CVE-2022-20769 Cisco Wireless LAN Controller AireOS Software FIPS Mode Denial of Service Vulnerability
An unauthenticated adjacent attacker can cause a denial of service on Cisco Wireless LAN Controllers by sending crafted packets when FIPS mode is enabled.
- 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-2022-20769?
CVE-2022-20769 is a high-severity denial of service vulnerability in Cisco Wireless Lan Controller Software, published on 30 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the authentication functionality of Cisco Wireless LAN Controller (WLC) AireOS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient error validation. An attacker could exploit this vulnerability by sending crafted packets to an affected device. A successful exploit could allow the attacker to cause the wireless LAN controller to crash, resulting in a DoS condition. Note: This vulnerability affects only devices that have Federal Information Processing Standards (FIPS) mode enabled.
Weakness: CWE-787
Which versions are affected by CVE-2022-20769?
It affects 1 product.
Products include Cisco Wireless Lan Controller Software.
How do I fix CVE-2022-20769?
No fix has been published for CVE-2022-20769 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2022-20769 being exploited?
There is no known exploitation of CVE-2022-20769 in the wild and no public exploit code.
Other vulnerabilities in Cisco Wireless Lan Controller Software
Sources
Also known as GHSA-3phq-3jhx-rrhw.