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[SA16980] TWiki "%INCLUDE" Shell Command Injection Vulnerability
From: Secunia Security Advisories (sec-adv
secunia.com)
Date: Wed Sep 28 2005 - 09:54:15 CDT
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TITLE:
TWiki "%INCLUDE" Shell Command Injection Vulnerability
SECUNIA ADVISORY ID:
SA16980
VERIFY ADVISORY:
http://secunia.com/advisories/16980/
CRITICAL:
Highly critical
IMPACT:
System access
WHERE:
From remote
SOFTWARE:
TWiki
http://secunia.com/product/4248/
DESCRIPTION:
A vulnerability has been reported in TWiki, which can be exploited by
malicious people to compromise a vulnerable system.
Input passed to the "rev" attribute in the "%INCLUDE" variable isn't
properly sanitised before being used in a shell expression. This can
be exploited to inject arbitrary shell commands via e.g. the "|" pipe
character.
Example:
%INCLUDE{ "Main.TWikiUsers" rev="2|[code]" }%
This is related to:
SA16820
The vulnerability has been reported in versions
TWikiRelease03Sep2004, TWikiRelease02Sep2004, TWikiRelease01Sep2004,
and TWikiRelease01Feb2003.
SOLUTION:
Apply patches.
http://twiki.org/cgi-bin/view/Codev/SecurityAlertExecuteCommandsWithInclude
PROVIDED AND/OR DISCOVERED BY:
The vendor credits JChristophFuchs and JoseLuna.
ORIGINAL ADVISORY:
http://twiki.org/cgi-bin/view/Codev/SecurityAlertExecuteCommandsWithInclude
OTHER REFERENCES:
SA16820:
http://secunia.com/advisories/16820/
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