Arbitrary Command Injection Affecting salt package, versions <2017.7.4+dfsg1-1ubuntu18.04.2+esm1


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
4.3% (90th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UBUNTU1804-SALT-1133175
  • published21 Mar 2026
  • disclosed27 Feb 2021

Introduced: 27 Feb 2021

CVE-2020-28243  (opens in a new tab)
CWE-77  (opens in a new tab)

How to fix?

Upgrade Ubuntu:18.04 salt to version 2017.7.4+dfsg1-1ubuntu18.04.2+esm1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream salt package and not the salt package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 relevant fixed versions and status.

An issue was discovered in SaltStack Salt before 3002.5. The minion's restartcheck is vulnerable to command injection via a crafted process name. This allows for a local privilege escalation by any user able to create a files on the minion in a non-blacklisted directory.

CVSS Base Scores

version 3.1