CVE-2023-20191

Summary

CVECVE-2023-20191
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-09-13 17:15:00 UTC
Updated2024-01-25 17:15:00 UTC
DescriptionA 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 advisory is part of the September 2023 release of the Cisco IOS XR Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: September 2023 Semiannual Cisco IOS XR Software Security Advisory Bundled Publication .

Risk And Classification

Problem Types: CWE-863

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Cisco Ios Xr All All All All
Hardware Cisco Ios Xr 7.10 All All All
Operating System Cisco Ios Xr All All All All
Operating System Cisco Ios Xr 7.10 All All All

References

ReferenceSourceLinkTags
Cisco IOS XR Software Access Control List Bypass Vulnerability MISC sec.cloudapps.cisco.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 317357 Cisco Internetwork Operating System (IOS) XR Software Access Control List Bypass Vulnerability (cisco-sa-dnx-acl-PyzDkeYF)
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