CVE-2021-30462 : Vulnerability Insights and Analysis
Learn about CVE-2021-30462, a privilege escalation flaw in VestaCP allowing admin users to gain root access without a password. Understand the impact, technical details, and mitigation steps.
VestaCP through 0.9.8-24 allows the admin user to escalate privileges to root due to a Sudo configuration that does not require a password for running /usr/local/vesta/bin scripts.
Understanding CVE-2021-30462
This CVE describes a privilege escalation vulnerability in VestaCP versions up to 0.9.8-24, enabling admin users to gain root privileges.
What is CVE-2021-30462?
CVE-2021-30462 pertains to a specific flaw in VestaCP that permits admin users to escalate their privileges to root without the need for a password, potentially leading to unauthorized activities.
The Impact of CVE-2021-30462
The impact of this vulnerability is severe as it allows unauthorized admin users to gain full control over the system, posing a significant security risk to the integrity and confidentiality of data.
Technical Details of CVE-2021-30462
This section delves into the specifics of the vulnerability, affected systems, and how exploitation can occur.
Vulnerability Description
The vulnerability arises from the lack of password requirement in the Sudo configuration for executing scripts in /usr/local/vesta/bin, enabling admin users to execute commands with root privileges.
Affected Systems and Versions
VestaCP versions up to 0.9.8-24 are affected by this vulnerability, putting instances of the control panel at risk of exploitation.
Exploitation Mechanism
By leveraging the Sudo configuration oversight, admin users can execute scripts in /usr/local/vesta/bin without a password, allowing them to escalate privileges to root.
Mitigation and Prevention
Discover the steps you can take to mitigate the vulnerabilities associated with CVE-2021-30462 and secure your system effectively.
Immediate Steps to Take
Immediately restrict access to vulnerable areas, review and update Sudo configurations, and monitor for any suspicious activity or unauthorized privilege escalations.
Long-Term Security Practices
Implement strong password policies, regular security audits, and user privilege reviews to prevent similar vulnerabilities from being exploited in the future.
Patching and Updates
Ensure that you promptly apply patches and updates released by VestaCP to address CVE-2021-30462 and eliminate the privilege escalation risk.