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Command Injection in SaltStack Salt

High severity GitHub Reviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Oct 23, 2024

Package

pip salt (pip)

Affected versions

>= 2016.11.0, <= 3002.6

Patched versions

3003rc1

Description

In SaltStack Salt 2016.9 through 3002.6, a command injection vulnerability exists in the snapper module that allows for local privilege escalation on a minion. The attack requires that a file is created with a pathname that is backed up by snapper, and that the master calls the snapper.diff function (which executes popen unsafely).

References

Published by the National Vulnerability Database Apr 23, 2021
Published to the GitHub Advisory Database May 24, 2022
Reviewed Jun 23, 2022
Last updated Oct 23, 2024

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS score

0.049%
(20th percentile)

Weaknesses

CVE ID

CVE-2021-31607

GHSA ID

GHSA-hcjf-rp5h-g5h3

Source code

No known source code
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