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Bypassing Oracle dbms_assert

Hey all,

Today I released a new whitepaper "Bypassing Oracle dbms_assert". This 
technique makes many already fixed Oracle vulnerabilities (SQL Injection) 
exploitable again.

URL:
http://www.red-database-security.com/wp/bypass_dbms_assert.pdf 
 
Summary:
By using specially crafted parameters (in double quotes) it is possible to 
bypass the input validation of the security package dbms_assert and inject 
SQL code. This makes dozens of already fixed Oracle vulnerabilities exploitable 
in all versions of Oracle again (8.1.7.4 - 10.2.0.2, fully patched with Oracle 
CPU July 2006). I informed Oracle about this problem end of April 2006. Oracle 
has no problem with the release of this information (?Oracle sees no problem 
with your publication of the white paper.?)


 Kind Regards

 Alexander Kornbrust

 Red-Database-Security GmbH
 http://www.red-database-security.com