Laravel Deserialization of Untrusted Data Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 16/01/2024. Patch affected systems as an emergency.
| Package | Affected versions | Patched versions |
|---|---|---|
| laravel/framework | ≥ 5.6.0, < 5.6.30≤ 5.5.40 | 5.6.30 |
| laravel | ≥ 5.6.0, ≤ 5.6.29≤ 5.5.40 |
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.
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