Hello FD-Reader

Event 10053 logs the TDE masterkey in cleartext into the trace file.
Oracle fixed this problem with CPU January 2006.

http://www.red-database-security.com/advisory/oracle_tde_wallet_password
.html

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Name Event 10053 logs TDE wallet password in cleartext
Systems Oracle Database 10g Release 2
Severity High Risk
Category Information disclosure
Vendor URL http://www.oracle.com/
Author Alexander Kornbrust (ak at red-database-security.com)
Date 17 January 2005 (V 1.00)
Oracle Bug 5802023
Time to fix 190 days

Details:
########
The event 10053 is storing the masterkey of Oracle Transparent Data
Encryption unencrypted in a trace-file. A skilled attacker or
non-security DBA could set this special event to get the plaintext
masterkey for the TDE encryption.

Test case:
##########
SQL> alter session set events='10053 trace name context forever, level
1';

Session altered.

SQL> ALTER SYSTEM SET WALLET OPEN IDENTIFIED BY "secretpassword";

System altered.
######### Test case ######

######### Excerpt from trace file ############
[] Current SQL statement for this session:
ALTER SYSTEM SET WALLET OPEN IDENTIFIED BY "secretpassword"
[]
######### Excerpt from trace file ############

Patch Information:
##################
Oracle fixed this issue with the patches from the critical patch update
january 2006 for Oracle 10g Release 2.

History:
########
11-jul-2005 Oracle secalert was informed
12-jul-2005 Bug confirmed
17-jan-2006 Oracle published the Critical Patch Update January 2006
(CPU January 2006)
17-jan-2006 Red-Database-Security published this advisory

(c) 2006 by Red-Database-Security GmbH
http://www.red-database-security.com

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