Command Execution Vulnerability in Cisco Small Business Routers
CVE-2023-20118

7.2HIGH

Key Information:

Vendor: Cisco
Status: Cisco Small Business Rv Series Router Firmware
Vendor: CVE Published:; 13 April 2023

Badges

💰 Ransomware👾 Exploit Exists🦅 CISA Reported📰 News Worthy

What is CVE-2023-20118?

A vulnerability exists in the web-based management interface of several Cisco Small Business Routers that could allow an authenticated remote attacker to execute arbitrary commands. This flaw stems from improper validation of user input in HTTP packets. By sending a specially crafted HTTP request, an attacker with valid administrative credentials can potentially exploit this vulnerability to gain root-level access, compromising sensitive data and device functionality. Cisco will not release updates to rectify this issue, heightening the risk for users of these affected routers.

CISA has reported CVE-2023-20118

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2023-20118 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace as recent news articles suggest the vulnerability is being used by ransomware groups.

The CISA's recommendation is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.