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Prototype pollution in Snowboard framework

High severity GitHub Reviewed Published Oct 26, 2022 in wintercms/winter • Updated Jan 30, 2023

Package

composer wintercms/winter (Composer)

Affected versions

>= 1.1.8, < 1.1.10
>= 1.2.0, < 1.2.1

Patched versions

1.1.10
1.2.1

Description

Impact

The Snowboard framework in affected versions is vulnerable to prototype pollution in the main Snowboard class as well as its plugin loader.

Patches

This issue has been patched in wintercms/winter@2a13faf (for 1.2) and wintercms/winter@bce4b59 (for 1.1) and is available with Winter v1.1.10 and v1.2.1.

Workarounds

If you have not yet upgraded, or are using the 1.1 branch of Winter (1.1.8 or above), you can avoid this issue by following some common security practices for JavaScript, including implementing a content security policy and auditing your scripts.

The 1.0 branch of Winter is not affected, as it does not contain the Snowboard framework.

For more information

If you have any questions or comments about this advisory:

References

@bennothommo bennothommo published to wintercms/winter Oct 26, 2022
Published by the National Vulnerability Database Oct 26, 2022
Published to the GitHub Advisory Database Oct 27, 2022
Reviewed Oct 27, 2022
Last updated Jan 30, 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
High
Privileges required
None
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:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS score

0.463%
(76th percentile)

Weaknesses

CVE ID

CVE-2022-39357

GHSA ID

GHSA-3fh5-q6fg-w28q

Source code

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