CVE-2017-6932 : Vulnerability Insights and Analysis

Drupal Core versions 7.x before 7.57 are vulnerable to external link injection, potentially leading to users being redirected to malicious websites.

Understanding CVE-2017-6932

Drupal Core versions 7.x before 7.57 have a security flaw that allows external link injection when using the language switcher block, posing a risk of users being tricked into visiting harmful sites.

What is CVE-2017-6932?

The vulnerability in Drupal Core versions 7.x before 7.57 enables attackers to insert external links, including in custom and contributed modules, which could deceive users into accessing unintended websites.

The Impact of CVE-2017-6932

Exploiting this vulnerability may result in potential attackers deceiving users into unintentionally visiting external websites, potentially leading to phishing attacks or the installation of malware.

Technical Details of CVE-2017-6932

Drupal Core versions 7.x before 7.57 are susceptible to external link injection, allowing attackers to manipulate links and mislead users.

Vulnerability Description

The vulnerability in Drupal Core versions 7.x before 7.57 permits the injection of external links, particularly noticeable when utilizing the language switcher block, and extends to various custom and contributed modules.

Affected Systems and Versions

Product: Drupal Core
Vendor: Drupal.org
Versions Affected: 7.x versions before 7.57

Exploitation Mechanism

Attackers can exploit this vulnerability by inserting malicious external links, potentially leading users to unintended and harmful websites.

Mitigation and Prevention

Taking immediate action and implementing long-term security practices are crucial to mitigating the risks associated with CVE-2017-6932.

Immediate Steps to Take

Update Drupal Core to version 7.57 or later to patch the vulnerability.
Disable the language switcher block if not essential to mitigate the risk of external link injection.

Long-Term Security Practices

Regularly monitor and update Drupal Core and all associated modules to prevent vulnerabilities.
Educate users on safe browsing practices to avoid falling victim to malicious link injections.

Patching and Updates

Apply security updates promptly to Drupal Core and all relevant modules to address known vulnerabilities and enhance system security.