CVE-2024-20510 Auth bypass in Cisco IOS XE Software
Unauthenticated adjacent attackers can bypass pre-authentication ACLs on Cisco IOS XE Wireless Controllers, gaining unauthorized access to trusted networks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-20510?
CVE-2024-20510 is a medium-severity authentication bypass vulnerability in Cisco Ios Xe, published on 25 Sep 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the Central Web Authentication (CWA) feature of Cisco IOS XE Software for Wireless Controllers could allow an unauthenticated, adjacent attacker to bypass the pre-authentication access control list (ACL), which could allow access to network resources before user authentication. This vulnerability is due to a logic error when activating the pre-authentication ACL that is received from the authentication, authorization, and accounting (AAA) server. An attacker could exploit this vulnerability by connecting to a wireless network that is configured for CWA and sending traffic through an affected device that should be denied by the configured ACL before user authentication. A successful exploit could allow the attacker to bypass configured ACL protections on the affected device before the user authentication is completed, allowing the attacker to access trusted networks that the device might be protecting.
Weakness: CWE-863
Which versions are affected by CVE-2024-20510?
It affects 1 product.
Products include Cisco Ios Xe.
How do I fix CVE-2024-20510?
No fix has been published for CVE-2024-20510 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2024-20510 being exploited?
There is no known exploitation of CVE-2024-20510 in the wild and no public exploit code.
Other vulnerabilities in Cisco Ios Xe
- CVE-2023-20198 Cisco IOS XE Web UI Privilege Escalation
- CVE-2018-0151 Cisco IOS Software and Cisco IOS XE Software Quality of Service Remote Code Execution
- CVE-2023-20273 Cisco IOS XE Web UI Command Injection
- CVE-2025-20188 Hardcoded credentials in Cisco IOS XE Software
- CVE-2021-34770 Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Remote Code Execution Vulnerability
Sources
Also known as GHSA-pp73-8587-cg75.