Code injection in Twig
CVE-2022-23614

8.8HIGH

Key Information:

Vendor

TwigPHP

Status
Twig
Vendor
CVE Published:
4 February 2022

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 27%

What is CVE-2022-23614?

Twig is an open source template language for PHP. When in a sandbox mode, the arrow parameter of the sort filter must be a closure to avoid attackers being able to run arbitrary PHP functions. In affected versions this constraint was not properly enforced and could lead to code injection of arbitrary PHP code. Patched versions now disallow calling non Closure in the sort filter as is the case for some other filters. Users are advised to upgrade.

Affected Version(s)

Twig >= 3.0.0, < 3.3.8 < 3.0.0, 3.3.8

Twig >= 2.0.0, < 2.14.11 < 2.0.0, 2.14.11

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2022-23614
Created by davwwwx

CVE-2022-23614
Created by 4rtamis

References

https://github.com/twigphp/Twig/security/advisories/GHSA-...
x_refsource_CONFIRM
https://github.com/twigphp/Twig/commit/22b9dc3c03ee66d7e2...
x_refsource_MISC
https://github.com/twigphp/Twig/commit/2eb33080558611201b...
x_refsource_MISC

EPSS Score

27% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.