CVE-2021-3187 : Vulnerability Insights and Analysis
Discover the details of CVE-2021-3187, a security flaw in BeyondTrust Privilege Management for Mac allowing privilege escalation via a malicious script.
A vulnerability has been found in BeyondTrust Privilege Management for Mac, potentially allowing an authenticated, unprivileged user to elevate privileges through a malicious script.
Understanding CVE-2021-3187
This section provides insights into the nature of the CVE-2021-3187 vulnerability.
What is CVE-2021-3187?
CVE-2021-3187 is a security flaw in BeyondTrust Privilege Management for Mac versions before 5.7. It enables an authenticated, unprivileged user to escalate privileges by executing a malicious script during install time.
The Impact of CVE-2021-3187
The vulnerability affects macOS versions before 10.15.5 and Security Update 2020-003 on Mojave and High Sierra. Later macOS versions are not vulnerable.
Technical Details of CVE-2021-3187
In this section, we delve into the technical specifics of CVE-2021-3187.
Vulnerability Description
The issue allows an attacker to run a script as root from a temporary directory during installation, resulting in privilege escalation.
Affected Systems and Versions
BeyondTrust Privilege Management for Mac versions before 5.7 are impacted, along with macOS versions earlier than 10.15.5 and certain updates on Mojave and High Sierra.
Exploitation Mechanism
An authenticated, unprivileged user can leverage this vulnerability by executing a malicious script during the installation process to gain elevated privileges.
Mitigation and Prevention
Protect your system from CVE-2021-3187 with the following measures.
Immediate Steps to Take
Ensure you have updated BeyondTrust Privilege Management for Mac to version 5.7 or later. Users should also update their macOS to a non-vulnerable version.
Long-Term Security Practices
Implement regular security training for users to recognize and avoid potential threats. Enforce the principle of least privilege to limit access rights.
Patching and Updates
Stay vigilant for security updates and patches released by BeyondTrust for Privilege Management for Mac to address vulnerabilities.