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DSChat Script Insertion and PHP Code Execution Vulnerabilities
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Secunia Advisory:
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SA20258
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Release Date:
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2006-05-24
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Last Update:
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2006-05-29
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Popularity:
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4,952 views
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Critical:
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Highly critical
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Impact:
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Cross Site Scripting
System access
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | DSChat 1.x
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| CVE reference: | CVE-2006-2592
CVE-2006-2605
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Description:
Two vulnerabilities have been discovered in DSChat, which can be exploited by malicious people to conduct script insertion attacks and compromise a vulnerable system.
1) Input passed to the "ctext" parameter in send.php isn't properly sanitised before being used. This can be exploited to inject arbitrary HTML and script code, which will be executed in a user's browser session in context of an affected site when the malicious chat message is viewed.
2) Input passed to the "Nickname" field when entering a chat isn't properly sanitised before being used to create a file in the "users" directory. This can e.g. be exploited to create a malicious PHP script with arbitrary content.
The vulnerabilities have been confirmed in version 1.0. Other versions may also be affected.
Solution:
Edit the source code to ensure that input is properly sanitised.
Provided and/or discovered by:
1) Nomenumbra
2) Discovered by anonymous
Changelog:
2006-05-29: Added CVE references.
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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