CVE-2011-4292: Moodle Denial of Service via Invalid Database Records
Summary
CVE-2011-4292: Moodle allows remote authenticated users to cause a denial of service (invalid database records). Affects moodle/moodle versions >= 2.0.0, < 2.0.3. Fixed in 2.0.3. How to fix ↓
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Background
Moodle is an open-source learning platform designed to provide educators, administrators, and learners with a single robust, secure, and integrated system to create personalized learning environments. It is widely used in educational institutions for course management and online learning. However, certain versions of Moodle are vulnerable to a denial of service attack due to improper handling of crafted comments operations, which can lead to invalid database records.
Vulnerability Detail
The vulnerability identified as CVE-2011-4292 allows remote authenticated users to exploit Moodle versions 2.0.x prior to 2.0.3. By performing a series of crafted comments operations, these users can create invalid database records, leading to a denial of service. This means that legitimate users may be unable to access the platform or its features, severely impacting the learning experience and administrative functions.
How To Fix
Minimum fixed version
2.0.3
This is the first release that contains the fix.
composer require moodle/moodle:2.0.3Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds mentioned for this vulnerability. The best course of action is to apply the patch by updating to the fixed version.
Conclusion
In summary, CVE-2011-4292 is a significant vulnerability in Moodle that can lead to denial of service due to invalid database records. It is crucial for users to update to version 2.0.3 or later to mitigate this risk. Regular monitoring using tools like Vulert can help maintain the security of your applications.
See every vulnerability recorded for moodle/moodle →
FAQ
CVE-2011-4292 is a vulnerability in Moodle that allows remote authenticated users to cause a denial of service through invalid database records.
Moodle versions 2.0.x prior to 2.0.3 are affected by this vulnerability.
You can use Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without any signup.
The vulnerability can lead to a denial of service, preventing legitimate users from accessing the Moodle platform and its features.
While there are no specific workarounds, it is recommended to limit access to the platform for authenticated users until the update can be applied.
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