CVE-2021-30827 : Vulnerability Insights and Analysis
Learn about CVE-2021-30827, a permissions issue in macOS that allows a local attacker to elevate privileges. Understand the impact, technical details, and mitigation steps.
A permissions issue in macOS has been identified and addressed by Apple in Security Update 2021-005 Catalina and macOS Big Sur 11.6. This vulnerability could allow a local attacker to escalate their privileges.
Understanding CVE-2021-30827
This CVE details a permissions issue in macOS that could be exploited by a local attacker to elevate their privileges.
What is CVE-2021-30827?
CVE-2021-30827 is a vulnerability in macOS that allows a local attacker to escalate their privileges by exploiting a permissions issue. Apple has released Security Update 2021-005 Catalina and macOS Big Sur 11.6 to fix this issue.
The Impact of CVE-2021-30827
The impact of this vulnerability is that a local attacker could potentially elevate their privileges on the affected macOS systems, leading to unauthorized access and control.
Technical Details of CVE-2021-30827
This section provides technical details regarding the vulnerability.
Vulnerability Description
The vulnerability involves a permissions issue in macOS that has been addressed by Apple through improved permission validation.
Affected Systems and Versions
- Product: macOS
- Vendor: Apple
- Affected Versions: macOS versions less than 11.6 and versions less than 2021
Exploitation Mechanism
A local attacker can exploit the permissions issue to elevate their privileges on vulnerable macOS systems.
Mitigation and Prevention
To mitigate the risk associated with CVE-2021-30827, immediate action and long-term security practices are recommended.
Immediate Steps to Take
- Apply Security Update 2021-005 Catalina or macOS Big Sur 11.6 as soon as possible.
- Monitor system logs and user activities for any signs of unauthorized privilege escalation.
Long-Term Security Practices
- Regularly update your macOS systems with the latest security patches from Apple.
- Implement least privilege access controls to limit the impact of potential privilege escalation attacks.
Patching and Updates
Stay informed about security updates and advisories from Apple to ensure your systems are protected against known vulnerabilities.