WEB-PHP phpBB viewtopic double URL encoding attempt
|Alert||WEB-PHP phpBB viewtopic double URL encoding attempt|
viewtopic.php in phpBB 2.x before 2.0.11 improperly URL decodes the highlight parameter when extracting words and phrases to highlight, which allows remote attackers to execute arbitrary PHP code by double-encoding the highlight value so that special characters are inserted into the result, which is then processed by PHP exec, as exploited by the Santy.A worm.
phpBB Group phpBB 29
Denial of Service. Information disclosure. Loss of integrity.
An attacker includes a remote file containing a malicious code via the URL.
- Upgrade to the latest non-affected version of the software.
- Apply the appropriate vendor supplied patches.