CVE-2020-11651

CVE-2020-11651 is a critical-severity (CVSS 9.8) vulnerability in SaltStack Salt. CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by May 3, 2022. CISA does not currently list it as used in ransomware campaigns. SaltStack has 3 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.

An issue was discovered in SaltStack Salt before 2019.2.4 and 3000 before 3000.2. The salt-master process ClearFuncs class does not properly validate method calls. This allows a remote user to access some methods without authentication. These methods can be used to retrieve user tokens from the salt master and/or run arbitrary commands on salt minions.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

• http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00047.html
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00070.html
• http://packetstormsecurity.com/files/157560/Saltstack-3000.1-Remote-Code-Execution.html
• http://packetstormsecurity.com/files/157678/SaltStack-Salt-Master-Minion-Unauthenticated-Remote-Code-Execution.html
• http://www.vmware.com/security/advisories/VMSA-2020-0009.html
• https://docs.saltstack.com/en/latest/topics/releases/2019.2.4.html
• https://github.com/saltstack/salt/blob/v3000.2_docs/doc/topics/releases/3000.2.rst
• https://lists.debian.org/debian-lts-announce/2020/05/msg00027.html