Security restrictions bypass in Symfony Twig

Published: 2022-03-24 | Updated: 2022-07-18

Risk	High
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2022-23614
CWE-ID	CWE-254
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #1 is available.
Vulnerable software Subscribe	Twig Web applications / CMS
Vendor	Symfony

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Security features bypass

EUVDB-ID: #VU61609

Risk: High

CVSSv3.1:

CVE-ID: CVE-2022-23614

CWE-ID: CWE-254 - Security Features

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to missing security restrictions for non closures in "sort" filter when using a sandbox mode. A remote attacker can pass specially crafted data to the application and execute arbitrary PHP code on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Twig: 3.3.0 - 3.3.7, 3.2.1, 3.1.0 - 3.1.1, 3.0.0 - 3.0.5, 2.14.0 - 2.14.10, 2.13.0 - 2.13.1, 2.12.0 - 2.12.5, 2.11.0 - 2.11.3, 2.10.0, 2.9.0, 2.8.0 - 2.8.1, 2.7.0 - 2.7.4, 2.6.0 - 2.6.2, 2.5.0, 2.4.0 - 2.4.8, 2.3.0 - 2.3.2, 2.2.0, 2.1.0, 2.0.0

CPE2.3

cpe:2.3:a:symfony:twig:3.3.7:*:*:*:*:*:*:*

External links

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?