Bug #28632 [Com]: LOAD DATA LOCAL security hole problem is stil not solved

Edit report at https://bugs.php.net/bug.php?id=28632&edit=1 ID: 28632 Comment by: dralpha400 at gmail dot com Reported by: unknown at masterhost dot ru Summary: LOAD DATA LOCAL security hole problem is stil not solved Status: Closed Type: Bug Package: MySQL related Operating System: FreeBSD PHP Version: 4.3.5RC2?-4.3.7 Block user comment: N Private report: N New Comment: I have the same bug in almaheron.com Previous Comments: ------------------------------------------------------------------------ [2004-06-04 17:27:09] iliaa@php.net This bug has been fixed in CVS. 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/. Thank you for the report, and for helping us make PHP better. ------------------------------------------------------------------------ [2004-06-04 16:37:39] unknown at masterhost dot ru The problem presents with older versions too. I have checked it with 4.3.5RC2 and 4.3.7 on FreeBSD 4.9, but it seems other versions after May 2003 are vulnerable, and it's OS-independent. ------------------------------------------------------------------------ [2004-06-04 16:22:25] unknown at masterhost dot ru Description: ------------ The file accesses with 'LOAD DATA LOCAL INFILE' are made by mysql client library, so you can access any file which webserver process can access to, IGNORING open_basedir option! This problem has been reported about year ago (Bug #23779 LOAD DATA LOCAL isn't respecting open_basedir), and you tried to resolve it: http://cvs.php.net/diff.php/php-src/ext/mysql/php_mysql.c?r1=1.174.2.13&r2=1.174.2.14&ty=h /* disable local infile option for open_basedir */ if (strlen(PG(open_basedir))) { client_flags ^= CLIENT_LOCAL_FILES; } You have used XOR, so if user specified options '128' as fifth parameter for mysql_connect() with enabled open_basedir restrictions, it should disable LOAD DATA LOCAL. But with '0' options given it enables LOAD DATA LOCAL, so we have it enabled by default! It seems it should be not just a XOR, may be client_flags &= (32767^CLIENT_LOCAL_FILES); or something like this. Reproduce code: --------------- <?php $link = mysql_connect('host', 'user', 'password', false, 0); $db_selected = mysql_select_db('database', $link); $result = mysql_query("LOAD DATA LOCAL INFILE 'datafile.txt' INTO TABLE test"); if (!$result) { die('Invalid query: ' . mysql_error()); } mysql_close($link); ?> Expected result: ---------------- There shoule be an error: Invalid query: The used command is not allowed with this MySQL version But there isn't, query is successful... Actual result: -------------- Data from file is inserted to 'test' table. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=28632&edit=1