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Buffer Overflow in DBMS_REPCAT_ADMIN in Oracle 9i

Name Buffer Overflow Oracle DBMS_REPCAT_ADMIN in Oracle 9i (up to 9.2.0.4)
Systems Affected Oracle 9i
Severity Medium Risk
Category Buffer Overflow
Credit Esteban Martinez Fayo (<argeniss>dot<com>)
Exploit http://www.appsecinc.com
Date 10 May 2005 (V 1.00)

Details

Buffer Overflow in DBMS_REPCAT_ADMIN. This package has EXECUTE permission granted to SYSDBA or EXECUTE_CATALOG_ROLE. Members of these groups can exploit this vulnerability and crash the database or execute arbitrary code.


Example
BEGIN
DBMS_REPCAT_ADMIN.REGISTER_USER_REPGROUP ('sys', 'longstring', '');
END;

BEGIN
DBMS_REPCAT_ADMIN.UNREGISTER_USER_REPGROUP ('sys', 'longstring', '');
END;


Patch Information
Apply the latest Oracle Security patches (e.g. CPU October 2004 or at least alert 68).





2005 by Red-Database-Security GmbH - last update 02-nov-2005

Definition Exploit
An exploit is a common term in the computer security to refer to a piece of software that take advantage of a bug or vulnerability leading to a privilege escalation or d.o.s. on a computer system.
Computer security experts are using exploit code to test if a patch is working properly.