SaltStack Multiple Vulnerabilities (CVE-2020-16846, CVE-2020-17490, CVE-2020-25592) Threat Alert
November 27, 2020 | Adeline Zhang
Recently, SaltStack released a security update to address multiple vulnerabilities (CVE-2020-16846, CVE-2020-17490, CVE-2020-25592). These vulnerabilities can cause authentication bypass and command execution. SaltStack recommends users upgrade as soon as possible.
Salt is an open-source IP architecture management solution written in Python. It has been widely used in data centers worldwide.
Reference link:
https://www.saltstack.com/blog/on-november-3-2020-saltstack-publicly-disclosed-three-new-cves/
Vulnerability Description
When accessing the Salt API, an attacker could use shell injections to obtain SSH connections, thereby executing Salt-API commands.
An attacker could log in to the Salt client as a user with low privileges and read private keys, causing information disclosure.
Since the eauth and Access Control List (ACL) functionalities of Salt are prone to an authentication bypass vulnerability, an attacker could bypass authentication via the Salt API, thereby connecting to the target host via Salt SSH and executing commands.
Affected Versions
SaltStack has officially released updates to fix the preceding vulnerabilities. Users are advised to upgrade to the latest versions without delay.
New versions are available at the following link:
https://repo.saltstack.com/
Patched versions are available at the following link:
https://gitlab.com/saltstack/open/salt-patches
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