CVE-2021-44749 : Exploit Details and Defense Strategies
Learn about CVE-2021-44749, a Universal Cross-Site Scripting Vulnerability in F-Secure SAFE Browser for Android. Find mitigation steps and details on the available fix.
A vulnerability affecting F-Secure SAFE browser protection was discovered, allowing universal cross-site scripting through browsing protection in a SAFE web browser, potentially leading to arbitrary code execution.
Understanding CVE-2021-44749
What is CVE-2021-44749?
CVE-2021-44749 is a Universal Cross-Site Scripting Vulnerability in F-Secure SAFE Browser Protection for Android.
The Impact of CVE-2021-44749
The vulnerability can be exploited by manipulating URLs, leading to universal cross-site scripting in the F-Secure SAFE web browser. Successful exploitation may result in arbitrary code execution.
Technical Details of CVE-2021-44749
Vulnerability Description
Improper URL handling in F-Secure SAFE browser protection allows for universal cross-site scripting through browsing protection.
Affected Systems and Versions
- Product: F-Secure SAFE Browser for Android Version 18.5
- Versions Affected: Less than 18.5x
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- User Interaction: Required
- Privileges Required: Low
- Scope: Unchanged
- CVSS Score: 5.5 (Medium)
Mitigation and Prevention
Immediate Steps to Take
- Ensure automatic updates are enabled
- Validate that the fix has been applied
Long-Term Security Practices
- Regularly update security software
- Educate users on safe browsing practices
Patching and Updates
A fix for CVE-2021-44749 has been released and available since 18th February 2022.