CVE-2021-33838 : Security Advisory and Response
Learn about CVE-2021-33838 affecting Luca Android app versions up to 1.7.4. Understand the impact, vulnerability details, affected systems, and mitigation steps to protect user data.
Luca through 1.7.4 on Android allows remote attackers to obtain sensitive information about COVID-19 tracking due to timing issues in requests related to Check-In State and Phone Number Registration.
Understanding CVE-2021-33838
This CVE highlights a security vulnerability in the Luca app on Android that could lead to the exposure of private COVID-19 tracking information.
What is CVE-2021-33838?
CVE-2021-33838 affects Luca app versions up to 1.7.4 on Android, enabling malicious actors to access confidential data related to COVID-19 tracking.
The Impact of CVE-2021-33838
The vulnerability allows remote attackers to retrieve information about COVID-19 tracking from the app, jeopardizing user privacy and data security.
Technical Details of CVE-2021-33838
This section provides insights into the specific technical aspects of the CVE.
Vulnerability Description
The flaw in Luca app allows threat actors to extract sensitive COVID-19 tracking details by exploiting the timing of certain requests within the application.
Affected Systems and Versions
Luca app versions up to 1.7.4 on Android are impacted by this vulnerability, potentially exposing user data to unauthorized access.
Exploitation Mechanism
By manipulating the sequence of requests related to Check-In State and Phone Number Registration, attackers can gather private COVID-19 tracking information from unsuspecting users.
Mitigation and Prevention
Protecting against CVE-2021-33838 involves proactive security measures and prompt actions to safeguard user data.
Immediate Steps to Take
Users are advised to update the Luca app to the latest version and avoid sharing sensitive personal information through the application.
Long-Term Security Practices
Implementing best security practices such as avoiding public Wi-Fi networks and regularly reviewing app permissions can enhance overall data protection.
Patching and Updates
Developers should release patches that address the vulnerability promptly to prevent further exploitation and protect user privacy.