CVE-2021-30888 : Security Advisory and Response
Discover how CVE-2021-30888 impacts iOS, iPadOS, macOS, tvOS, and watchOS. Learn about the information leakage vulnerability, affected systems, and mitigation steps.
An information leakage issue in Apple products has been addressed in this CVE. Learn more about the impact, technical details, and how to mitigate the vulnerability.
Understanding CVE-2021-30888
This CVE addresses an information leakage vulnerability in iOS, iPadOS, macOS, tvOS, and watchOS, impacting several versions of the software.
What is CVE-2021-30888?
CVE-2021-30888 is an information leakage vulnerability that could allow a malicious website to leak information via redirect behavior in Apple products like iOS, iPadOS, macOS, tvOS, and watchOS.
The Impact of CVE-2021-30888
The vulnerability could be exploited by a malicious website utilizing Content Security Policy reports to leak sensitive information through redirect behavior on affected devices.
Technical Details of CVE-2021-30888
This section provides a deeper look into the vulnerability, affected systems, and the exploitation mechanism.
Vulnerability Description
The issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, tvOS 15.1, and watchOS 8.1. A malicious website using Content Security Policy reports may be able to leak information via redirect behavior.
Affected Systems and Versions
The vulnerability affects various versions of iOS, iPadOS, and macOS, with specific versions like iOS and iPadOS versions less than 15.1 and 14.8, macOS version less than 12.0, and more.
Exploitation Mechanism
A malicious website can exploit this vulnerability using Content Security Policy reports to trigger information leakage through redirect behavior.
Mitigation and Prevention
Learn how to protect your systems and devices from CVE-2021-30888.
Immediate Steps to Take
Users should update their Apple devices to the latest patched versions to mitigate the risk of information leakage from this vulnerability.
Long-Term Security Practices
Implementing secure browsing habits and staying vigilant against suspicious websites can help prevent exploitation of such vulnerabilities in the future.
Patching and Updates
Regularly check for security updates from Apple and apply them promptly to ensure your devices are protected from known vulnerabilities.