CVE-2021-0659 : Exploit Details and Defense Strategies

A vulnerability has been identified in apusys which could allow an attacker to perform an out of bounds read operation, leading to local information disclosure. No user interaction is required for exploitation.

Understanding CVE-2021-0659

This CVE identifies a vulnerability in the apusys component that could result in an out of bounds read scenario, potentially allowing an attacker to access local information without the need for user interaction.

What is CVE-2021-0659?

CVE-2021-0659 refers to a flaw in the bounds check process within apusys that may be exploited by an attacker to retrieve sensitive information without requiring any interaction from the user.

The Impact of CVE-2021-0659

The impact of this vulnerability is the potential disclosure of local information, posing a risk to the confidentiality of sensitive data stored on the affected system.

Technical Details of CVE-2021-0659

This section delves into the technical aspects of the CVE, outlining the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in apusys triggers as a result of an incorrect bounds check, enabling an out of bounds read operation that could lead to local information disclosure.

Affected Systems and Versions

The following systems and versions are affected by CVE-2021-0659: MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8195, MT8791, MT8797 running on Android 10.0 and 11.0.

Exploitation Mechanism

Exploiting this vulnerability does not require any user interaction, simplifying the attack process for threat actors seeking to extract local information.

Mitigation and Prevention

In this section, we discuss the steps that can be taken to mitigate the risks associated with CVE-2021-0659 and prevent potential exploitation.

Immediate Steps to Take

It is recommended to apply the provided patch (Patch ID: ALPS05687559) to address the vulnerability and prevent unauthorized access to local information.

Long-Term Security Practices

Implementing robust security measures, such as regular system updates, security training for users, and network segmentation, can enhance the overall security posture of the system.

Patching and Updates

Regularly check for security patches and updates from the vendor to ensure that the system is protected against known vulnerabilities and exploits.