CVE-2023-21230 : What You Need to Know

This CVE-2023-21230 was published on August 14, 2023, with Google Android as the assigner organization. The vulnerability affects Android versions 13 and 11, posing a risk of local information disclosure to unprivileged apps without requiring additional execution privileges.

Understanding CVE-2023-21230

This section will delve into the details of the CVE-2023-21230 vulnerability, its impact, technical aspects, and mitigation strategies.

What is CVE-2023-21230?

The CVE-2023-21230 vulnerability resides in the onAccessPointChanged function of AccessPointPreference.java. It allows unprivileged apps to intercept a broadcast concerning WiFi access point changes, disclosing the BSSID or SSID without the need for user interaction. This flaw stems from a precondition check failure.

The Impact of CVE-2023-21230

The exploit potential of this vulnerability lies in the unauthorized access to sensitive information regarding WiFi network changes. By disclosing the BSSID or SSID, attackers can gather location-based data and other confidential details, potentially compromising user privacy.

Technical Details of CVE-2023-21230

Understanding the technical specifics of a vulnerability is crucial for effective mitigation and prevention strategies.

Vulnerability Description

The CVE-2023-21230 vulnerability enables unprivileged apps to eavesdrop on WiFi access point changes, exposing the BSSID or SSID, leading to unauthorized information disclosure. This loophole bypasses necessary security checks, making it a critical threat to user privacy.

Affected Systems and Versions

The impacted systems include Android versions 13 and 11. Google Android users running these versions are at risk of local information disclosure through unprivileged app interference with WiFi access point broadcasts.

Exploitation Mechanism

Attackers can exploit this vulnerability without requiring user interaction, making it a significant concern for device security. The flaw allows malicious apps to intercept and extract sensitive WiFi network details, compromising user privacy and potentially exposing location-based data.

Mitigation and Prevention

Taking immediate steps to address vulnerabilities like CVE-2023-21230 is imperative to safeguard devices and user data.

Immediate Steps to Take

Update affected Android devices to the latest secure versions to patch the CVE-2023-21230 vulnerability.
Regularly monitor for security advisories and apply security patches promptly to mitigate emerging risks.
Avoid downloading apps from unofficial sources to reduce the likelihood of exposure to malicious software.

Long-Term Security Practices

Implement robust app security protocols and permissions to restrict unauthorized access to sensitive device information.
Educate users on practicing caution while granting app permissions and staying vigilant against suspicious app behavior.
Conduct regular security audits and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Google Android has released security patches addressing CVE-2023-21230. Users are advised to install these updates promptly to eliminate the vulnerability and enhance device security. Regularly updating devices and staying informed about security best practices are crucial steps in mitigating potential risks associated with vulnerabilities like CVE-2023-21230.