CVE-2020-7267 : Vulnerability Insights and Analysis
Learn about CVE-2020-7267, a Privilege Escalation vulnerability in McAfee VirusScan Enterprise (VSE) for Linux allowing local users to delete files via symbolic links manipulation. Find mitigation steps and affected versions.
A Privilege Escalation vulnerability in McAfee VirusScan Enterprise (VSE) for Linux prior to 2.0.3 Hotfix 2635000 allows local users to delete files they would not have access to by manipulating symbolic links.
Understanding CVE-2020-7267
This CVE involves a vulnerability in McAfee VirusScan Enterprise (VSE) for Linux that enables local users to escalate privileges through symbolic links manipulation.
What is CVE-2020-7267?
The vulnerability in McAfee VirusScan Enterprise (VSE) for Linux before version 2.0.3 Hotfix 2635000 allows local users to delete files they would otherwise not have access to by redirecting a McAfee delete action to unintended files using symbolic links.
The Impact of CVE-2020-7267
- CVSS Base Score: 8.8 (High Severity)
- Attack Vector: Local
- Confidentiality, Integrity, and Availability Impact: High
- Privileges Required: Low
- Scope: Changed
- Attack Complexity: Low
- User Interaction: None
Technical Details of CVE-2020-7267
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability allows local users to delete files they would not typically have access to by manipulating symbolic links to redirect McAfee delete actions.
Affected Systems and Versions
- Affected Product: McAfee VirusScan Enterprise (VSE) for Linux
- Vendor: McAfee, LLC
- Affected Version: 2.0.x (prior to 2.0.3 Hotfix 2635000)
Exploitation Mechanism
The exploitation involves running a malicious script or program on the target machine to manipulate symbolic links and redirect McAfee delete actions.
Mitigation and Prevention
Protecting systems from this vulnerability requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply the latest security patches and updates from McAfee.
- Monitor and restrict user permissions to prevent unauthorized access.
- Regularly review and audit file deletion activities.
Long-Term Security Practices
- Implement the principle of least privilege to limit user access rights.
- Conduct regular security training for users to recognize and report suspicious activities.
- Employ intrusion detection systems to identify unusual file deletion patterns.
Patching and Updates
Ensure that all systems running McAfee VirusScan Enterprise (VSE) for Linux are updated to version 2.0.3 Hotfix 2635000 or newer to mitigate the vulnerability.