CVE-2017-7271 Explained : Impact and Mitigation
Learn about CVE-2017-7271, a vulnerability in Yii Framework allowing Reflected Cross-site scripting attacks. Find out how to mitigate this security risk and protect your system.
A vulnerability in the Yii Framework allows for Reflected Cross-site scripting (XSS) attacks when in development mode, enabling malicious script injection.
Understanding CVE-2017-7271
What is CVE-2017-7271?
When the Yii Framework is in development mode, a vulnerability known as Reflected Cross-site scripting (XSS) can be exploited, allowing attackers to inject malicious web scripts or HTML into the system.
The Impact of CVE-2017-7271
This vulnerability permits attackers to inject harmful code into the system, potentially leading to unauthorized access, data theft, and other security breaches.
Technical Details of CVE-2017-7271
Vulnerability Description
The vulnerability in Yii Framework before version 2.0.11 allows remote attackers to inject arbitrary web script or HTML via crafted request data mishandled on the debug-mode exception screen.
Affected Systems and Versions
- Product: Yii Framework
- Versions affected: Before 2.0.11
Exploitation Mechanism
Attackers exploit this vulnerability by sending carefully crafted request data to inject their own web scripts or HTML into the system, which is mishandled on the debug-mode exception screen.
Mitigation and Prevention
Immediate Steps to Take
- Update Yii Framework to version 2.0.11 or newer to mitigate the vulnerability.
- Avoid using the Yii Framework in development mode in production environments.
Long-Term Security Practices
- Regularly monitor and update web application frameworks to the latest versions.
- Implement input validation and output encoding to prevent XSS attacks.
Patching and Updates
- Apply security patches and updates provided by Yii Framework to address known vulnerabilities.