CVE-2023-21170 : What You Need to Know

This article provides detailed information about CVE-2023-21170, a published vulnerability in the Android operating system that could potentially lead to local information disclosure.

Understanding CVE-2023-21170

CVE-2023-21170 is a security vulnerability identified in the Android operating system. It was published on June 28, 2023, with the identifier CVE-2023-21170. The vulnerability requires System execution privileges for exploitation and does not necessitate user interaction.

What is CVE-2023-21170?

The vulnerability exists in the executeSetClientTarget function of ComposerCommandEngine.h. It arises due to a missing bounds check, which could result in an out-of-bounds read. This flaw has the potential to lead to local information disclosure.

The Impact of CVE-2023-21170

The impact of CVE-2023-21170 is significant as it could allow an attacker to gain access to sensitive information stored on the affected system. Given that System execution privileges are required for exploitation, the consequences of this vulnerability can be severe.

Technical Details of CVE-2023-21170

This section delves into the specifics of CVE-2023-21170, covering the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in executeSetClientTarget of ComposerCommandEngine.h can result in an out of bounds read due to the absence of a bounds check. This flaw could enable an attacker to disclose local information on the system.

Affected Systems and Versions

The impacted product is Android, specifically version Android-13. Systems running this version are susceptible to the CVE-2023-21170 vulnerability, with the status documented as "affected."

Exploitation Mechanism

To exploit CVE-2023-21170, an attacker would need System execution privileges. User interaction is not necessary for the exploitation of this vulnerability, making it a concern for systems running the affected Android version.

Mitigation and Prevention

In light of the CVE-2023-21170 vulnerability, it is crucial to take immediate steps to address and mitigate the risk it poses. Additionally, implementing long-term security practices and staying updated on patches is essential to safeguard systems.

Immediate Steps to Take

As a precautionary measure, users and organizations should be vigilant about security updates and patches released by the Android platform to address CVE-2023-21170. Promptly applying these updates can help mitigate the risk of exploitation.

Long-Term Security Practices

Implementing robust security practices such as regular security audits, network monitoring, access control, and employee awareness training can enhance the overall security posture of systems and mitigate risks associated with vulnerabilities like CVE-2023-21170.

Patching and Updates

It is crucial for users to stay informed about security bulletins and updates provided by Android for addressing vulnerabilities like CVE-2023-21170. Timely installation of patches and updates is key to reducing the exposure to potential security threats.