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Sandbox bypass in Latte templates

High severity GitHub Reviewed Published Jan 4, 2022 in nette/latte • Updated Feb 3, 2023

Package

composer latte/latte (Composer)

Affected versions

>= 2.10.0, < 2.10.8
>= 2.9.0, < 2.9.6
>= 2.8.0, < 2.8.8

Patched versions

2.10.8
2.9.6
2.8.8

Description

Impact

The problem affects users who use the sandbox in Latte and templates from untrusted sources.

Patches

Sandbox first appeared in Latte 2.8.0. The issue is fixed in the versions 2.8.8, 2.9.6 and 2.10.8.

References

The issues were discovered by

References

@dg dg published to nette/latte Jan 4, 2022
Published by the National Vulnerability Database Jan 4, 2022
Reviewed Jan 6, 2022
Published to the GitHub Advisory Database Jan 6, 2022
Last updated Feb 3, 2023

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
None
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
None

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:N/UI:R/S:C/C:H/I:L/A:N

EPSS score

0.066%
(31st percentile)

Weaknesses

CVE ID

CVE-2022-21648

GHSA ID

GHSA-36m2-8rhx-f36j

Source code

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