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From Jez Hancock <>
Subject Re: [users@httpd] Strange Error log msgs
Date Thu, 05 Feb 2004 09:38:18 GMT
On Wed, Feb 04, 2004 at 12:27:00PM -0500, Adam Goldstein wrote:
> Has anyone ever seen this appear in an (Apache2.0.47) error_log?
> su: invalid option -- a
> Try `su --help' for more information.
Someone may be trying to execute the 'su' command from an HTML form and
the error is being logged to the error_log.  I have a PHP script that
displays man pages and if a user enters a page that doesn't exist the 
error is dumped to the error log file:

No manual entry for <some non-existent manpage>

There's an entry in my blog at about
exploiting CGI scripts which might be of interest.

Jez Hancock
 - System Administrator / PHP Developer  - Another FreeBSD Diary        - ipfw peruser traffic logging

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