WebCalendar Arbitrary File Retrieval Vulnerability - Advisories

WebCalendar Arbitrary File Retrieval Vulnerability

Secunia Advisory:	SA9312
Release Date:	2003-07-21
Last Update:	2003-07-22

Critical:	Less critical
Impact:	Exposure of system information Exposure of sensitive information
Where:	From remote
Solution Status:	Unpatched

Software:	WebCalendar 0.9.x

	This advisory is currently marked as unpatched! - Companies can be alerted when a patch is released!

Description: A vulnerability has been reported in WebCalendar, which can be exploited by malicious people to include arbitrary files. The vulnerability is caused due to an input validation error in "login.php" and "week_ssi.php" making it possible to supply arbitrary paths to files in the variable "$user_inc". This can be exploited by supplying a path to any file using "../../some_file". Examples: http://[victim]/login.php?user_inc=../../../etc/passwd http://[victim]/week_ssi.php?user_inc=../../../etc/passwd Solution: Edit the source code so that malicious characters are filtered. Provided and/or discovered by: noconflic



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1. WebCalendar "format" Cross-Site Scripting Vulnerability

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