Bug #16653 Updated: $PHP_AUTH_PW accessible when authentication is done by Apache

ID: 16653 Updated by: sniper@php.net Reported By: stefan.peer@tiwag.at -Status: Open +Status: Closed Bug Type: Apache related Operating System: SuSE Linux 7.x PHP Version: 4.1.2 New Comment: This bug has been fixed in CVS. You can grab a snapshot of the CVS version 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. Thank you for the report, and for helping us make PHP better. Previous Comments: ------------------------------------------------------------------------ [2002-04-17 03:56:53] stefan.peer@tiwag.at This bug is security related. The password of any user which is authenticated via Apache is still accessible through $PHP_AUTH_PW to any user who is able to execute php-scripts. I'm using mod_auth_samba to authenticate users with their windows-passwords. http://www.php.net/manual/en/features.http-auth.php states, that "In order to prevent someone from writing a script which reveals the password for a page that was authenticated through a traditional external mechanism, the PHP_AUTH variables will not be set if external authentication is enabled for that particular page. In this case, the $REMOTE_USER variable can be used to identify the externally-authenticated user. Configuration Note: PHP uses the presence of an AuthType directive to determine whether external authentication is in effect. Remember to avoid this directive for the context where you want to use PHP authentication (otherwise each authentication attempt will fail)." Unless I'm completely mistaken, $PHP_AUTH_USER and $PHP_AUTH_PW are set, regardless of the existence of the 'AuthType'-directive. ________________________________________________________ testme.php: <?=$PHP_AUTH_USER?> <br> <?=$PHP_AUTH_PW?> <br> <?=$REMOTE_USER?> Configuration: --------------- * SuSE Linux 7.3 * Apache 1.3.23: ... <Location "/testme.php"> AuthType Basic Options FollowSymLinks AllowOverride None AuthSambaEnabled On AuthAuthoritative On AuthName "php_auth_pw Test" AuthSambaDomain tiwag:exchange,hvntsna require valid-user Order Allow,Deny Allow from all </Location> ... Compile options: LIBS="/lib/security/pam_smb_auth.so -lpam /usr/lib/libdbm.so" \ ./configure --prefix=/usr/local/apache \ --add-module=src/modules/extra/mod_auth_samba.c \ --enable-module=access \ --enable-module=actions \ --enable-module=alias \ --enable-module=asis \ --enable-module=auth \ --enable-module=auth_digest \ --enable-module=autoindex \ --enable-module=cgi \ --enable-module=dir \ --enable-module=env \ --enable-module=expires \ --enable-module=headers \ --enable-module=imap \ --enable-module=include \ --enable-module=info \ --enable-module=log_config \ --enable-module=mime \ --enable-module=mime_magic \ --enable-module=negotiation \ --enable-module=setenvif \ --enable-module=so \ --enable-module=speling \ --enable-module=ssl \ --enable-module=status \ --enable-module=userdir \ --server-uid=httpd \ --server-gid=httpd \ --with-perl=/usr/bin/perl * PHP 4.1.2 Compile options: ./configure --prefix=/usr/local/php \ --with-apxs=/usr/local/apache/bin/apxs \ --enable-magic-quotes \ --with-bz2 \ --with-java=/usr/lib/java \ --with-mcrypt \ --enable-mailparse \ --with-mysql=/usr/local/mysql \ --with-ncurses \ --with-pdflib=/usr/lib \ --with-mm=/usr/lib \ --enable-sockets \ --enable-trans-sid \ --enable-memory-limit \ --enable-shared \ --enable-static \ --enable-tsrm-pthreads \ --with-gnu-ld ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=16653&edit=1