CVE-2021-30740 : What You Need to Know
Learn about CVE-2021-30740, a logic issue in macOS, tvOS, watchOS, iOS, and iPadOS by Apple, allowing arbitrary code execution with kernel privileges. Take immediate action to update for protection.
A logic issue was addressed with improved validation in Apple's macOS, tvOS, watchOS, iOS, and iPadOS. This security flaw allows a malicious application to execute arbitrary code with kernel privileges.
Understanding CVE-2021-30740
This CVE pertains to a logic issue in Apple's operating systems that could be exploited by a malicious application to gain kernel privileges.
What is CVE-2021-30740?
The CVE-2021-30740 refers to a logic issue in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6, and iPadOS 14.6, allowing unauthorized execution of arbitrary code with kernel privileges.
The Impact of CVE-2021-30740
The vulnerability enables a malicious application to run code with elevated privileges, potentially leading to unauthorized access, data theft, or system manipulation.
Technical Details of CVE-2021-30740
The vulnerability arises due to insufficient validation control in the affected Apple operating systems, creating a security loophole for malicious activities.
Vulnerability Description
The flaw allows untrusted apps to execute code at a kernel level, providing extensive access within the system, endangering data security and system stability.
Affected Systems and Versions
Apple devices running macOS versions earlier than 11.4, tvOS versions lower than 14.6, watchOS versions older than 7.5, iOS versions preceding 14.6, and iPadOS versions before 14.6 are vulnerable.
Exploitation Mechanism
Attackers can leverage the logic flaw to craft malicious applications capable of executing unauthorized instructions at a privileged level, compromising system integrity.
Mitigation and Prevention
To safeguard systems from CVE-2021-30740, immediate action and long-term security practices are crucial.
Immediate Steps to Take
Users are advised to update their Apple devices to the latest versions of macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6, and iPadOS 14.6 to mitigate the vulnerability.
Long-Term Security Practices
Implementing strong security measures, such as avoiding suspicious apps and regularly updating systems, can fortify device security against potential threats.
Patching and Updates
Regularly installing software patches and security updates provided by Apple is essential to address vulnerabilities and strengthen system defenses.