Laravel Framework Unserialize Token RCE (CVE-2018-15133)

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.

Recent assessments:

cbeek-r7 at January 17, 2024 10:10am UTC reported:

CVE-2018-15133 is a vulnerability in the Laravel Framework versions 5.5.40 and 5.6.x up to 5.6.29. It allows remote code execution 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. An attacker must know the application key to exploit this vulnerability, which would normally be unlikely but could occur if they had previously gained privileged access or successfully accomplished a prior attack​​​

jrobles-r7 at July 12, 2019 5:33pm UTC reported:

CVE-2018-15133 is a vulnerability in the Laravel Framework versions 5.5.40 and 5.6.x up to 5.6.29. It allows remote code execution 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. An attacker must know the application key to exploit this vulnerability, which would normally be unlikely but could occur if they had previously gained privileged access or successfully accomplished a prior attack​​​

Assessed Attacker Value: 4
Assessed Attacker Value: 4Assessed Attacker Value: 3