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 .
References
| Link | Resource |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dnx-acl-PyzDkeYF | Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
25 Oct 2023, 20:42
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | 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 - 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 : v3 : |
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 : 2024-02-28 20:33
NVD link : CVE-2023-20191
Mitre link : CVE-2023-20191
CVE.ORG link : CVE-2023-20191
JSON object : View
Products Affected
cisco
- ios_xr