CVE-2023-20088 Cisco Finesse Reverse Proxy VPN-less Access to Finesse Desktop Denial of Service Vulnerability
Unauthenticated remote attackers can cause a denial of service in Cisco Finesse by exploiting improper IP filtering in the VPN-less reverse proxy configuration.
- 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-2023-20088?
CVE-2023-20088 is a medium-severity denial of service vulnerability in Cisco Unified Contact Center Enterprise, published on 3 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the nginx configurations that are provided as part of the VPN-less reverse proxy for Cisco Finesse could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition for new and existing users who are connected through a load balancer. This vulnerability is due to improper IP address filtering by the reverse proxy. An attacker could exploit this vulnerability by sending a series of unauthenticated requests to the reverse proxy. A successful exploit could allow the attacker to cause all current traffic and subsequent requests to the reverse proxy through a load balancer to be dropped, resulting in a DoS condition.
Weakness: CWE-285
Which versions are affected by CVE-2023-20088?
It affects 1 product.
Products include Cisco Finesse.
How do I fix CVE-2023-20088?
No fix has been published for CVE-2023-20088 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-2023-20088 being exploited?
There is no known exploitation of CVE-2023-20088 in the wild and no public exploit code.
Other vulnerabilities in Cisco Unified Contact Center Enterprise
Sources
Also known as GHSA-6v2h-cxg9-wpjg.