Bypassing Oracle dbms_assert

["Alexander Kornbrust" <ak () red-database-security com>]

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




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