CVE-2020-17490 SaltStack Salt Allows creating certificates with weak file permissions

Medium 5.5 Published Updated

Weak file permissions on TLS certificates allow attackers to read sensitive keys, compromising secure communications in SaltStack deployments.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2020-17490?

CVE-2020-17490 is a medium-severity vulnerability in Debian Debian Linux, published on 6 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The TLS module within SaltStack Salt through 3002 creates certificates with weak file permissions.

Weakness: CWE-732

Which versions are affected by CVE-2020-17490?

19 open source packages ship an affected version, including salt. It affects 2 products.

PackageAffectedFixed in
salt PyPIAll versions2015.8.10, 2015.8.13, 2016.3.4, 2016.3.6, 2016.3.8, 2016.11.3, 2016.11.6, 2016.11.10, 2017.7.4, 2017.7.8, 2018.3.5, 2019.2.5, 3000.3
salt PyPIAll versions2015.8.13
salt PyPIAll versions2015.8.13
salt PyPIFrom 2016.11.02016.11.10
salt PyPIFrom 2016.11.02016.11.10
salt PyPIFrom 2016.3.02016.3.8
13 more packages
salt PyPIFrom 2016.3.02016.3.8
salt PyPIFrom 2017.5.02017.7.8
salt PyPIFrom 2017.5.02017.7.8
salt PyPIFrom 2018.2.02018.3.5
salt PyPIFrom 2018.2.02018.3.5
salt PyPIFrom 2019.2.02019.2.6
salt PyPIFrom 2019.2.02019.2.6
salt PyPIFrom 30003000.4
salt PyPIFrom 30003000.4
salt PyPIFrom 30013001.2
salt PyPIFrom 30013001.2
salt PyPIFrom 30023002.1
salt PyPIFrom 30023002.1

Products include Debian Debian Linux, Saltstack Salt.

How do I fix CVE-2020-17490?

Upgrade salt to a fixed version for your release line: 2015.8.10, 2015.8.13, 2016.3.4 or 2016.3.6.

Is CVE-2020-17490 being exploited?

There is no known exploitation of CVE-2020-17490 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as GHSA-3c56-vx6v-q5vh, PYSEC-2020-105, UBUNTU-CVE-2020-17490.

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