Cisco Industrial Ethernet Switch ACL Bypass via REP Change (CVE-2024-20465)
CVE-2024-20465 Published on September 25, 2024
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.
Vulnerability Analysis
CVE-2024-20465 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.
Weakness Type
What is an Authorization Vulnerability?
The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
CVE-2024-20465 has been classified to as an Authorization vulnerability or weakness.
Products Associated with CVE-2024-20465
You can be notified by email with stack.watch whenever vulnerabilities like CVE-2024-20465 are published in Cisco Internetwork Operating System (IOS):
Affected Versions
Cisco IOS:- Version 15.2(8)E2 is affected.
- Version 15.2(8)E3 is affected.
- Version 15.2(8)E4 is affected.
- Version 15.2(8)E5 is affected.
- Version 15.2\(8\)e2 is affected.
- Version 15.2\(8\)e3 is affected.
- Version 15.2\(8\)e4 is affected.
- Version 15.2\(8\)e5 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.