CVE-2021-38611 Explained : Impact and Mitigation
Learn about CVE-2021-38611, a command-injection vulnerability in NASCENT RemKon Device Manager 4.0.0.0, allowing attackers to execute arbitrary commands. Discover impact, technical details, and mitigation steps.
A command-injection vulnerability in the Image Upload function of the NASCENT RemKon Device Manager 4.0.0.0 allows attackers to execute arbitrary commands, as root, via shell metacharacters in the filename parameter to assets/index.php.
Understanding CVE-2021-38611
This CVE identifies a command-injection vulnerability in the NASCENT RemKon Device Manager 4.0.0.0, enabling attackers to run malicious commands with root privileges.
What is CVE-2021-38611?
CVE-2021-38611 is a security flaw in NASCENT RemKon Device Manager 4.0.0.0 that permits threat actors to execute unauthorized commands through specially crafted inputs.
The Impact of CVE-2021-38611
This vulnerability can lead to severe consequences, allowing attackers to gain unauthorized access, escalate privileges, and compromise the confidentiality, integrity, and availability of the affected system.
Technical Details of CVE-2021-38611
The technical aspects of CVE-2021-38611 include:
Vulnerability Description
The vulnerability arises from improper input validation in the Image Upload function, enabling command injection via the filename parameter in assets/index.php.
Affected Systems and Versions
NASCENT RemKon Device Manager 4.0.0.0 is confirmed to be impacted by this vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability by inserting shell metacharacters in the filename parameter, leading to the execution of arbitrary commands.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-38611, consider the following:
Immediate Steps to Take
- Temporarily disable the Image Upload function within NASCENT RemKon Device Manager 4.0.0.0.
Long-Term Security Practices
- Regularly update the software to the latest, patched version.
- Implement proper input validation mechanisms to prevent command injections.
Patching and Updates
Ensure timely installation of security patches released by NASCENT to address the vulnerability and enhance the overall security posture of the system.