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Improper Privilege Management in Mattermost

Moderate severity GitHub Reviewed Published Apr 14, 2022 to the GitHub Advisory Database • Updated Feb 2, 2023

Package

gomod github.com/mattermost/mattermost-server/v5 (Go)

Affected versions

< 5.37.9

Patched versions

5.37.9
gomod github.com/mattermost/mattermost-server/v6 (Go)
>= 6.4.0, < 6.4.2
>= 6.3.0, < 6.3.5
>= 6.0.0, < 6.2.5
6.4.2
6.3.5
6.2.5

Description

One of the API in Mattermost version 6.4.1 and earlier fails to properly protect the permissions, which allows the authenticated members with restricted custom admin role to bypass the restrictions and view the server logs and server config.json file contents. Per the Mattermost security updates page, versions 6.4.2, 6.3.5, 6.2.5, and 5.37.9 contain patches for this issue

References

Published by the National Vulnerability Database Apr 13, 2022
Published to the GitHub Advisory Database Apr 14, 2022
Reviewed Apr 22, 2022
Last updated Feb 2, 2023

Severity

Moderate

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
Low
Integrity
None
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:L/UI:N/S:U/C:L/I:N/A:N

EPSS score

0.054%
(24th percentile)

Weaknesses

CVE ID

CVE-2022-1332

GHSA ID

GHSA-qggc-pj29-j27m

Source code

Credits

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