CVE-2021-1797 : Vulnerability Insights and Analysis
Learn about CVE-2021-1797, a security vulnerability in Apple's iOS, iPadOS, and macOS systems, allowing local users to read arbitrary files. Find out its impact, affected systems, and mitigation steps.
This article provides an overview of CVE-2021-1797, a vulnerability affecting various Apple products such as iOS, iPadOS, and macOS, allowing a local user to read arbitrary files.
Understanding CVE-2021-1797
CVE-2021-1797 is a security vulnerability that impacts iOS, iPadOS, and macOS systems, potentially enabling a local user to access arbitrary files on the affected devices.
What is CVE-2021-1797?
The vulnerability, fixed in 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, arises from flawed permissions logic, allowing unauthorized file access.
The Impact of CVE-2021-1797
The CVE-2021-1797 vulnerability could be exploited by a local user to read sensitive files on the system, potentially leading to unauthorized data access and privacy breaches.
Technical Details of CVE-2021-1797
CVE-2021-1797 is described as a permissions logic flaw in Apple's iOS, iPadOS, and macOS operating systems, affecting versions less than 14.4, 11.2, and 7.3, respectively.
Vulnerability Description
The vulnerability enables a local user to read arbitrary files due to inadequate permission restrictions, posing a risk of unauthorized data access within the system.
Affected Systems and Versions
iOS and iPadOS versions prior to 14.4, macOS versions before 11.2, and tvOS versions less than 14.4 are susceptible to this security flaw, necessitating immediate patching.
Exploitation Mechanism
By exploiting the flawed permissions logic, a local user could potentially navigate the system and access sensitive files without proper authorization, compromising data confidentiality.
Mitigation and Prevention
It is crucial to take immediate and long-term security measures to mitigate the risks associated with CVE-2021-1797.
Immediate Steps to Take
Users are advised to update their affected Apple devices to the latest recommended versions, including macOS Big Sur 11.2 and iOS 14.4, to prevent unauthorized file access.
Long-Term Security Practices
To enhance overall device security, users should adopt robust data encryption, enable secure login methods, and implement regular security updates to safeguard against potential vulnerabilities.
Patching and Updates
Regularly check for security updates from Apple and promptly install patches to address known vulnerabilities and strengthen the overall security posture of the affected devices.