In Laravel Framework through 5.5.40 and 5.6.x through 5.6.29, remote code execution might occur as a result of an unserialize call on a potentially untrusted X-XSRF-TOKEN value. This involves the decrypt method in Illuminate/Encryption/Encrypter.php and PendingBroadcast in gadgetchains/Laravel/RCE/3/chain.php in phpggc. The attacker must know the application key, which normally would never occur, but could happen if the attacker previously had privileged access or successfully accomplished a previous attack.
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Laravel | Laravel | * | 5.5.40 (including) |
| Laravel | Laravel | 5.6.0 (including) | 5.6.29 (including) |