CVE-2019-9826: phpBB Denial of Service
Summary
CVE-2019-9826: phpBB Denial of Service. Affects phpbb/phpbb versions < 3.2.6. Fixed in 3.2.6. How to fix ↓
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Background
phpBB is a popular open-source forum software written in PHP. It provides a platform for online communities to engage in discussions and share information. The vulnerability identified as CVE-2019-9826 affects versions of phpBB prior to 3.2.6. This vulnerability specifically impacts the fulltext search component of phpBB, leading to a Denial of Service (DoS) attack.
Vulnerability Detail
The fulltext search component in phpBB before 3.2.6 is susceptible to a Denial of Service attack. This vulnerability allows an attacker to disrupt the normal functioning of the software, rendering it inaccessible to legitimate users. By exploiting this vulnerability, an attacker can overload the search functionality, causing excessive resource consumption and potentially crashing the application. This can result in a significant impact on the availability and performance of the phpBB forum.
How To Fix
Minimum fixed version
3.2.6
This is the first release that contains the fix.
composer require phpbb/phpbb:3.2.6Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can disable the fulltext search functionality in phpBB to mitigate the risk of a Denial of Service attack. This can be achieved by modifying the configuration settings of the forum software. However, it is important to note that disabling the fulltext search may impact the search capabilities of the forum. Therefore, it is recommended to apply the official fix by upgrading to phpBB version 3.2.6 or later.
Conclusion
The CVE-2019-9826 vulnerability in phpBB poses a significant risk of a Denial of Service attack. It is crucial to upgrade to phpBB version 3.2.6 or later to address this vulnerability and ensure the security and availability of the forum. For further assistance and support in vulnerability remediation, please contact DevNack.com.
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FAQ
phpBB is an open-source forum software written in PHP. It provides a platform for online communities to engage in discussions and share information.
A Denial of Service attack is a malicious attempt to disrupt the normal functioning of a computer system or network, making it inaccessible to legitimate users.
The CVE-2019-9826 vulnerability in phpBB allows an attacker to launch a Denial of Service attack by exploiting the fulltext search component. This can result in the forum becoming unresponsive or crashing.
To mitigate the CVE-2019-9826 vulnerability, it is advised to upgrade phpBB to version 3.2.6 or later, which includes the necessary security patches and fixes.
Yes, as a temporary workaround, you can disable the fulltext search functionality in phpBB. However, this may impact the search capabilities of the forum.
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