Directory traversal vulnerability in admin/skins.php for @lex Guestbook 4.0.2 and earlier allows remote attackers to create files in arbitrary directories via ".." sequences in the (1) aj_skin and (2) skin_edit parameters. NOTE: this can be leveraged for file inclusion by creating a skin file in the lang directory, then referencing that file via the lang parameter to index.php, which passes a sanity check in livre_include.php.
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
| Link | Tags |
|---|---|
| http://acid-root.new.fr/poc/20070107.txt | exploit |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/31397 | vdb entry |
| http://osvdb.org/31709 | vdb entry |
| http://securityreason.com/securityalert/2135 | third party advisory |
| http://osvdb.org/31708 | vdb entry |
| http://www.securityfocus.com/bid/21926 | vdb entry |
| http://www.securityfocus.com/archive/1/456218/100/0/threaded | mailing list |
| https://www.exploit-db.com/exploits/3103 | exploit |