CVE-2021-20747 : Vulnerability Insights and Analysis
Learn about CVE-2021-20747, an improper authorization flaw in Retty App for Android and iOS versions allowing remote attackers to redirect users to malicious websites. Find mitigation steps here.
This CVE-2021-20747 article provides insights into an improper authorization vulnerability in Retty App for Android and iOS, allowing remote attackers to trick users into accessing malicious websites.
Understanding CVE-2021-20747
This section delves into the details of the CVE-2021-20747 vulnerability and its impact.
What is CVE-2021-20747?
The CVE-2021-20747 vulnerability involves improper authorization in the handler for a custom URL scheme in Retty App for Android and iOS.
The Impact of CVE-2021-20747
The vulnerability allows a remote attacker to manipulate user actions and lead them to visit arbitrary websites through the affected mobile applications.
Technical Details of CVE-2021-20747
Explore the technical aspects of the CVE-2021-20747 vulnerability to understand its implications and potential risks.
Vulnerability Description
The flaw in Retty App versions before Android 4.8.13 and iOS 4.11.14 enables attackers to exploit the custom URL scheme handler for unauthorized website redirection.
Affected Systems and Versions
Retty App for Android versions prior to 4.8.13 and Retty App for iOS versions before 4.11.14 are susceptible to this authorization bypass vulnerability.
Exploitation Mechanism
Remote adversaries can leverage the vulnerable custom URL scheme handler to mislead users into interacting with malicious websites.
Mitigation and Prevention
Discover the steps to mitigate the risks associated with CVE-2021-20747 and safeguard your systems effectively.
Immediate Steps to Take
Users should update Retty App on their Android and iOS devices to versions 4.8.13 and 4.11.14 respectively to mitigate the improper authorization vulnerability.
Long-Term Security Practices
Implement strict validation mechanisms for custom URL schemes to prevent unauthorized website redirection and enhance overall application security.
Patching and Updates
Regularly check for security updates and patches for Retty App to address and mitigate vulnerabilities like CVE-2021-20747 effectively.