CVE-2020-35459: clusterlabs crmsh OS Command Injection
CVSS: 7.8v3.1HighModified
AliasesSUSE-SU-2021:0083-1SUSE-SU-2021:0084-1SUSE-SU-2021:0085-1SUSE-SU-2021:0086-1SUSE-SU-2021:0087-1SUSE-SU-2021:2238-1SUSE-SU-2021:2239-1SUSE-SU-2021:2435-1SUSE-SU-2021:3121-1GHSA-99xx-83jm-h24mPYSEC-2026-799UBUNTU-CVE-2020-35459USN-6711-1DEBIAN-CVE-2020-35459DLA-2533-1openSUSE-SU-2021:0055-1openSUSE-SU-2021:0073-1openSUSE-SU-2021:1087-1openSUSE-SU-2021:2435-1openSUSE-SU-2024:10700-1
Published 12-01-2021Last modified 04-08-2024
Vulnerability summary
CVE-2020-35459 is a high (CVSS 7.8) OS Command Injection vulnerability in clusterlabs crmsh. EPSS estimates a 0.69% chance of exploitation in the next 30 days, higher than 51.8% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
0.69%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 11 · Related 11Timeline
- 12-01-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in ClusterLabs crmsh through 4.2.1. Local attackers able to call "crm history" (when "crm" is run) were able to execute commands via shell code injection to the crm history commandline, potentially allowing escalation of privileges.
CVSS metrics
5 scores · 4 sources · 2 versionsHigh 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 4 agree
- OSV · PypiEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
High 7.2Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
0.69%
Chance of exploitation in the next 30 days
Percentile
52%
Versus all other CVEs
30-day change
+0.01 pp
From 0.68% on 18-09-2026
18-09-202618-10-2026
EPSS score0.69%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (openwall.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Suse7 products
- crmsh&distro=SUSE Linux Enterprise High Availability Extension 12 SP3< 3.0.4+git.1607490926.e492f845-13.56.1
- crmsh&distro=SUSE Linux Enterprise High Availability Extension 12 SP4< 4.1.0+git.1607482714.9633b80d-2.50.1 | < 4.1.1+git.1630047134.803a70f2-2.65.1
- crmsh&distro=SUSE Linux Enterprise High Availability Extension 12 SP5< 4.1.0+git.1607482714.9633b80d-2.50.1 | < 4.1.1+git.1630047134.803a70f2-2.65.1
- crmsh&distro=SUSE Linux Enterprise High Availability Extension 15< 4.2.0+git.1607075079.a25648d8-3.56.1 | < 4.3.1+20210624.67223df2-3.74.1
- crmsh&distro=SUSE Linux Enterprise High Availability Extension 15 SP1< 4.2.0+git.1607075079.a25648d8-3.51.1 | < 4.3.1+20210624.67223df2-3.69.1
Opensuse4 products
- crmsh&distro=openSUSE Leap 15.1< 4.2.0+git.1607075079.a25648d8-lp151.2.45.1
- crmsh&distro=openSUSE Leap 15.2< 4.2.0+git.1607075079.a25648d8-lp152.4.39.1 | < 4.3.1+20210702.4e0ee8fb-lp152.4.59.1
- crmsh&distro=openSUSE Leap 15.3< 4.3.1+20210702.4e0ee8fb-5.59.1
- crmsh&distro=openSUSE Tumbleweed< 4.3.1+20210913.d7356663-1.2
Debian2 products
- crmsh< 4.2.1-2 | < 2.3.2-4+deb9u1
- debian_linuxEOL9.0
Clusterlabs1 product
- crmsh≤ 4.2.1
PyPI1 product
- crmsh≤ 4.2.1
Ubuntu1 product
- crmshAll versions (No fix recorded) | < 4.2.0-2ubuntu1.1
6 vendors · 16 products
References
35 links- www.openwall.com/lists/oss-security/2021/01/12/3X Refsource CONFIRMWEBREPORTExploitMailing ListThird Party Advisory
- github.com/ClusterLabs/crmsh/blob/a403aa15f3ea575adfe5e43bf2a31c9f9094fcda/crmsh/history.pyX Refsource MISCWEBPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2021/01/12/3Mailing ListX Refsource MLISTWEBPatchThird Party Advisory
- lists.debian.org/debian-lts-announce/2021/01/msg00021.htmlMailing ListX Refsource MLISTWEBThird Party Advisory
Show all 35 references
- github.com/ClusterLabs/crmshPACKAGE
- pypi.org/project/crmshPACKAGE
- lists.opensuse.org/archives/…Advisory
- lists.opensuse.org/archives/…Advisory
- lists.opensuse.org/archives/…Advisory
- lists.opensuse.org/archives/…Advisory