CVE-2023-21033 : Security Advisory and Response

This CVE-2023-21033 was published by google_android on March 24, 2023. It involves a vulnerability in the addNetwork function of WifiManager.java that could potentially trigger a persistent Denial of Service (DoS) attack due to resource exhaustion. Exploiting this vulnerability could lead to a local denial of service without requiring additional execution privileges or user interaction. The affected product is Android, specifically version Android-13.

Understanding CVE-2023-21033

This section will delve into the details of CVE-2023-21033, including what it entails and its potential impact on systems.

What is CVE-2023-21033?

CVE-2023-21033 is a vulnerability in the addNetwork function of WifiManager.java, allowing for a possible persistent DoS attack through resource exhaustion on Android devices running version Android-13. This vulnerability could result in a local denial of service without the need for additional privileges or user interaction.

The Impact of CVE-2023-21033

The impact of CVE-2023-21033 lies in its potential to disrupt services on affected Android devices, leading to a denial of service condition that could affect system availability and performance.

Technical Details of CVE-2023-21033

In this section, we will explore the technical aspects of CVE-2023-21033, including its vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability in the addNetwork function of WifiManager.java allows attackers to trigger a persistent DoS attack by causing resource exhaustion. This vulnerability can be exploited locally, posing a threat to system availability.

Affected Systems and Versions

The vulnerability impacts Android devices running version Android-13. Users of this specific version could be exposed to the risk of a denial of service attack through this exploit.

Exploitation Mechanism

Attackers can exploit CVE-2023-21033 by leveraging the vulnerability in the addNetwork function of WifiManager.java on Android devices running version Android-13. Through this exploit, they can trigger a resource exhaustion condition leading to a persistent DoS attack.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-21033, it is essential to take immediate steps to address the vulnerability and implement long-term security practices to prevent similar incidents in the future. Additionally, applying patches and updates is crucial to enhancing system security.

Immediate Steps to Take

Users and administrators are advised to be vigilant and monitor for any signs of a potential DoS attack on Android devices running version Android-13. Implementing security measures and restricting access to vulnerable functions can help mitigate the risk.

Long-Term Security Practices

In the long term, organizations should prioritize security awareness, regularly update systems and software, conduct security assessments, and enforce least privilege access to mitigate the impact of vulnerabilities like CVE-2023-21033.

Patching and Updates

To address CVE-2023-21033, it is recommended to apply patches and updates provided by the relevant vendors. By staying up to date with security patches, users can protect their systems from potential exploits and enhance overall security posture.