Date: 17 Jan 2006 22:04:52 -0000
From: [email protected]
To: [email protected]Subject: Oracle Database 10g Rel. 2 - Event 10053 logs TDE wallet password
in cleartext
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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
SQL> 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
╘ 2006 by Red-Database-Security GmbH
http://www.red-database-security.com/advisory/oracle_cpu_jan_2006.html
