Snort-alerts/WEB-PHP-phpBB-viewtopic-double-URL-encoding-attempt
Jump to navigation
Jump to search
WEB-PHP phpBB viewtopic double URL encoding attempt
Identification
| Id | 12610 |
|---|---|
| Alert | WEB-PHP phpBB viewtopic double URL encoding attempt |
| Classification | web-application-attack |
Trigger
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.
Affected systems
phpBB Group phpBB 29
Impact
Denial of Service. Information disclosure. Loss of integrity.
False positives
None known
Scenario
An attacker includes a remote file containing a malicious code via the URL.
Example
Corrective actions
- Upgrade to the latest non-affected version of the software.
- Apply the appropriate vendor supplied patches.