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Code injection in Twig

High severity GitHub Reviewed Published Feb 4, 2022 in twigphp/Twig • Updated Feb 5, 2024

Package

composer twig/twig (Composer)

Affected versions

>= 2.0.0, < 2.14.11
>= 3.0.0, < 3.3.8

Patched versions

2.14.11
3.3.8

Description

Description

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.

Resolution

We now disallow calling non Closure in the sort filter like we already did for some other filters.

Credits

We would like to thank Marlon Starkloff for reporting the issue and Fabien Potencier for fixing the issue.

References

@fabpot fabpot published to twigphp/Twig Feb 4, 2022
Published by the National Vulnerability Database Feb 4, 2022
Reviewed Feb 7, 2022
Published to the GitHub Advisory Database Feb 10, 2022
Last updated Feb 5, 2024

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(97th percentile)

Weaknesses

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. Learn more on MITRE.

Improper Control of Generation of Code ('Code Injection')

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Learn more on MITRE.

CVE ID

CVE-2022-23614

GHSA ID

GHSA-5mv2-rx3q-4w2v

Source code

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