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Bug #22806 Autogenerated crypt salt is not random
Submitted: 2003-03-20 11:36 UTC Modified: 2003-03-31 02:59 UTC
From: anj at aps dot anl dot gov Assigned:
Status: Closed Package: *Encryption and hash functions
PHP Version: 4.3.1 OS: Solaris 8
Private report: No CVE-ID: None
View Developer Edit
 [2003-03-20 11:36 UTC] anj at aps dot anl dot gov 
Ever since we upgraded to from PHP 4.1.2 to 4.3.1 (we're using Sun's iPlanet server and the nsapi BTW), the autogenerated crypt salt being returned by new accounts in our password-protected area has been "..".

Using this test script:

<html><body>
<?php echo crypt("1234567890"); ?>
</body></html>

I find that although not always the case, very often (and especially if I wait for some time before reloading) the result returned from the above is ..EXlUiP8mHCU.

I have inserted a workaround to my PHP code now, and as I don't build PHP here it would be tricky for me to test any fix, but I thought the developers ought to know about this.

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 [2003-03-20 17:27 UTC] sniper@php.net 
Please try using this CVS snapshot:

  http://snaps.php.net/php4-STABLE-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php4-win32-STABLE-latest.zip

I can not reproduce this.
If this happens with the latest stable snapshot, please
add your configure line here.
 [2003-03-21 17:20 UTC] anj at aps dot anl dot gov 
After further testing I note that I can only see this problem when using the NSAPI interface; when run through the CGI (command-line) version it doesn't occur.  I guess that indicates the problem is with NSAPI, so I've changed the bug category to "iPlanet related".

As I said before I'm not the sysadmin for our webserver, but I am trying to get the php4-STABLE-200303202230 version installed to test - I'll report back if I succeed.

The configure line on the 4.3.1 install that definitely exhibits the problem is reported by phpinfo() as this:
'./configure' '--prefix=/opt/local/php' '--with-mysql=/usr/local/mysql' '--with-nsapi=/usr/local/iplanet/server4' '--with-config-file-path=/etc' '--enable-libgcc'
 [2003-03-23 11:29 UTC] thetaphi@php.net 
I cannot reproduce this. And: the nsapi module has nothing to do with crypt.
The only difference is that PHP is always reinitialized when running as cgi. Could be that it always uses same crypt salt since restarting the webserver.
 [2003-03-24 03:35 UTC] sniper@php.net 
Set to 'Open' when you really give the feedback of whether the snapshot works or not.
 [2003-03-24 03:38 UTC] sniper@php.net 
And please check the line with HAVE_RAND_R in main/php_config.h, is it defined to 1 ?
 [2003-03-27 15:03 UTC] anj at aps dot anl dot gov 
This bug is present when using php4-STABLE-200303202230.

main/php_config.h does have the line
  #define HAVE_RAND_R 1

As I said before, this only occurs when I use the nsapi interface from Sun's iPlanet server (SERVER_SOFTWARE is iPlanet-WebServer-Enterprise/4.1); with the command-line/cgi interface to PHP the salt is always random.
 [2003-03-31 02:59 UTC] sniper@php.net 
This bug has been fixed in CVS.

In case this was a PHP problem, snapshots of the sources are packaged
every three hours; this change will be in the next snapshot. You can
grab the snapshot at http://snaps.php.net/.
 
In case this was a documentation problem, the fix will show up soon at
http://www.php.net/manual/.

In case this was a PHP.net website problem, the change will show
up on the PHP.net site and on the mirror sites in short time.
 
Thank you for the report, and for helping us make PHP better.
 
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