Auth bypass in Cisco Unified Contact Center Enterprise

CVE-2023-20088

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.

EPSS: 0.008 (54.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-20088?
CVE-2023-20088 is a medium-severity vulnerability in Cisco Unified Contact Center Enterprise, classified under Improper Authorization. CVSS score: 5.3/10. Published 2023-03-03.
How severe is CVE-2023-20088?
Medium severity. CVSS v3 base score is 5.3 out of 10.