What is the severity of CVE-2024-20315?

CVE-2024-20315 is rated as high severity due to its potential to allow unauthenticated remote attackers to bypass access control lists on MPLS interfaces.

How do I fix CVE-2024-20315?

To remediate CVE-2024-20315, affected users should update their Cisco IOS XR Software to the latest patch provided by Cisco.

What systems are affected by CVE-2024-20315?

CVE-2024-20315 primarily affects Cisco IOS XR Software deployed on MPLS interfaces.

Can CVE-2024-20315 be exploited remotely?

Yes, CVE-2024-20315 can be exploited by an unauthenticated remote attacker.

What type of vulnerability is CVE-2024-20315?

CVE-2024-20315 is an access control vulnerability that allows unauthorized access by bypassing configured access controls.

Vulnerability/
CVE-2024-20315

medium

5.8

CWE

284

13/3/2024

1/8/2024

CVE-2024-20315

First published: Wed Mar 13 2024(Updated: )

A vulnerability in the access control list (ACL) processing on MPLS 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.

Credit: ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Cisco IOS XRv 9000

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Reference Links

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-acl-bypass-RZU5NL3e

Frequently Asked Questions

What is the severity of CVE-2024-20315?
CVE-2024-20315 is rated as high severity due to its potential to allow unauthenticated remote attackers to bypass access control lists on MPLS interfaces.
How do I fix CVE-2024-20315?
To remediate CVE-2024-20315, affected users should update their Cisco IOS XR Software to the latest patch provided by Cisco.
What systems are affected by CVE-2024-20315?
CVE-2024-20315 primarily affects Cisco IOS XR Software deployed on MPLS interfaces.
Can CVE-2024-20315 be exploited remotely?
Yes, CVE-2024-20315 can be exploited by an unauthenticated remote attacker.
What type of vulnerability is CVE-2024-20315?
CVE-2024-20315 is an access control vulnerability that allows unauthorized access by bypassing configured access controls.

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