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TCExam PHP Code Execution and Cross-Site Scripting
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Secunia Advisory:
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SA25008
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Release Date:
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2007-05-01
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Last Update:
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2007-05-07
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Popularity:
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4,357 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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Vendor Patch
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| Software: | TCExam 4.x
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Instant alerts on relevant vulnerabilities 
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| CVE reference: | CVE-2007-2430
CVE-2007-2431
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Description:
rgod has discovered two vulnerabilities in TCExam, which can be exploited by malicious people to conduct cross-site scripting attacks or to compromise a vulnerable system.
1) Input passed in the "SessionUserLang" cookie to public/code/index.php is not properly sanitised before it is written to the filename after the last slash. This can be exploited to execute arbitrary PHP code.
2) Input passed to the "_SERVER[SCRIPT_NAME]" parameter in public/code/index.php is not properly sanitised before it is returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.
The vulnerabilities are confirmed in version 4.0.011. Prior versions may also be affected.
Solution:
Update to version 4.1.000.
Provided and/or discovered by:
rgod
Changelog:
2007-05-07: Added CVE reference.
Original Advisory:
http://milw0rm.com/exploits/3816
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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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