CVE-2018-16883 Information disclosure in sssd

Low 2.5 Published 19 Dec 2018 Updated 5 Aug 2024

Local attackers can access sensitive user directory information via the infopipe due to improper access restrictions in SSSD.

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-2018-16883?

CVE-2018-16883 is a low-severity vulnerability in [UNKNOWN] sssd, published on 19 Dec 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

sssd versions from 1.13.0 to before 2.0.0 did not properly restrict access to the infopipe according to the "allowed_uids" configuration parameter. If sensitive information were stored in the user directory, this could be inadvertently disclosed to local attackers.

Weakness: CWE-200

Which versions are affected by CVE-2018-16883?

It affects 1 product.

Products include Fedoraproject Sssd.

How do I fix CVE-2018-16883?

Upgrade to a fixed version.

Is CVE-2018-16883 being exploited?

There is no known exploitation of CVE-2018-16883 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2018-16883, GHSA-4qf7-r2vx-jf49, UBUNTU-CVE-2018-16883.