CVE-2021-1873 : Security Advisory and Response
CVE-2021-1873 involves an API issue in Accessibility TCC permissions on macOS, allowing a malicious application to leak user credentials from secure text fields. Learn about the impact, affected versions, and mitigation steps.
An API issue in Accessibility TCC permissions was addressed with improved state management, affecting macOS versions less than 11.3 and less than 2021. This issue has been fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, and Security Update 2021-003 Mojave. The vulnerability could allow a malicious application to unexpectedly leak a user's credentials from secure text fields.
Understanding CVE-2021-1873
This section will provide insights into the impact and technical details of the CVE-2021-1873 vulnerability.
What is CVE-2021-1873?
CVE-2021-1873 refers to an API issue in Accessibility TCC permissions on macOS that could enable a malicious application to potentially expose user credentials from secure text fields.
The Impact of CVE-2021-1873
The vulnerability could lead to a scenario where a malicious application gains unauthorized access to a user's sensitive information, specifically leaking credentials from secure text fields.
Technical Details of CVE-2021-1873
Let's delve into the technical aspects of this vulnerability.
Vulnerability Description
The CVE-2021-1873 vulnerability stems from an issue in Accessibility TCC permissions on macOS, allowing malicious applications to exploit this weakness.
Affected Systems and Versions
macOS versions that are less than 11.3 and less than 2021 are impacted by this vulnerability.
Exploitation Mechanism
A malicious application can exploit this vulnerability to leak user credentials from secure text fields.
Mitigation and Prevention
Here are the steps to mitigate the risks associated with CVE-2021-1873.
Immediate Steps to Take
Users should update their macOS to version 11.3 or apply the relevant security updates to safeguard against this vulnerability.
Long-Term Security Practices
Maintain good security hygiene by avoiding suspicious applications and regularly updating your system to prevent exploitation of known vulnerabilities.
Patching and Updates
Regularly check for security updates from Apple and promptly install them to patch known vulnerabilities and enhance your system's security.