SaltStack Multiple Vulnerabilities (CVE-2020-16846, CVE-2020-17490, CVE-2020-25592) Threat Alert

SaltStack Multiple Vulnerabilities (CVE-2020-16846, CVE-2020-17490, CVE-2020-25592) Threat Alert

November 27, 2020 | Mina Hao

Overview

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

  • CVE-2020-16846

When accessing the Salt API, an attacker could use shell injections to obtain SSH connections, thereby executing Salt-API commands.

  • CVE-2020-17490

An attacker could log in to the Salt client as a user with low privileges and read private keys, causing information disclosure.

  • CVE-2020-25592

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

  • 2015
  • 2016
  • 2017
  • 2018
  • 2019
  • 3000
  • 3001
  • 3002

Solution

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

Statement

This advisory is only used to describe a potential risk. NSFOCUS does not provide any commitment or promise on this advisory. NSFOCUS and the author will not bear any liability for any direct and/or indirect consequences and losses caused by transmitting and/or using this advisory. NSFOCUS reserves all the rights to modify and interpret this advisory. Please include this statement paragraph when reproducing or transferring this advisory. Do not modify this advisory, add/delete any information to/from it, or use this advisory for commercial purposes without permission from NSFOCUS.

About NSFOCUS

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