WordPress 3.3.1 and earlier - Brute-Force Attack Vulnerability
Summary
CVE-2011-4898: wp-admin/setup-config.php in the installation component in WordPress 3.3.1 and earlier generates different error messages for requests lacking a dbname parameter depending on whether the MySQL credentials are valid, whic... Affects wordpress versions 5.7.1+dfsg1-2 – 6.8.1+dfsg1-1. No fix is published. How to fix ↓
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Background
WordPress is a popular open-source content management system (CMS) used for creating websites and blogs. It provides a user-friendly interface and a wide range of features for managing website content. The vulnerability affects WordPress versions 3.3.1 and earlier. This vulnerability allows remote attackers to conduct brute-force attacks by exploiting the different error messages generated during the installation process.
Vulnerability Detail
The vulnerability exists in the installation component of WordPress. When the installation script wp-admin/setup-config.php is accessed without the required dbname parameter, it generates different error messages depending on the validity of the MySQL credentials. This behavior makes it easier for attackers to guess the correct credentials through a series of requests with different uname and pwd parameters. The vendor disputes the significance of this issue, and it is unclear whether providing intentionally vague error messages during installation would be reasonable from a usability perspective.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability. However, users can mitigate the risk by ensuring strong and unique passwords for their MySQL database credentials. Additionally, implementing a web application firewall (WAF) can help detect and block brute-force attacks.
Conclusion
The vulnerability in WordPress 3.3.1 and earlier allows remote attackers to conduct brute-force attacks by exploiting the different error messages generated during the installation process. It is important to update WordPress to a version that is not affected by this vulnerability and follow best practices for securing the installation. For further support on vulnerability remediation, contact DevNack.com.
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FAQ
WordPress is an open-source content management system (CMS) used for creating websites and blogs. It provides a user-friendly interface and a wide range of features for managing website content.
WordPress versions 3.3.1 and earlier are affected by this vulnerability.
A brute-force attack is a trial-and-error method used by attackers to guess passwords or encryption keys. In the context of this vulnerability, it refers to the repeated attempts to guess the correct MySQL database credentials.
The vendor may have provided security patches for this vulnerability. It is recommended to check for updates or patches from the official WordPress website or the vendor's support channels.
To protect your WordPress installation from brute-force attacks, it is recommended to use strong and unique passwords for your MySQL database credentials. Additionally, implementing a web application firewall (WAF) can help detect and block such attacks.
References
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