CVE-2017-8504 : Exploit Details and Defense Strategies
Learn about CVE-2017-8504, an information disclosure vulnerability in Microsoft Edge versions 1607 and 1703 for Windows 10 and Windows Server 2016. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
An information disclosure vulnerability in Microsoft Edge versions 1607 and 1703 for Windows 10 and Windows Server 2016 allows attackers to access the URL of a cross-origin request due to incorrect handling of a filtered response type by the Microsoft Edge Fetch API.
Understanding CVE-2017-8504
This CVE ID is distinct from CVE-2017-8498.
What is CVE-2017-8504?
The vulnerability enables unauthorized access to URL information in specific Microsoft Edge versions and Windows Server 2016.
The Impact of CVE-2017-8504
The vulnerability poses a risk of exposing sensitive URL data to malicious actors, potentially leading to further security breaches.
Technical Details of CVE-2017-8504
Microsoft Edge Information Disclosure Vulnerability
Vulnerability Description
- An information disclosure vulnerability in Microsoft Edge versions 1607 and 1703 for Windows 10 and Windows Server 2016.
- Attackers can access the URL of a cross-origin request due to incorrect handling of a filtered response type by the Microsoft Edge Fetch API.
Affected Systems and Versions
- Product: Microsoft Edge
- Vendor: Microsoft Corporation
- Versions: Microsoft Windows 10 1607 and 1703, and Windows Server 2016.
Exploitation Mechanism
- Attackers exploit the vulnerability by manipulating the Microsoft Edge Fetch API to access URL information.
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by Microsoft promptly.
- Consider restricting access to sensitive information through browser settings.
Long-Term Security Practices
- Regularly update Microsoft Edge and Windows Server to the latest versions.
- Implement network security measures to detect and prevent unauthorized access.
- Educate users on safe browsing practices to minimize the risk of information disclosure.
- Monitor and analyze network traffic for any suspicious activities.
- Consider using additional security tools to enhance protection against information disclosure vulnerabilities.
Patching and Updates
- Stay informed about security advisories from Microsoft and apply patches as soon as they are released.