CVE-2021-1786 Explained : Impact and Mitigation
Discover the impact of CVE-2021-1786, a logic vulnerability in iOS, iPadOS, macOS, watchOS, and tvOS versions less than specified. Learn mitigation steps to secure systems.
A logic issue in Apple products has been addressed, impacting iOS and iPadOS, macOS, watchOS, tvOS. Learn about the vulnerability, its impact, and mitigation strategies.
Understanding CVE-2021-1786
This CVE relates to a logic issue in multiple Apple products, potentially affecting system file integrity.
What is CVE-2021-1786?
CVE-2021-1786 is a logic issue that enables a local user to create or modify system files, posing a risk to data security.
The Impact of CVE-2021-1786
The vulnerability impacts iOS and iPadOS versions less than 14.4, macOS versions less than 11.2 and 7.3, leading to potential unauthorized file manipulations by a local user.
Technical Details of CVE-2021-1786
The vulnerability stems from a lack of proper state management, potentially granting elevated privileges to unauthorized users.
Vulnerability Description
The flaw allows local users to tamper with critical system files, which could compromise the system's integrity and confidentiality.
Affected Systems and Versions
Apple products affected include iOS and iPadOS less than version 14.4, macOS less than versions 11.2 and 7.3, presenting a risk to system security.
Exploitation Mechanism
Local users with access to systems running vulnerable versions can exploit this flaw to manipulate system files, potentially leading to unauthorized system modifications.
Mitigation and Prevention
It is crucial to take immediate action to secure affected systems and prevent unauthorized access.
Immediate Steps to Take
Update to the latest versions of macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4, and iPadOS 14.4 to mitigate the risk of unauthorized file alterations.
Long-Term Security Practices
Regularly monitor for security updates from Apple and apply patches promptly to ensure ongoing protection against potential threats.
Patching and Updates
Stay informed about security bulletins and advisories from Apple to stay up-to-date on emerging threats and protective measures.