CVE-2021-0924 : Exploit Details and Defense Strategies

Android devices are impacted by CVE-2021-0924, a vulnerability in the Android kernel that could allow for local escalation of privilege. This article delves into the details, impact, technical aspects, and mitigation strategies related to this CVE.

Understanding CVE-2021-0924

This section provides an overview of the vulnerability, its implications, and affected systems.

What is CVE-2021-0924?

CVE-2021-0924 involves an out-of-bounds read vulnerability in xhci_vendor_get_ops of xhci.c, potentially leading to a local escalation of privilege. The absence of a bounds check in the code could allow an attacker to gain elevated privileges without requiring additional execution permissions or user interaction.

The Impact of CVE-2021-0924

The vulnerability could be exploited by an attacker to achieve elevated privileges on the affected Android devices. Successful exploitation could lead to unauthorized access and control over the device, posing a significant security risk.

Technical Details of CVE-2021-0924

Explore the intricate technical aspects of the vulnerability, including the description, affected systems, versions, and exploitation mechanism.

Vulnerability Description

The vulnerability arises due to a missing bounds check in xhci_vendor_get_ops of xhci.c. This oversight could be leveraged by threat actors to perform an out-of-bounds read operation, potentially facilitating privilege escalation attacks.

Affected Systems and Versions

Android devices running the Android kernel are susceptible to CVE-2021-0924. It is crucial for users and administrators to identify the impacted systems to take appropriate remedial actions.

Exploitation Mechanism

The exploitation of CVE-2021-0924 involves manipulating the out-of-bounds read vulnerability in xhci_vendor_get_ops. Attackers could craft malicious inputs to trigger the flaw and gain unauthorized privileges on the target system.

Mitigation and Prevention

Discover the essential steps to mitigate the risks associated with CVE-2021-0924 and safeguard Android devices against potential exploitation.

Immediate Steps to Take

Users are advised to apply relevant security patches and updates provided by Android to address the vulnerability. Additionally, implementing security best practices can enhance the overall protection of devices.

Long-Term Security Practices

Establishing robust security measures, such as regular security assessments, network segmentation, and user awareness training, can bolster the defense mechanisms against similar vulnerabilities in the future.

Patching and Updates

Timely installation of security patches released by Android is crucial to remediate CVE-2021-0924. Users should ensure their devices are up to date with the latest software versions to mitigate security risks effectively.