CVE-2023-20259

Summary

A vulnerability in an API endpoint of multiple Cisco Unified Communications Products could allow an unauthenticated, remote attacker to cause high CPU utilization, which could impact access to the web-based management interface and cause delays with call processing. This API is not used for device management and is unlikely to be used in normal operations of the device. This vulnerability is due to improper API authentication and incomplete validation of the API request. An attacker could exploit this vulnerability by sending a crafted HTTP request to a specific API on the device. A successful exploit could allow the attacker to cause a denial of service (DoS) condition due to high CPU utilization, which could negatively impact user traffic and management access. When the attack stops, the device will recover without manual intervention.

Affected Software

VendorProductVersion RangeStatus
CiscoCisco Emergency Responder12.5(1)SU7affected
CiscoCisco Emergency Responder14affected
CiscoCisco Emergency Responder14SU3affected
CiscoCisco Unity Connection14SU3affected
CiscoCisco Unified Communications Manager12.5(1)SU7affected
CiscoCisco Unified Communications Manager12.5(1)SU7aaffected
CiscoCisco Unified Communications Manager14SU3affected
CiscoCisco Unified Communications Manager IM and Presence Service12.5(1)SU7affected
CiscoCisco Unified Communications Manager IM and Presence Service14SU3affected
CiscoCisco Prime Collaboration Deployment14SU3affected

Weaknesses

  • CWE-400: Uncontrolled Resource Consumption

ADP Enrichment

CVE Program Container

Additional References

References