vendor:
PDOSessionHandler
by:
Exploit Database
7.5
CVSS
HIGH
Denial of Service
400
CWE
Product Name: PDOSessionHandler
Affected Version From: N/A
Affected Version To: N/A
Patch Exists: NO
Related CWE: N/A
CPE: N/A
Metasploit:
N/A
Other Scripts:
N/A
Platforms Tested: N/A
2020
PDOSessionHandler Denial of Service
The PDOSessionHandler class allows to store sessions on a PDO connection. Under some configurations (see below) and with a well-crafted payload, it was possible to do a denial of service on a Symfony application without too much resources. An application is vulnerable when it is using PDOSessionHandler to store its sessions, it uses MySQL as a backend for sessions managed by PDOSessionHandler, and the SQL mode does not contain STRICT_ALL_TABLES or STRICT_TRANS_TABLES (check via SELECT @@sql_mode).
Mitigation:
Ensure that the SQL mode contains STRICT_ALL_TABLES or STRICT_TRANS_TABLES.
