CVE-2024-20322 Auth bypass in Cisco IOS XR Software
Unauthenticated remote attackers can bypass Access Control Lists on Pseudowire interfaces in Cisco IOS XR, accessing protected resources.
- 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-2024-20322?
CVE-2024-20322 is a medium-severity authentication bypass vulnerability in Cisco Ios Xr, published on 13 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 access control list (ACL) processing on Pseudowire interfaces in the ingress direction of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability is due to improper assignment of lookup keys to internal interface contexts. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to access resources behind the affected device that were supposed to be protected by a configured ACL.
Weakness: CWE-284
Which versions are affected by CVE-2024-20322?
It affects 1 product.
Products include Cisco Ios Xr.
How do I fix CVE-2024-20322?
No fix has been published for CVE-2024-20322 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2024-20322 being exploited?
There is no known exploitation of CVE-2024-20322 in the wild and no public exploit code.
Other vulnerabilities in Cisco Ios Xr
- CVE-2020-3118 Cisco IOS XR Software Discovery Protocol Format String
- CVE-2020-3569 Cisco IOS XR Software DVMRP Memory Exhaustion
- CVE-2020-3566 Cisco IOS XR Software DVMRP Memory Exhaustion
- CVE-2010-3035 Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service
- CVE-2022-20821 Cisco IOS XR Open Port
Sources
Also known as GHSA-4wpx-q9gv-7mh7.