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616 B
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12 lines
No EOL
616 B
Text
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.
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An application is vulnerable when:
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- It is using PDOSessionHandler to store its sessions;
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- And it uses MySQL as a backend for sessions managed by PDOSessionHandler;
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- And the SQL mode does not contain STRICT_ALL_TABLES or STRICT_TRANS_TABLES (check via SELECT @@sql_mode).
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POC:
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https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/44768.tgz |