CVE-2019-11767: phpBB Server side request forgery (SSRF)
Summary
CVE-2019-11767: phpBB Server side request forgery (SSRF). 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 users to create and manage online communities. The vulnerability in question, known as Server side request forgery (SSRF), affects phpBB versions prior to 3.2.6. SSRF allows an attacker to manipulate the server into making requests to other internal resources, potentially leading to unauthorized access or information disclosure.
Vulnerability Detail
The SSRF vulnerability in phpBB allows an attacker to abuse the remote avatar upload function to check for the existence of files and services on the local network of the host. By crafting a malicious request, an attacker can trick the server into making requests to internal resources, such as local files or services, and determine their availability. This can be particularly dangerous if the internal resources contain sensitive information or are vulnerable to further exploitation.
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
There is no specific workaround mentioned for this vulnerability. It is crucial to apply the recommended fix by upgrading to the latest version of phpBB.
Conclusion
The SSRF vulnerability in phpBB can be mitigated by upgrading to version 3.2.6 or later. It is important to promptly apply the recommended fix to prevent unauthorized access to internal resources. For further support on vulnerability remediation, you can reach out to DevNack.com.
See every vulnerability recorded for phpbb/phpbb →
FAQ
phpBB is an open-source forum software written in PHP that allows users to create and manage online communities.
Server side request forgery (SSRF) is a vulnerability that allows an attacker to manipulate a server into making requests to internal resources, potentially leading to unauthorized access or information disclosure.
The vulnerability allows an attacker to check for the existence of files and services on the local network of the host, potentially leading to unauthorized access or information disclosure.
To fix this vulnerability, it is recommended to upgrade to phpBB version 3.2.6 or later.
There is no specific workaround mentioned for this vulnerability. It is crucial to apply the recommended fix by upgrading to the latest version of phpBB.
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