CVE-2020-35459: OS Command Injection
First published: Tue Jan 12 2021(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| pip/crmsh | <=4.2.1 | |
| ClusterLabs crmsh | <=4.2.1 | |
| Debian Debian Linux | =9.0 | |
| ubuntu/crmsh | <4.2.0-2ubuntu1.1 | 4.2.0-2ubuntu1.1 |
| ubuntu/crmsh | <4.2.1-2 | 4.2.1-2 |
| ubuntu/crmsh | <4.2.1-2 | 4.2.1-2 |
| debian/crmsh | 4.0.0~git20190108.3d56538-3+deb10u1 4.2.1-2 4.4.1-1 4.6.0-2 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2020-35459
- https://bugzilla.suse.com/show_bug.cgi?id=1179999
- https://github.com/ClusterLabs/crmsh/blob/a403aa15f3ea575adfe5e43bf2a31c9f9094fcda/crmsh/history.py#L476
- https://github.com/ClusterLabs/crmsh/releases
- https://lists.debian.org/debian-lts-announce/2021/01/msg00021.html
- https://www.openwall.com/lists/oss-security/2021/01/12/3
- http://www.openwall.com/lists/oss-security/2021/01/12/3
- https://github.com/advisories/GHSA-99xx-83jm-h24m (Advisory)
- https://launchpad.net/bugs/cve/CVE-2020-35459
- https://security-tracker.debian.org/tracker/CVE-2020-35459
- https://ubuntu.com/security/notices/USN-6711-1
- https://www.cve.org/CVERecord?id=CVE-2020-35459
- https://ubuntu.com/security/CVE-2020-35459
Frequently Asked Questions
What is CVE-2020-35459?
CVE-2020-35459 is a vulnerability in ClusterLabs crmsh through version 4.2.1 that allows local attackers to execute commands via shell code injection to the crm history commandline.
What is the severity of CVE-2020-35459?
The severity of CVE-2020-35459 is high with a CVSS score of 7.8.
How does CVE-2020-35459 affect the software?
CVE-2020-35459 affects ClusterLabs crmsh versions up to and including 4.2.1.
Is there a fix available for CVE-2020-35459?
Yes, upgrading to a version of ClusterLabs crmsh that is not affected, such as version 4.2.2 or later, can fix CVE-2020-35459.
Are there any references for CVE-2020-35459?
Yes, you can find more information about CVE-2020-35459 at the following references: [NVD](https://nvd.nist.gov/vuln/detail/CVE-2020-35459), [Bugzilla](https://bugzilla.suse.com/show_bug.cgi?id=1179999), [GitHub](https://github.com/ClusterLabs/crmsh/blob/a403aa15f3ea575adfe5e43bf2a31c9f9094fcda/crmsh/history.py#L476).
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