CVE-2020-16846: SaltStack Salt rest_cherrypy ssh_port Command Injection Remote Code Execution Vulnerability
First published: Fri Nov 06 2020(Updated: )
A user could use shell injections with the Salt API using the SSH Client.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| SaltStack Salt | <2015.8.10 | |
| SaltStack Salt | >=2015.8.11<2015.8.13 | |
| SaltStack Salt | >=2016.3.0<2016.3.4 | |
| SaltStack Salt | >=2016.3.5<2016.3.6 | |
| SaltStack Salt | >=2016.3.7<2016.3.8 | |
| SaltStack Salt | >=2016.11.0<2016.11.3 | |
| SaltStack Salt | >=2016.11.4<2016.11.6 | |
| SaltStack Salt | >=2016.11.7<2016.11.10 | |
| SaltStack Salt | >=2017.5.0<2017.7.4 | |
| SaltStack Salt | >=2017.7.5<2017.7.8 | |
| SaltStack Salt | >=2018.2.0<2018.3.5 | |
| SaltStack Salt | >=2019.2.0<2019.2.5 | |
| SaltStack Salt | >=3000.0<3000.3 | |
| SaltStack Salt | =3001 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 | |
| SaltStack Salt | <3002<3001.1, 3001.2<3000.3, 3000.4<2019.2.5, 2019.2.6<2018.3.5<2017.7.4, 2017.7.8<2016.11.3, 2016.11.6, 2016.11.10<2016.3.4, 2016.3.6, 2016.3.8<2015.8.10, 2015.8.13<3002.x<3001.x<3000.x<2019.x | 3002 3001.1, 3001.2 3000.3, 3000.4 2019.2.5, 2019.2.6 2018.3.5 2017.7.4, 2017.7.8 2016.11.3, 2016.11.6, 2016.11.10 2016.3.4, 2016.3.6, 2016.3.8 2015.8.10, 2015.8.13 3002.x 3001.x 3000.x 2019.x |
| SaltStack Salt | =3002 | |
| Fedoraproject Fedora | =31 | |
| pip/salt | >=3002<3002.1 | 3002.1 |
| pip/salt | >=3001<3001.2 | 3001.2 |
| pip/salt | >=3000.0<3000.4 | 3000.4 |
| pip/salt | >=2019.2.0<2019.2.6 | 2019.2.6 |
| pip/salt | >=2018.2.0<2018.3.5 | 2018.3.5 |
| pip/salt | >=2017.5.0<2017.7.8 | 2017.7.8 |
| pip/salt | >=2016.11.0<2016.11.10 | 2016.11.10 |
| pip/salt | >=2016.3.0<2016.3.8 | 2016.3.8 |
| pip/salt | <2015.8.13 | 2015.8.13 |
| SaltStack Salt | ||
| debian/salt |
Remedy
Install the CVE fix and ensure your Salt-API has been restarted.
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00029.html
- http://packetstormsecurity.com/files/160039/SaltStack-Salt-REST-API-Arbitrary-Command-Execution.html
- https://github.com/saltstack/salt/releases
- https://lists.debian.org/debian-lts-announce/2020/12/msg00007.html
- https://lists.debian.org/debian-lts-announce/2022/01/msg00000.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TPOGB2F6XUAIGFDTOCQDNB2VIXFXHWMA/
- https://security.gentoo.org/glsa/202011-13
- https://www.debian.org/security/2021/dsa-4837
- https://www.saltstack.com/blog/on-november-3-2020-saltstack-publicly-disclosed-three-new-cves/
- https://www.zerodayinitiative.com/advisories/ZDI-20-1379/
- https://www.zerodayinitiative.com/advisories/ZDI-20-1380/
- https://www.zerodayinitiative.com/advisories/ZDI-20-1381/
- https://www.zerodayinitiative.com/advisories/ZDI-20-1382/
- https://www.zerodayinitiative.com/advisories/ZDI-20-1383/
- https://saltproject.io/security-announcements/2020-11-02-advisory/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TPOGB2F6XUAIGFDTOCQDNB2VIXFXHWMA/
- https://www.zerodayinitiative.com/advisories/ZDI-20-1382
- https://www.zerodayinitiative.com/advisories/ZDI-20-1380
- https://www.zerodayinitiative.com/advisories/ZDI-20-1379
- https://www.zerodayinitiative.com/advisories/ZDI-20-1383
- https://www.zerodayinitiative.com/advisories/ZDI-20-1381
- https://nvd.nist.gov/vuln/detail/CVE-2020-16846
- https://github.com/saltstack/salt/blob/8f9405cf8e6f7d7776d5000841c886dec6d96250/doc/topics/releases/2019.2.6.rst#L10
- https://github.com/saltstack/salt/blob/8f9405cf8e6f7d7776d5000841c886dec6d96250/doc/topics/releases/3000.4.rst#L10
- https://github.com/saltstack/salt/blob/8f9405cf8e6f7d7776d5000841c886dec6d96250/doc/topics/releases/3001.2.rst#L10
- https://github.com/saltstack/salt/blob/8f9405cf8e6f7d7776d5000841c886dec6d96250/doc/topics/releases/3002.1.rst#L12
- https://www.saltstack.com/blog/on-november-3-2020-saltstack-publicly-disclosed-three-new-cves
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TPOGB2F6XUAIGFDTOCQDNB2VIXFXHWMA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TPOGB2F6XUAIGFDTOCQDNB2VIXFXHWMA
- https://github.com/advisories/GHSA-qr38-h96j-2j3w (Advisory)
- https://launchpad.net/bugs/cve/CVE-2020-16846
- https://gitlab.com/saltstack/open/salt-patches/tree/master/patches/2020/09/02/
- https://github.com/saltstack/salt/issues/58970
- https://github.com/saltstack/salt/commit/84d91931865626a9b53558f88d6c8919a270df3a
- https://security-tracker.debian.org/tracker/CVE-2020-16846
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16846
- https://ubuntu.com/security/CVE-2020-16846
- https://github.com/pypa/advisory-database/tree/main/vulns/salt/PYSEC-2020-104.yaml
Frequently Asked Questions
What is CVE-2020-16846?
CVE-2020-16846 is a SaltStack Salt Shell Injection Vulnerability.
How severe is CVE-2020-16846?
CVE-2020-16846 has a severity rating of 9.8 (critical).
What software is affected by CVE-2020-16846?
CVE-2020-16846 affects installations of SaltStack Salt versions 2018.3.4+dfsg1-6+deb10u3, 3002.6+dfsg1-4+deb11u1, and 3004.1+dfsg-2.2.
Is authentication required to exploit CVE-2020-16846?
No, authentication is not required to exploit CVE-2020-16846.
How can I fix CVE-2020-16846?
To fix CVE-2020-16846, it is recommended to update to a patched version of SaltStack Salt.
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