CVE-2022-20750 Cisco Redundancy Configuration Manager for Cisco StarOS Software TCP Denial of Service Vulnerability
Unauthenticated remote attackers can cause a denial of service in Cisco RCM by sending malformed TCP data, requiring a software patch.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-20750?
CVE-2022-20750 is a medium-severity denial of service vulnerability in Cisco Redundancy Configuration Manager, published on 17 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the checkpoint manager implementation of Cisco Redundancy Configuration Manager (RCM) for Cisco StarOS Software could allow an unauthenticated, remote attacker to cause the checkpoint manager process to restart upon receipt of malformed TCP data. This vulnerability is due to improper input validation of an ingress TCP packet. An attacker could exploit this vulnerability by sending crafted TCP data to the affected application. A successful exploit could allow the attacker to cause a denial of service (DoS) condition due to the checkpoint manager process restarting.
Weakness: CWE-20
Which versions are affected by CVE-2022-20750?
It affects 1 product.
Products include Cisco Redundancy Configuration Manager.
How do I fix CVE-2022-20750?
No fix has been published for CVE-2022-20750 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-2022-20750 being exploited?
There is no known exploitation of CVE-2022-20750 in the wild and no public exploit code.
Sources
Also known as GHSA-xjx4-77rq-qjf8.