CVE-2020-27053 : Security Advisory and Response
Learn about CVE-2020-27053, a vulnerability in Android-11 that allows location permission bypass, potentially leading to WiFi network information disclosure. Find mitigation steps here.
Android-11 has a vulnerability in broadcastWifiCredentialChanged of ClientModeImpl.java that could lead to information disclosure.
Understanding CVE-2020-27053
This CVE involves a location permission bypass in Android-11, potentially exposing WiFi network information.
What is CVE-2020-27053?
The vulnerability in broadcastWifiCredentialChanged of ClientModeImpl.java allows for a location permission bypass, leading to local information disclosure of WiFi network names.
The Impact of CVE-2020-27053
The vulnerability could result in the disclosure of sensitive information without requiring user interaction, posing a risk of local information exposure.
Technical Details of CVE-2020-27053
This section provides technical details of the CVE.
Vulnerability Description
The issue arises from a missing permission check in broadcastWifiCredentialChanged, enabling unauthorized access to WiFi network names.
Affected Systems and Versions
- Product: Android
- Version: Android-11
Exploitation Mechanism
The vulnerability allows attackers to bypass location permissions, potentially leading to the disclosure of WiFi network names.
Mitigation and Prevention
Protecting systems from CVE-2020-27053 is crucial.
Immediate Steps to Take
- Apply security patches promptly to address the vulnerability.
- Monitor for any unauthorized access to WiFi network information.
Long-Term Security Practices
- Regularly update Android devices to the latest software versions.
- Implement network security measures to prevent unauthorized access.
Patching and Updates
- Stay informed about security bulletins and updates from Android to patch vulnerabilities promptly.