From:             bnies at bluewin dot ch
Operating system: Solaris 9
PHP version:      5.2.5
PHP Bug Type:     Session related
Bug description:  PHP Cookie expiration (2)

Description:
------------
Concerning Bug #43226 because it was set to 'bogus' and additional
comments are not allowed.

First: I did not ask for support.

The issue I submitted is concerning the HTTP headers that the PHP function
session_unregister() sends to the browser.

My suggestion was to send Cookie Expires and Cookie Max-Age together when
unregistering a PHP session to make sure that even with broken proxy or
browser implementations the session gets terminated.

This problem came across a broken proxy implementation that only treated
the Max-Age option and ignored the Expires option and then sent the session
cookie with the value 'deleted' back to the PHP application which then
treated it as a valid session.

See:

https://sourceforge.net/tracker/index.php?func=detail&aid=1829098&group_id=311&atid=100311

I don't mess with computer's time but some internet users might do this
and change the date to use expired software licenses. I don't know if the
PHP application or PHP itself sets the cookie expires date to one year in
the past. Maybe setting it to 1 January 1980 00:00 GMT is the safest way.

Bye,
Bernd


-- 
Edit bug report at http://bugs.php.net/?id=43439&edit=1
-- 
Try a CVS snapshot (PHP 4.4): 
http://bugs.php.net/fix.php?id=43439&r=trysnapshot44
Try a CVS snapshot (PHP 5.2): 
http://bugs.php.net/fix.php?id=43439&r=trysnapshot52
Try a CVS snapshot (PHP 5.3): 
http://bugs.php.net/fix.php?id=43439&r=trysnapshot53
Try a CVS snapshot (PHP 6.0): 
http://bugs.php.net/fix.php?id=43439&r=trysnapshot60
Fixed in CVS:                 http://bugs.php.net/fix.php?id=43439&r=fixedcvs
Fixed in release:             
http://bugs.php.net/fix.php?id=43439&r=alreadyfixed
Need backtrace:               http://bugs.php.net/fix.php?id=43439&r=needtrace
Need Reproduce Script:        http://bugs.php.net/fix.php?id=43439&r=needscript
Try newer version:            http://bugs.php.net/fix.php?id=43439&r=oldversion
Not developer issue:          http://bugs.php.net/fix.php?id=43439&r=support
Expected behavior:            http://bugs.php.net/fix.php?id=43439&r=notwrong
Not enough info:              
http://bugs.php.net/fix.php?id=43439&r=notenoughinfo
Submitted twice:              
http://bugs.php.net/fix.php?id=43439&r=submittedtwice
register_globals:             http://bugs.php.net/fix.php?id=43439&r=globals
PHP 3 support discontinued:   http://bugs.php.net/fix.php?id=43439&r=php3
Daylight Savings:             http://bugs.php.net/fix.php?id=43439&r=dst
IIS Stability:                http://bugs.php.net/fix.php?id=43439&r=isapi
Install GNU Sed:              http://bugs.php.net/fix.php?id=43439&r=gnused
Floating point limitations:   http://bugs.php.net/fix.php?id=43439&r=float
No Zend Extensions:           http://bugs.php.net/fix.php?id=43439&r=nozend
MySQL Configuration Error:    http://bugs.php.net/fix.php?id=43439&r=mysqlcfg

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