Improper access control

2024-03-1317:15:00

PRIOn knowledge base

www.prio-n.com

access control

vulnerability

cisco ios xr software

mpls interfaces

acl processing

unauthenticated attacker

bypass

configured acl

exploit

traffic

internal interface contexts

resources

7.3 High

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

9.1%

JSON

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.