CVE-2016-9452: Drupal Denial of Service via Transliterate Mechanism
Summary
CVE-2016-9452: Drupal Denial of service via transliterate mechanism. Affects drupal/core versions >= 8.0, < 8.2.3. Fixed in 8.2.3. How to fix ↓
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Background
Drupal is a popular open-source content management system (CMS) written in PHP. It provides a flexible platform for building websites and applications. The Drupal core package is the foundation of the CMS and includes essential features and functionality. One of the features provided by Drupal is the transliterate mechanism, which allows converting non-ASCII characters to ASCII equivalents. This mechanism is used for generating clean URLs and handling internationalization. However, a vulnerability in the transliterate mechanism in Drupal 8.x versions before 8.2.3 can be exploited by remote attackers to cause a denial of service (DoS) by sending a crafted URL.
Vulnerability Detail
The vulnerability (CVE-2016-9452) in the Drupal transliterate mechanism allows remote attackers to launch a DoS attack by exploiting a flaw in the way URLs are processed. By sending a specially crafted URL, an attacker can trigger the vulnerability and cause the affected Drupal instance to become unresponsive or crash. This can lead to service disruption and impact the availability of the website or application. The vulnerability is rated as moderate in severity with a CVSS score of 6.5.
How To Fix
Minimum fixed version
8.2.3
This is the first release that contains the fix.
composer require drupal/core:8.2.3Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is recommended to apply the fix by upgrading to the latest version of Drupal.
Conclusion
The Drupal transliterate mechanism vulnerability (CVE-2016-9452) can be exploited by remote attackers to cause a denial of service (DoS) by sending a crafted URL. To mitigate this vulnerability, it is crucial to upgrade to Drupal version 8.2.3 or later. Regularly updating Drupal and applying security patches is essential to ensure the security and stability of your website or application. For further assistance and support in vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability allows remote attackers to cause a denial of service (DoS) by sending a crafted URL. This can lead to service disruption and impact the availability of the affected Drupal instance.
The vulnerability affects Drupal 8.x versions before 8.2.3.
No, there is no known workaround. It is recommended to upgrade to the latest version of Drupal to fix the vulnerability.
The vulnerability is rated as moderate in severity with a CVSS score of 6.5.
To protect your Drupal installation, it is recommended to upgrade to Drupal version 8.2.3 or later. Regularly applying security patches and updates is also important to stay protected against known vulnerabilities.
References
Related vulnerabilities
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