CVE-2023-20191 (ios_xr) | allinfosecnews.com

Sept. 13, 2023, 5:15 p.m. |

National Vulnerability Database web.nvd.nist.gov

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 incomplete support for this feature. An attacker could exploit this vulnerability by attempting to send traffic through an affected device. A successful exploit could allow the attacker to bypass an ACL on the affected device.

There are workarounds that address this vulnerability.

This …

access access control acl attacker bypass cisco cisco ios cisco ios xr control cve device exploit feature ios list mpls send software support traffic unauthenticated vulnerability

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