CVE-2023-24509 Privilege escalation in Arista EOS

Critical 9.3 Published 13 Apr 2023 Updated 7 Feb 2025

An unprivileged user can escalate to root on standby supervisors in Arista EOS devices configured with RPR or SSO redundancy.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-24509?

CVE-2023-24509 is a critical vulnerability in Arista EOS, published on 13 Apr 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

On affected modular platforms running Arista EOS equipped with both redundant supervisor modules and having the redundancy protocol configured with RPR or SSO, an existing unprivileged user can login to the standby supervisor as a root user, leading to a privilege escalation. Valid user credentials are required in order to exploit this vulnerability.

Weakness: CWE-269

Which versions are affected by CVE-2023-24509?

It affects 1 product.

Products include Arista Eos.

How do I fix CVE-2023-24509?

No fix has been published for CVE-2023-24509 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-24509 being exploited?

There is no known exploitation of CVE-2023-24509 in the wild and no public exploit code.

Sources

Also known as GHSA-w53j-gpf9-387j.