CVE-2023-20191

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 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 .
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:7.10:*:*:*:*:*:*:*

History

21 Nov 2024, 07:40

Type Values Removed Values Added
CVSS v2 : unknown
v3 : 7.5
v2 : unknown
v3 : 5.8
References () https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dnx-acl-PyzDkeYF - Vendor Advisory () https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dnx-acl-PyzDkeYF - Vendor Advisory

25 Oct 2023, 20:42

Type Values Removed Values Added
CPE cpe:2.3:h:cisco:ios_xr:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ios_xr:7.10:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xr:7.10:*:*:*:*:*:*:*

19 Sep 2023, 15:50

Type Values Removed Values Added
References (MISC) https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dnx-acl-PyzDkeYF - (MISC) https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dnx-acl-PyzDkeYF - Vendor Advisory
CPE cpe:2.3:h:cisco:ios_xr:*:*:*:*:*:*:*:*
cpe:2.3:h:cisco:ios_xr:7.10:*:*:*:*:*:*:*
CWE CWE-863
First Time Cisco
Cisco ios Xr
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.5

13 Sep 2023, 17:27

Type Values Removed Values Added
New CVE

Information

Published : 2023-09-13 17:15

Updated : 2024-11-21 07:40


NVD link : CVE-2023-20191

Mitre link : CVE-2023-20191

CVE.ORG link : CVE-2023-20191


JSON object : View

Products Affected

cisco

  • ios_xr
CWE
CWE-284

Improper Access Control

CWE-863

Incorrect Authorization