CVE-2020-3161

Known Exploited Vulnerability

Cisco IP Phones Web Server Remote Code Execution and Denial-of-Service Vulnerability

Vendor / product: Cisco / Cisco IP Phones

Description

A vulnerability in the web server for Cisco IP Phones could allow an unauthenticated, remote attacker to execute code with root privileges or cause a reload of an affected IP phone, resulting in a denial of service (DoS) condition. The vulnerability is due to a lack of proper input validation of HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web server of a targeted device. A successful exploit could allow the attacker to remotely execute code with root privileges or cause a reload of an affected IP phone, resulting in a DoS condition.

Weakness classification

• CWE-20: Improper Input Validation

Primary references

• psirt@cisco.com — Exploit, Third Party Advisory, VDB Entry
• psirt@cisco.com — Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory, VDB Entry
• af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory
• 134c704f-9b21-4f2e-91b3-4a467353bcc0 — US Government Resource