CVE-2024-20316 Security feature bypass in Cisco IOS XE Software

Medium 5.8 Published 27 Mar 2024 Updated 1 Aug 2024

Unauthenticated attackers can bypass IPv4 ACL protections on Cisco IOS XE devices by exploiting improper error handling during ACL updates via NETCONF or RESTCONF.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2024-20316?

CVE-2024-20316 is a medium-severity vulnerability in Cisco Ios Xe, published on 27 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the data model interface (DMI) services of Cisco IOS XE Software could allow an unauthenticated, remote attacker to access resources that should have been protected by a configured IPv4 access control list (ACL). This vulnerability is due to improper handling of error conditions when a successfully authorized device administrator updates an IPv4 ACL using the NETCONF or RESTCONF protocol, and the update would reorder access control entries (ACEs) in the updated ACL. An attacker could exploit this vulnerability by accessing resources that should have been protected across an affected device.

Weakness: CWE-390

Which versions are affected by CVE-2024-20316?

It affects 1 product.

Products include Cisco Ios Xe.

How do I fix CVE-2024-20316?

No fix has been published for CVE-2024-20316 yet. Limit exposure of the affected software until one is available.

Is CVE-2024-20316 being exploited?

There is no known exploitation of CVE-2024-20316 in the wild and no public exploit code.

All Cisco Ios Xe vulnerabilities

Sources

Also known as GHSA-6rx6-h35g-58g2.