Attacker Value
High
(2 users assessed)
Exploitability
Moderate
(2 users assessed)
User Interaction
Unknown
Privileges Required
Unknown
Attack Vector
Unknown
2

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

Disclosure Date: August 09, 2018
Exploited in the Wild
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

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.

Add Assessment

1
Ratings
  • Attacker Value
    Medium
  • Exploitability
    Very Low
Technical Analysis

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​​​

CVSS V3 Severity and Metrics
Base Score:
None
Impact Score:
Unknown
Exploitability Score:
Unknown
Vector:
Unknown
Attack Vector (AV):
Unknown
Attack Complexity (AC):
Unknown
Privileges Required (PR):
Unknown
User Interaction (UI):
Unknown
Scope (S):
Unknown
Confidentiality (C):
Unknown
Integrity (I):
Unknown
Availability (A):
Unknown

General Information

Vendors

  • laravel

Products

  • laravel

Additional Info

Technical Analysis