nginxWebUI runCmd Remote Code Execution Scanner
Detects 'Remote Code Execution (RCE)' vulnerability in nginxWebUI affects v. ≤ 3.5.0. This scanner checks for the presence of RCE vulnerability allowing unauthorized command execution.
Short Info
Level
Critical
Single Scan
Single Scan
Can be used by
Asset Owner
Estimated Time
10 seconds
Time Interval
2 weeks 6 hours
Scan only one
URL
Toolbox
-
nginxWebUI is a user interface for managing NGINX web servers. It is used by server administrators to streamline the management of server configurations and operations without manually editing configuration files. The tool provides an accessible interface that can simplify otherwise complicated setup tasks, making it popular for use in both small businesses and large enterprise environments. Over its iterations, nginxWebUI has provided functionalities to enhance operational efficiency. Given its role, ensuring the security of such management tools is paramount as any vulnerability can have widespread implications. It manages sensitive aspects of server configurations, necessitating rigorous security measures to prevent unauthorized access and modifications.
Remote Code Execution (RCE) is a significant vulnerability due to its potential impact. RCE enables attackers to execute arbitrary code on a targeted system, bypassing existing security measures. In the context of nginxWebUI, this could mean that an attacker can manipulate server configurations, access sensitive data, or disrupt service functionalities. The RCE vulnerability often arises from improper validation of user inputs, allowing attackers to inject and execute malicious commands. Being an unauthorized operation, it exploits the trust within a system meant to be secure from unvalidated control inputs. Detecting and patching RCE vulnerabilities is crucial to maintain system integrity and security.
The vulnerability in nginxWebUI’s runCmd function is primarily due to incomplete input validation. The runCmd is designed to execute specific commands intended for administrative purposes. In the vulnerable versions, the endpoint does not adequately filter or validate data supplied by users before execution. This lapse allows attackers to send specially crafted requests that manipulate the input validation process, leading to arbitrary code execution. Located at the path "/AdminPage/conf/runCmd?cmd=id", this endpoint processes inputs without ample security checks, creating a high-risk scenario for remote command execution. The vulnerability impacts servers running vulnerable versions, emphasizing the need for swift patching and security enhancements.
If exploited, this vulnerability could enable attackers to execute arbitrary commands on affected servers. Such actions could result in unauthorized data access, making it possible to extract sensitive information from the server. In some cases, it could lead to data modification or deletion, potentially disrupting business operations or leading to data loss. Unauthorized command execution may also enable attackers to install malicious software, create backdoor entries, or further exploit the network environment. The presence of this vulnerability inherently degrades the system's trust, necessitating immediate attention to safeguard sensitive operations.
REFERENCES
