CVE-2017-8082 : Vulnerability Insights and Analysis

Concrete5 8.1.0 contains a critical Cross-Site Request Forgery (CSRF) vulnerability in the Thumbnail Editor of the File Manager, allowing remote attackers to disable the entire installation, resulting in a denial of service.

Understanding CVE-2017-8082

This CVE entry describes a CSRF vulnerability in concrete5 8.1.0 that can be exploited to render the entire installation inaccessible.

What is CVE-2017-8082?

Concrete5 8.1.0 is susceptible to a CSRF flaw in the Thumbnail Editor within the File Manager. By tricking an administrator into accessing a malicious page with a specific URI, attackers can render the site unusable.

The Impact of CVE-2017-8082

The vulnerability allows remote attackers to disable the concrete5 installation by deceiving an administrator into visiting a malicious page. This results in a site-wide denial of service, making the site inaccessible to both users and administrators.

Technical Details of CVE-2017-8082

Concrete5 8.1.0's vulnerability and its implications.

Vulnerability Description

The CSRF vulnerability in the Thumbnail Editor of the File Manager in concrete5 8.1.0 enables attackers to trigger a denial of service by manipulating an administrator into accessing a specific URI.

Affected Systems and Versions

Product: concrete5 8.1.0
Vendor: Not applicable
Versions: Not applicable

Exploitation Mechanism

Attackers can exploit this vulnerability by luring an administrator to a malicious page containing the URI /tools/required/files/importers/imageeditor?fID=1&imgData=, leading to the site-wide denial of service.

Mitigation and Prevention

Steps to mitigate the impact of CVE-2017-8082.

Immediate Steps to Take

Implement strict access controls to prevent unauthorized access to critical functionalities.
Regularly monitor and audit web traffic for suspicious activities.
Educate administrators about the risks of CSRF attacks and how to identify malicious URLs.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and address vulnerabilities.
Keep software and systems up to date with the latest security patches and updates.

Patching and Updates

Apply patches or updates provided by concrete5 to address the CSRF vulnerability and enhance system security.