CVE-2023-20118: Authenticated Web Mgmt Command Exec in Cisco RV Routers
CVE-2023-20118 Published on April 13, 2023

A vulnerability in the web-based management interface of Cisco Small Business Routers RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to execute arbitrary commands on an affected device. This vulnerability is due to improper validation of user input within incoming HTTP packets. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface. A successful exploit could allow the attacker to gain root-level privileges and access unauthorized data. To exploit this vulnerability, an attacker would need to have valid administrative credentials on the affected device. Cisco has not and will not release software updates that address this vulnerability. However, administrators may disable the affected feature as described in the Workarounds ["#workarounds"] section. {{value}} ["%7b%7bvalue%7d%7d"])}]]

NVD

Known Exploited Vulnerability

This Cisco Small Business RV Series Routers Command Injection Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Multiple Cisco Small Business RV Series Routers contains a command injection vulnerability in the web-based management interface. Successful exploitation could allow an authenticated, remote attacker to gain root-level privileges and access unauthorized data.

The following remediation steps are recommended / required by March 24, 2025: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Vulnerability Analysis

CVE-2023-20118 is exploitable with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
HIGH
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
NONE

Weakness Type

What is a Command Injection Vulnerability?

The software constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

CVE-2023-20118 has been classified to as a Command Injection vulnerability or weakness.


Affected Versions

Cisco Small Business RV Series Router Firmware:

Exploit Probability

EPSS
3.36%
Percentile
87.13%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.