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Concrete CMS vulnerable to Improper Authentication

Moderate severity GitHub Reviewed Published Nov 15, 2022 to the GitHub Advisory Database • Updated Apr 28, 2023

Package

composer concrete5/concrete5 (Composer)

Affected versions

< 8.5.10
>= 9.0.0, < 9.1.3

Patched versions

8.5.10
9.1.3

Description

Concrete CMS (formerly concrete5) below 8.5.10 and between 9.0.0 and 9.1.2 did not use strict comparison for the legacy_salt so that limited authentication bypass could occur if using this functionality. Remediate by updating to Concrete CMS 9.1.3+ or 8.5.10+.

References

Published by the National Vulnerability Database Nov 14, 2022
Published to the GitHub Advisory Database Nov 15, 2022
Reviewed Nov 22, 2022
Last updated Apr 28, 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
None
User interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

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:U/C:L/I:L/A:L

EPSS score

0.140%
(51st percentile)

Weaknesses

CVE ID

CVE-2022-43690

GHSA ID

GHSA-q56r-mw39-944g

Source code

Credits

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