⚠ Actively exploited
Added to CISA KEV on 2021-11-03. Federal agencies required to patch by 2022-05-03. Required action: Apply updates per vendor instructions..

CVE-2020-3161

Severity
9.8CRITICAL
EPSS
77.3%
top 1.02%
CISA KEV
KEV
Added 2021-11-03
Due 2022-05-03
Exploit
Exploited in wild
Active exploitation observed
Timeline
PublishedApr 15
KEV addedNov 3
KEV dueMay 3
Latest updateMay 24
CISA Required Action: Apply updates per vendor instructions.

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 cod

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages14 packages

🔴Vulnerability Details

3
GHSA
GHSA-74vv-6p4c-8fhj: A vulnerability in the web server for Cisco IP Phones could allow an unauthenticated, remote attacker to execute code with root privileges or cause a2022-05-24
CVEList
Cisco IP Phones Web Server Remote Code Execution and Denial of Service Vulnerability2020-04-15
VulnCheck
Cisco IP Phones Web Server Remote Code Execution and Denial-of-Service Vulnerability2020

💥Exploits & PoCs

1
Exploit-DB
Cisco IP Phone 11.7 - Denial of service (PoC)2020-04-17

🔍Detection Rules

1
Suricata
ET EXPLOIT Cisco IP Phones Web Server Vulnerability (CVE-2020-3161)2021-10-28

📋Vendor Advisories

2
CISA
Cisco IP Phones Web Server Remote Code Execution and Denial-of-Service Vulnerability2021-11-03
Cisco
Cisco IP Phones Web Server Remote Code Execution and Denial of Service Vulnerability2020-04-15