2208.txt

snort入侵检测规则文件2.4 Snort是众所周知的网络入侵检测工具

Rule:  

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Sid:
2208

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Summary:
This event is generated when an attempt is made to access fom.cgi on an internal web server. This may indicate an attempt to exploit a cross-site scripting vulnerability in Faq-O-Matic.

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Impact:
Arbitrary code execution, possible session hijack.

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Detailed Information:
Faq-O-Matic is a CGI-based system that automates FAQ maintenance on a web server. Versions 2.712 and lower contain a cross-site scripting vulnerability where an attacker can craft a URL with malicious code in the "cmd" argument. If a legitimate user activates the URL, malicious code may be executed on the client computer with the security context of the web server.

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Affected Systems:
Systems running or accessing Faq-O-Matic version 2.712 or lower.

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Attack Scenarios:
An attacker crafts a URL that, when activated by a legitimate user, obtains the session cookie. This can allow the attacker to pose as the user for the duration of the session.

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Ease of Attack:
Simple. A proof of concept exists.

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False Positives:
If a legitimate remote user accesses fom.cgi, this rule may generate an alert.

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False Negatives:
None known.

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Corrective Action:
Upgrade to Faq-O-Matic version 2.713 or higher. Upgrades are available at http://faqomatic.sourceforge.net.

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Contributors:
Sourcefire Research Team
Brian Caswell <[e-mail]>
Nigel Houghton <[e-mail]>
Sourcefire Technical Publications Team
Jennifer Harvey <[e-mail]>

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Additional References:
Bugtraq
http://www.securityfocus.com/bid/4023

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