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Bug #42750 if session_name contains a dot, a new session is started every request
Submitted: 2007-09-24 22:28 UTC Modified: 2007-09-26 17:22 UTC
Votes:1
Avg. Score:4.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: dominik dot dorn at gmail dot com Assigned:
Status: Not a bug Package: Session related
PHP Version: 5.2.4 OS: Gentoo Linux
Private report: No CVE-ID: None
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From: dominik dot dorn at gmail dot com
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 [2007-09-24 22:28 UTC] dominik dot dorn at gmail dot com 
Description:
------------
i was trying to fool a little around and tried to set the
session_name to "MYSITE.NET_SessionID'.

PHP sets a cookie with the name ASP.NET_SessionID
but seems not to read it at the next page request.



Reproduce code:
---------------
I tried this with the session_name("ASP.NET_SessionID"); function
and with setting it thru php.ini
session.name = MYSITE.NET_SessionID

i even tried to surround the text with quotes in php.ini like
session.name = "MYSITE.NET_SessionID"
or
session.name = 'MYSITE.NET_SessionID"

Expected result:
----------------
php reads the session id from the cookie names "MYSITE.NET_SessionID' and then reads the sessiondata with the specified sessionhash

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 [2007-09-25 09:16 UTC] jani@php.net 
It's propably the fact that PHP changes dots in incoming data into _ but I need to investigate a bit.
 [2007-09-25 09:58 UTC] jani@php.net 
From the manual: "It should contain only alphanumeric characters".
This propably should have some sort of check for invalid chars used in the name.
 [2007-09-25 12:08 UTC] dominik dot dorn at gmail dot com 
well then it should not even set the cookie with the dot in it, shouldn't it? 

Could it be, that the "only alphanumeric" thing is a relict from the register_globals=on time? 

Even if the manual says, the session_id should only contain alphanumeric characters, it does not say that it has to. 

I think there is a just a simple bug in the method, which reads the session cookie back in, because setting the cookie works. 

thanks for your help
 [2007-09-25 14:44 UTC] jani@php.net 
Note: register_globals is still there, it's just not enabled by default so we still have to take this dot-issue into count.
 [2007-09-26 17:22 UTC] iliaa@php.net 
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php

.
 
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