Detections
Analytics
Cisco IOS Software on Industrial Ethernet Series Switches Access Control List Bypass (cisco-sa-repacl-9eXgnBpD)
medium Nessus Plugin ID 216854
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Synopsis
The remote device is missing a vendor-supplied security patchDescription
According to its self-reported version, Cisco IOS is affected by a vulnerability.- A vulnerability in the access control list (ACL) programming of Cisco IOS Software running on Cisco Industrial Ethernet 4000, 4010, and 5000 Series Switches could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability is due to the incorrect handling of IPv4 ACLs on switched virtual interfaces when an administrator enables and disables Resilient Ethernet Protocol (REP). 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. (CVE-2024-20465)
Please see the included Cisco BIDs and Cisco Security Advisory for more information.
Solution
Upgrade to the relevant fixed version referenced in Cisco bug ID CSCwi85609See Also
http://www.nessus.org/u?5d42d553
Plugin Details
Severity: Medium
ID: 216854
File Name: cisco-sa-repacl-9eXgnBpD-ios.nasl
Version: 1.1
Type: combined
Family: CISCO
Published: 2/26/2025
Updated: 2/26/2025
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 1.6
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS Score Source: CVE-2024-20465
CVSS v3
Risk Factor: Medium
Base Score: 5.8
Temporal Score: 5.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:cisco:ios
Required KB Items: Host/Cisco/IOS/Version
Exploit Ease: No known exploits are available
Patch Publication Date: 9/25/2024
Vulnerability Publication Date: 9/25/2024
Reference Information
CVE: CVE-2024-20465