bugtraq - Oracle Question Slightly OT

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Date: Wed, 29 Jun 2005 13:34:38 -0400
From: "Ginski, Richard J." <rginski@...pinellas.fl.us>
To: <bugtraq@...urityfocus.com>
Subject: Oracle Question  Slightly OT

Forgive me for this being slightly off topic.  We've checked Oracle's
site, including posting to their "Technology Network", and have yet to
find a best practices document for securing Oracle databases. Am I
missing something? ... Or should something this obvious be available on
Oracle's site? Can anyone provide links to such information?

-----Original Message-----
From: Joshua Wright [mailto:jwright@...borg.com] 
Sent: Wednesday, June 29, 2005 10:16 AM
To: bugtraq@...urityfocus.com
Subject: Auditing Privilged Oracle Passwords - hashattack

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Hash: SHA1

I've put together a tool that can be used to build a table of Oracle
password hashes from a dictionary file for a designated username.
Hashes are calculated by creating a user account similar to the target
account to be audited and repeatedly changing the password with "ALTER
USER" for each dictionary word, storing the hash for each password in a
table.

Once the table of hashes is built, a simple SELECT can be issued to
determine if the password hash for a target user is a simple dictionary
word:

SQL> select h.username, h.password, h.hash
  2  from hashattack h, dba_users d
  3  where d.password = h.hash and h.username = 'SYS';

USERNAME   PASSWORD             HASH
- ---------- -------------------- --------------------
SYS        KILTPLEAT            2BBDC477FFB28563

SQL>

Written in PL/SQL, available at
http://802.11ninja.net/code/hashattack-0.1.tgz,
http://802.11ninja.net/code/hashattack-0.1.tgz.asc

Comments, questions, concerns welcome.

- -Josh
- --
- -Joshua Wright
jwright@...borg.com

2005-2006 pgpkey: http://802.11ninja.net/pgpkey.htm
fingerprint: F00E 7A42 8375 0C55 964F E5A4 4D2F 22F6 3658 A4BF

Today I stumbled across the world's largest hotspot.  The SSID is
"linksys".
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