CVE-2021-46850 : What You Need to Know
CVE-2021-46850 is a vulnerability allowing command injection in myVesta and Vesta Control Panel versions before 0.9.8-26-43. Learn about the impact, technical details, and mitigation steps.
myVesta Control Panel before 0.9.8-26-43 and Vesta Control Panel before 0.9.8-26 are vulnerable to command injection, allowing remote authenticated users to execute arbitrary commands.
Understanding CVE-2021-46850
What is CVE-2021-46850?
CVE-2021-46850 is a vulnerability in myVesta Control Panel versions prior to 0.9.8-26-43 and Vesta Control Panel versions prior to 0.9.8-26. This vulnerability allows authenticated administrative users to run arbitrary commands through the v_sftp_license parameter in HTTP POST requests to the /edit/server endpoint.
The Impact of CVE-2021-46850
This vulnerability can be exploited by remote attackers with administrative privileges, leading to unauthorized command execution on the affected server, potentially compromising the system's confidentiality and integrity.
Technical Details of CVE-2021-46850
Vulnerability Description
The vulnerability in myVesta and Vesta Control Panels before the mentioned versions enables command injection by manipulating the v_sftp_license parameter in specific HTTP requests.
Affected Systems and Versions
- Vendor: Not applicable
- Product: Not applicable
- Versions: All versions before myVesta Control Panel 0.9.8-26-43 and Vesta Control Panel 0.9.8-26
Exploitation Mechanism
- Attackers can exploit this vulnerability by sending specially crafted HTTP POST requests to the /edit/server endpoint with a manipulated v_sftp_license parameter.
Mitigation and Prevention
Immediate Steps to Take
- Immediately update myVesta and Vesta Control Panels to versions 0.9.8-26-43 or later to mitigate the vulnerability.
- Restrict access to administrative functionalities to authorized users only.
Long-Term Security Practices
- Regularly monitor and audit network traffic and access logs for any suspicious activities.
- Employ strong authentication mechanisms and privilege controls to limit unauthorized access.
Patching and Updates
- Stay updated with security advisories and apply patches provided by the vendor to address known vulnerabilities.