Trustwave SpiderLabs Uncovers Ov3r_Stealer Malware Spread via Phishing and Facebook Advertising. Learn More

Trustwave SpiderLabs Uncovers Ov3r_Stealer Malware Spread via Phishing and Facebook Advertising. Learn More

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SpiderLabs Blog

mod_security and the PHPBB worm (Santy.A)

I have been asked to design a mod_security rule to protect sites from the recent PHPBB worm. Now, I don't have access to PHPBB (vulnerable or not) but looking at the worm log entries I have found online it should be simple:

SecFilterSelective ARG_highlight %27

This should prevent someone from trying to sneak an URL-encoded apostrophe in through the vulnerable variable "highlight". As I said, don't take my word for it. If you have a vulnerable installation use the exploit after installing the rule to see if it works. Please let me know whether the rule works or not. And don't forget to fix the real problem by upgrading your version of PHPBB. Update: As Ralph Germershausen points out, while you are fixing PHPBB also make sure you are using the latest PHP version (4.3.10 if you are still with the 4.x branch or 5.0.3 if you are with the 5.x branch). This is to take care of the recently announced vulnerabilities.

Latest SpiderLabs Blogs

Welcome to Adventures in Cybersecurity: The Defender Series

I’m happy to say I’m done chasing Microsoft certifications (AZ104/AZ500/SC100), and as a result, I’ve had the time to put some effort into a blog series that hopefully will entertain and inform you...

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Trustwave SpiderLabs: Insights and Solutions to Defend Educational Institutions Against Cyber Threats

Security teams responsible for defending educational institutions at higher education and primary school levels often find themselves facing harsh lessons from threat actors who exploit the numerous...

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Breakdown of Tycoon Phishing-as-a-Service System

Just weeks after Trustwave SpiderLabs reported on the Greatness phishing-as-a-service (PaaS) framework, SpiderLabs’ Email Security team is tracking another PaaS called Tycoon Group.

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