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Arbitrary file reads in HashiCorp Nomad

High severity GitHub Reviewed Published Feb 18, 2022 to the GitHub Advisory Database • Updated Apr 21, 2023

Package

gomod github.com/hashicorp/nomad (Go)

Affected versions

>= 0.9.2, < 1.0.18
>= 1.1.0, < 1.1.12
>= 1.2.0, < 1.2.6

Patched versions

1.0.18
1.1.12
1.2.6

Description

Nomad is an easy-to-use, flexible, and performant workload orchestrator that can deploy a mix of microservice, batch, containerized, and non-containerized applications. HashiCorp Nomad and Nomad Enterprise 0.9.2 through 1.0.17, 1.1.11, and 1.2.5 allow operators with read-fs and alloc-exec (or job-submit) capabilities to read arbitrary files on the host filesystem as root. There are currently no known workarounds. Users are recommended to upgrade as soon as possible to avoid this issue.

References

Published by the National Vulnerability Database Feb 17, 2022
Published to the GitHub Advisory Database Feb 18, 2022
Reviewed Mar 1, 2022
Last updated Apr 21, 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
None
Scope
Unchanged
Confidentiality
High
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:N/UI:N/S:U/C:H/I:N/A:N

EPSS score

0.166%
(54th percentile)

Weaknesses

CVE ID

CVE-2022-24683

GHSA ID

GHSA-wmrx-57hm-mw7r

Source code

github.com/hashicorp/nomad

Credits

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