CVE-2021-3020 json
An issue was discovered in ClusterLabs Hawk (aka HA Web Konsole) through 2.3.0-15.
published 2022-08-25 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-26373
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 69%
- public exploits
- 0
- none known
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.
Patch / fix
- crmsh SLE High Availability Extension 15 4.3.0+20210219.5d1bf034-3.62.3
- crmsh SLE High Availability Extension 15 SP1 4.3.0+20210219.5d1bf034-3.57.3
- crmsh SLE High Availability Extension 15 SP2 4.3.0+20210305.9db5c9a8-5.42.1
- crmsh SLE High Availability Extension 12 SP3 3.0.4+git.1614156978.4c1dc46d-13.62.1
- crmsh SLE High Availability Extension 12 SP5, SLE High Availability Extension 12 SP4 4.1.0+git.1614156984.f4f5e146-2.56.2
suse advisories SUSE-SU-2021:0806-1SUSE-SU-2021:0782-1SUSE-SU-2021:0781-1SUSE-SU-2021:0771-1SUSE-SU-2021:0722-1
- crmsh openSUSE Leap 15.2 4.3.0+20210305.9db5c9a8-lp152.4.47.1
opensuse advisories openSUSE-SU-2021:0410-1
Exploit prediction
1.25% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Classification
- Weakness
-
- CWE-269 Improper Privilege Management
References
-
github.com
/ClusterLabs/crmsh/commit/c538024b8ebd138dc373b005189471d9b77e9c82
patch, third-party-advisory
-
github.com
/ClusterLabs/hawk/releases
release-notes, third-party-advisory
-
bugzilla.suse.com
/show_bug.cgi?id=1180571
permissions-required
Sources
- CVE List CVE-2021-3020
- NVD CVE-2021-3020
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.