CVE-2023-20191
published 2023-09-13CVE-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…
PriorityP347high7.5CVSS 3.1
AVNACLPRNUINSUCNIHAN
EPSS
0.46%
37.3th percentile
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 .
Affected
35 ranges· showing 25
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CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
vendor_cisco5.8MEDIUM
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Cisco
Cisco IOS XR Software Access Control List Bypass Vulnerability
vendor_cisco·2023-09-13·CVSS 5.8
CVE-2023-20191 [MEDIUM] CWE-284 Cisco IOS XR Software Access Control List Bypass Vulnerability
Cisco IOS XR Software Access Control List Bypass Vulnerability
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.
Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability.
This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-dnx-acl-PyzDke
Cisco
Cisco IOS XR Software Access Control List Bypass Vulnerability
vendor_cisco·CVSS 3.1
CVE-2023-20191 Cisco IOS XR Software Access Control List Bypass Vulnerability
CVE-2023-20191: Cisco IOS XR Software Access Control List Bypass Vulnerability
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. Cisco has released software updates that address this vulnerability. There are
CVSS: 3.1
CWE: CWE-284, CWE-284
Bug IDs: CSCwe63504, CSCwe63504, CSCwe63504, CSCwe63504, CSCwe63504
GHSA
GHSA-5hxg-4c73-j4wf: A vulnerability in the access control list (ACL) processing on MPLS interfaces in the ingress direction of Cisco IOS XR Software could allow an unauth
ghsa_unreviewed·2023-09-13
CVE-2023-20191 [HIGH] CWE-284 GHSA-5hxg-4c73-j4wf: A vulnerability in the access control list (ACL) processing on MPLS interfaces in the ingress direction of Cisco IOS XR Software could allow an unauth
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 P
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2023-09-13
Published