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Nomad ACL Policies without Label are Applied to Unexpected Resources

Moderate severity GitHub Reviewed Published Jul 20, 2023 to the GitHub Advisory Database • Updated Sep 26, 2024

Package

gomod github.com/hashicorp/nomad (Go)

Affected versions

>= 0.7.0, < 1.4.11
>= 1.5.0, < 1.5.6

Patched versions

1.4.11
1.5.6

Description

A vulnerability was identified in Nomad, an ACL policy using a block without label may be applied to unexpected resources. This vulnerability, CVE-2023-3072, affects Nomad from 0.7 up to 1.5.6 and 1.4.10 and was fixed in 1.6.0, 1.5.7, and 1.4.11.

References

Published by the National Vulnerability Database Jul 20, 2023
Published to the GitHub Advisory Database Jul 20, 2023
Reviewed Apr 1, 2024
Last updated Sep 26, 2024

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
High
User interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
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:H/UI:N/S:C/C:N/I:N/A:L

EPSS score

0.053%
(22nd percentile)

Weaknesses

CVE ID

CVE-2023-3072

GHSA ID

GHSA-rpvr-38xv-xvxq

Source code

Credits

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