CVE-2021-3020: clusterlabs hawk Improper Privilege Management
Vulnerability summary
CVE-2021-3020 is a high (CVSS 8.8) Improper Privilege Management vulnerability in clusterlabs hawk. EPSS estimates a 1.23% chance of exploitation in the next 30 days, higher than 68.3% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 6 · Related 6Timeline
- 25-08-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
1.23%
Chance of exploitation in the next 30 days
Percentile
68%
Versus all other CVEs
30-day change
0.00 pp
From 1.23% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Clusterlabs1 product
- hawk≤ 2.3.0-15
Mageia1 product
- crmsh< 4.4.0-1.mga8
2 vendors · 2 products
References
6 links- github.com/ClusterLabs/crmsh/commit/c538024b8ebd138dc373b005189471d9b77e9c82X Refsource MISCPatchThird Party Advisory