Coppermine 1.5.40 Weak Cryptography
Posted on 29 February 2016
[+] Credits: hyp3rlinx [+] Website: hyp3rlinx.altervista.org [+] Source: http://hyp3rlinx.altervista.org/advisories/COPPERMINE-WEAK-CRYPTO.txt Vendor: ====================== coppermine-gallery.net Product: ========================= Coppermine 1.5.40 downloads as cpg1.5.40.zip Coppermine is a multi-purpose fully-featured and integrated web picture gallery script written in PHP using GD or ImageMagick as image library with a MySQL backend. Vulnerability Type: =================== Weak Crypto Vulnerability Details: ===================== Coppermine stores users passwords in using weak MD5 hash function without any salt. Using weak cryptographic one-way hash functions like MD5 without using salt for storing user passwords allows attackers that gain access to this data ability to conduct password cracking attacks using pre-computed dictionaries, e.g. rainbow tables. if their local machine is compromised and attackers gain access to the MD5 hashed passwords. e.g. e99a18c428cb38d5f260853678922e03 MD5 : abc123 In register.php line 591 we find following md5 one way hash function applied to users password with no salt whatsoever, then stored in DB. $encpassword = md5($password); $user_language = $CONFIG['lang']; $sql = "INSERT INTO {$CONFIG['TABLE_USERS']} (user_regdate, user_active, user_actkey, user_name, user_password, user_email, user_profile1, user_profile2, user_profile3, user_profile4, user_profile5, user_profile6, user_language) VALUES (NOW(), '$active', '$act_key', '$user_name', '$encpassword', '$email', '$profile1', '$profile2', '$profile3', '$profile4', '$profile5', '$profile6', '$user_language')"; $result = cpg_db_query($sql); Disclosure Date: ================================ Feb 26, 2016 : Public Disclosure ================================= [+] Disclaimer Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author. The author is not responsible for any misuse of the information contained herein and prohibits any malicious use of all security related information or exploits by the author or elsewhere. All Content is (c) of hyp3rlinx. hyp3rlinx ™
