Read the docs
TI-2021-02159 Aliases CVE-2021-3020GHSA-cw6w-5gqc-jh8j

An issue was discovered in ClusterLabs Hawk (aka HA Web Konsole) through 2.3.0-15.

Priority MEDIUM 41CWE-269Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-269.

Summary

An issue was discovered in ClusterLabs Hawk (aka HA Web Konsole) through 2.3.0-15. It ships the binary hawk_invoke (built from tools/hawk_invoke.c), intended to be used as a setuid program. This allows the hacluster user to invoke certain commands as root (with an attempt to limit this to safe combinations). This user is able to execute an interactive "shell" that isn't limited to the commands specified in hawk_invoke, allowing escalation to root.

Why it matters now

EPSS 0.01254 69th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:clusterlabs:hawk:*:*:*:*:*:*:*:*up to 2.3.0-15VulnerableClusterLabs
  • cpe:2.3:a:clusterlabs:hawk:*:*:*:*:*:*:*:* Versions up to 2.3.0-15 Vulnerable ·ClusterLabs

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-3020
  2. 2026-10-03 Alias added: GHSA-cw6w-5gqc-jh8j

References

Patch 1

Advisory 1

Other 1

  • TI-2020-17987 An issue was discovered in ClusterLabs Hawk 2.x through 2.3.0-x. CVSS 3.1CRITICAL 9.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences