CVE-2018-15133

HighActively exploited (CISA KEV)

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.

SeverityHigh
CVSS8.1
Exploit probability—
ProductLaravel Framework
PublishedAug 9, 2018
First seenAug 9, 2018
Added to KEVJan 16, 2024

How to fix

CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

CISA due date: Feb 6, 2024
Update
  • laravel/framework5.6.30 or later

Affected products

ProductAffected versionsFixed in
laravel laravelv ≤ 5.5.40, 5.6.0 ≤ v ≤ 5.6.29—
laravel/frameworkPackagistv ≤ 5.5.40, 5.6.0 ≤ v < 5.6.305.6.30

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