Vulnerability · Published Oct 4, 2023 · Assigned by cisco
CVE-2023-20259
High 8.6
In plain English
A high-severity uncontrolled resource consumption in Cisco Emergency Responder from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities).
Official description
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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco Emergency Responder | 12.5(1)SU71414SU3 |
| Cisco | Cisco Unity Connection | 14SU3 |
| Cisco | Cisco Unified Communications Manager | 12.5(1)SU712.5(1)SU7a14SU3 |
| Cisco | Cisco Unified Communications Manager IM and Presence Service | 12.5(1)SU714SU3 |
| Cisco | Cisco Prime Collaboration Deployment | 14SU3 |
Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H