CVE-2023-20056 Cisco Access Point Software Denial of Service Vulnerability
An authenticated local attacker can cause a denial of service on Cisco access points by submitting crafted input to the management CLI.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-20056?
CVE-2023-20056 is a medium-severity command injection vulnerability in Cisco Ios Xe, published on 23 Mar 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the management CLI of Cisco access point (AP) software could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation of commands supplied by the user. An attacker could exploit this vulnerability by authenticating to a device and submitting crafted input to the affected command. A successful exploit could allow the attacker to cause an affected device to reload spontaneously, resulting in a DoS condition.
Weakness: CWE-78
Which versions are affected by CVE-2023-20056?
It affects 3 products.
Products include Cisco Aironet Access Point Software, Cisco Ios Xe, Cisco Wireless Lan Controller Software.
How do I fix CVE-2023-20056?
No fix has been published for CVE-2023-20056 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2023-20056 being exploited?
There is no known exploitation of CVE-2023-20056 in the wild and no public exploit code.
Other vulnerabilities in Cisco Ios Xe
- CVE-2017-3831 Auth bypass in Cisco Mobility Express 1800 Access Point Series
- CVE-2022-20622 Cisco Embedded Wireless Controller with Catalyst Access Points IP Flood Denial of Service Vulnerability
- CVE-2018-0234 Denial of service in Cisco Aironet 1810, 1830, and 1850 Series Access Points
- CVE-2016-1419 Denial of service in n/a
- CVE-2016-6362 Privilege escalation in n/a
Sources
Also known as GHSA-qf58-8wfv-957j.