CVE-2021-30906 Explained : Impact and Mitigation
Learn about CVE-2021-30906, a privilege escalation vulnerability impacting iOS and macOS. Find out affected systems, exploitation details, and mitigation steps.
This CVE-2021-30906 vulnerability affects multiple Apple products, including iOS, iPadOS, and macOS versions. It allows a local attacker to escalate privileges. Apple has released fixes in the affected versions.
Understanding CVE-2021-30906
This section provides insights into the impact, technical details, and mitigation strategies related to CVE-2021-30906.
What is CVE-2021-30906?
CVE-2021-30906 is a security vulnerability in Apple's iOS, iPadOS, and macOS operating systems that enables a local attacker to elevate their privileges.
The Impact of CVE-2021-30906
The vulnerability could be exploited by a local attacker to gain elevated privileges on the affected devices, potentially leading to unauthorized access and control.
Technical Details of CVE-2021-30906
Let's delve deeper into the description, affected systems, and exploitation mechanism of CVE-2021-30906.
Vulnerability Description
The issue allows a local attacker to exploit certain checks improperly, leading to privilege escalation on the impacted Apple devices.
Affected Systems and Versions
- iOS and iPadOS versions below 15.1
- macOS versions below 12.0, 11.6, 8.1, and 15.1
Exploitation Mechanism
An attacker with local access to the affected systems can manipulate the vulnerability to gain elevated privileges.
Mitigation and Prevention
To safeguard your systems and data, consider the following immediate steps and long-term security practices.
Immediate Steps to Take
- Update the affected Apple devices to the fixed versions: iOS 15.1, iPadOS 15.1, macOS Monterey 12.0.1, tvOS 15.1, watchOS 8.1, macOS Big Sur 11.6.1.
- Restrict access to vulnerable systems to authorized personnel only.
Long-Term Security Practices
- Regularly monitor for security updates and apply them promptly.
- Implement strong access controls and least privilege principles to limit potential attack vectors.
Patching and Updates
Stay informed about security bulletins and advisories from Apple to ensure timely patching of vulnerabilities.