Cisco Finesse Reverse Proxy DoS via Improper nginx IP Filtering
CVE-2023-20088 Published on March 3, 2023
Cisco Finesse Reverse Proxy VPN-less Access to Finesse Desktop Denial of Service Vulnerability
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.
Vulnerability Analysis
CVE-2023-20088 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a small impact on availability.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
CVE-2023-20088 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2023-20088
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Affected Versions
Cisco Unified Contact Center Enterprise Version n/a is affected by CVE-2023-20088Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.