Nomad Caller ACL Token’s Secret ID is Exposed to Sentinel

Description

A vulnerability was identified in Nomad such that the API caller’s ACL token secret ID is exposed to Sentinel policies. This vulnerability, CVE-2023-3299, affects Nomad from 1.2.11 up to 1.5.6, and 1.4.10 and was fixed in 1.6.0, 1.5.7, and 1.4.11.

Basic information

Type
reviewed
Severity
low
Advisory on GitHub
Open advisory ↗
Repository advisory
Source code
Browse source ↗
Published (advisory)
2023-07-20 00:30:24 UTC
Updated
2024-09-26 21:43:04 UTC
GitHub reviewed
2024-04-01 18:30:58 UTC
NVD published
2023-07-19

EPSS Score

Score Percentile
0.31% 54.19%

CVSS Scores

Base score Version Severity Vector
3.4 3.1
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.

Identifiers

CWEs

CWE id Name
CWE-201 Insertion of Sensitive Information Into Sent Data
CWE-668 Exposure of Resource to Wrong Sphere

Credits

  • anonymous4ACL24 (analyst)

Affected packages (2)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
go github.com/hashicorp/nomad >= 1.2.11, < 1.4.11 1.4.11
go github.com/hashicorp/nomad >= 1.5.0, < 1.5.7 1.5.7

References

cvelogic Threat Intelligence