CVE-2021-30924 : Exploit Details and Defense Strategies
Learn about CVE-2021-30924, a denial of service vulnerability in macOS that allows remote attackers to trigger unexpected device restarts. Find out about the impact, affected systems, exploitation mechanism, and mitigation steps.
A denial of service vulnerability has been identified and addressed in macOS. This vulnerability can be exploited by a remote attacker to cause unexpected device restarts.
Understanding CVE-2021-30924
This CVE is related to a denial of service issue in macOS that allows remote attackers to trigger device restarts. The vulnerability has been fixed in macOS Monterey 12.0.1.
What is CVE-2021-30924?
CVE-2021-30924 is a denial of service vulnerability in macOS that enables remote attackers to cause devices to restart unexpectedly. The issue has been resolved in macOS Monterey 12.0.1.
The Impact of CVE-2021-30924
The impact of this CVE is the potential disruption caused by remote attackers forcing devices to restart. It can lead to downtime and interruptions in device functionality.
Technical Details of CVE-2021-30924
This section delves into the technical aspects of the vulnerability.
Vulnerability Description
The vulnerability involves a flaw in the state handling mechanism of macOS, which can be exploited by remote attackers to trigger unexpected device restarts.
Affected Systems and Versions
macOS versions prior to 12.0 are vulnerable to this issue. Specifically, versions less than 12.0 are affected.
Exploitation Mechanism
Remote attackers can exploit this vulnerability by sending specially crafted requests to the target device, causing it to enter a state where an unexpected restart is triggered.
Mitigation and Prevention
Protecting systems from CVE-2021-30924 involves taking immediate steps and adopting long-term security practices.
Immediate Steps to Take
It is recommended to update affected macOS systems to version 12.0.1 or newer to prevent exploitation of this vulnerability. Additionally, network security measures should be implemented to restrict unauthorized access.
Long-Term Security Practices
Maintaining up-to-date software, implementing network security controls, and conducting regular security audits are essential for mitigating risks associated with CVE-2021-30924.
Patching and Updates
Regularly check for security updates from Apple and apply patches promptly to ensure that known vulnerabilities are mitigated.