RCE in Clusterlabs Crmsh
CVE-2020-35459
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (50.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000
Affected products
- Clusterlabs Crmsh
- Debian Linux — versions 9.0
Weakness classification (CWE)
References
- bugzilla.suse.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- github.com/ClusterLabs/crmsh/releases (Third Party Advisory, Release Notes)
- www.openwall.com/lists/oss-security/2021/01/12/3 (Exploit, Mailing List, Third Party Advisory)
- github.com/ClusterLabs/crmsh/blob/a403aa15f3ea575adfe5e43bf2a31c9f9094fcda/crms… (Patch, Third Party Advisory)
- www.openwall.com/lists/oss-security/2021/01/12/3 (mailing-list, Patch, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2021/01/msg00021.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-35459?
- CVE-2020-35459 is a high-severity vulnerability in Clusterlabs Crmsh, classified under OS Command Injection. CVSS score: 7.8/10. Published 2021-01-12.
- How severe is CVE-2020-35459?
- High severity. CVSS v3 base score is 7.8 out of 10.