CVE-2017-6908 : Security Advisory and Response
Learn about CVE-2017-6908, a security flaw in concrete5 <= 5.6.3.4 allowing attackers to execute arbitrary code. Find mitigation steps and affected versions here.
A security flaw has been identified in versions of concrete5 up to 5.6.3.4 that could allow an attacker to execute arbitrary HTML and script code through a browser.
Understanding CVE-2017-6908
What is CVE-2017-6908?
An issue in concrete5 <= 5.6.3.4 allows attackers to execute arbitrary code due to inadequate filtering of user-supplied data.
The Impact of CVE-2017-6908
The vulnerability could enable attackers to execute malicious code within the context of the vulnerable website.
Technical Details of CVE-2017-6908
Vulnerability Description
Insufficient filtration of user-supplied data (fID) passed to a specific URL in concrete5 <= 5.6.3.4.
Affected Systems and Versions
- Product: concrete5
- Vendor: Not applicable
- Versions affected: Up to 5.6.3.4
Exploitation Mechanism
Attackers can exploit the vulnerability by transmitting data to a specific URL, potentially executing arbitrary HTML and script code.
Mitigation and Prevention
Immediate Steps to Take
- Update concrete5 to a secure version.
- Implement input validation and output encoding to prevent code injection.
Long-Term Security Practices
- Regularly monitor and patch vulnerabilities in web applications.
- Educate developers on secure coding practices.
Patching and Updates
Apply patches and updates provided by concrete5 to address the vulnerability.