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Bug #24 PHO allowing the overwriting of environment variables
Submitted: 1998-01-30 13:39 UTC Modified: 1998-01-30 20:54 UTC
From: alden at math dot ohio-state dot edu Assigned:
Status: Closed Package: Other
PHP Version: 3.0 Latest CVS OS: Solaris 2.6
Private report: No CVE-ID: None
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 [1998-01-30 13:39 UTC] alden at math dot ohio-state dot edu 
Hi,
  According to the php 2.0 doc's (I am using 3.0) PHP isn't
supposed to allow the overwriting of environment variables
by adding "?REMOTE_HOST=some.bogus.host".  I have the
following file "test.php3" in my doc root:

<html><head><title>test</title></head><body>
<?echo "remote_host=$REMOTE_HOST";?>
</body></html>

And then I pointed netscape at:

http://my.machine.edu/test.php3?REMOTE_HOST=some.bogus.host

And it returned:

remote_host=some.bogus.host

Am I missing something?

On a similar topic, I need to get at the REMOTE_USER environment
variable without the user being able to change this.  I use
the .htaccess method of authentication, but I need to know
the username of the remote user.  In my old perl scripts I
just checked REMOTE_USER, but PHP seems to allow the user
to overwrite this.

...thnx,
...dave alden

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AllCommentsChangesGit/SVN commitsRelated reports
 [1998-01-30 20:54 UTC] zeev 
Fixed.
Environment variables will now overwrite any GET/POST/Cookie
variable.
 
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