[NEWS] Multiple Oracle Application Server SQL Injection Vulnerabilities

From: SecuriTeam (support_at_securiteam.com)
Date: 11/06/03

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Date: 6 Nov 2003 12:10:25 +0200

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      Multiple Oracle Application Server SQL Injection Vulnerabilities
    ------------------------------------------------------------------------

    SUMMARY

    Oracle's RDBMS, a leading database server package, supports stored
    packages and procedures using PL/SQL. These packages and procedures can be
    accessed through Oracle's Application Server's Portal module. Oracle
    Application Server is a web server designed for Oracle applications. Many
    of the PL/SQL packages and procedures are vulnerable to SQL Injection.
    Using these vulnerabilities, an unauthenticated attacker can gain access
    to all data in the database from the Internet.

    DETAILS

    By default, Oracle Application Server allows unauthenticated users on the
    web to access PL/SQL packages and procedures stored in the RDBMS. When a
    PL/SQL procedure is executed, it either does so with the security rights
    of the invoker or the definer. In the latter case, if a PL/SQL procedure
    defined by the powerful 'SYS' or 'SYSTEM' login is executed by a low
    privileged user that user can access data they would not directly be able
    to access. By executing such a procedure via Oracle Application Server and
    with these SQL Injection vulnerabilities, it is possible for an attacker
    to gain access to all data within the database. For example, an attacker
    could gain access to account details including database usernames and
    password hashes. Whilst there are some vulnerable packages that do allow
    this level of access, most do not. Those known to be vulnerable include
    the packages used for Portal DB Forms, Hierarchy, XML Components, and List
    of Values. All of the packages are required by the RDBMS so they cannot be
    deleted.

    Fix Information:
    NGSSoftware alerted Oracle to these vulnerabilities between September and
    October 2002, last year. Oracle has reviewed the code of the PL/SQL
    Packages and procedures and fixed these issues. A patch is available from
    Metalink. Please see
    <http://otn.oracle.com/deploy/security/pdf/2003alert61.pdf>
    http://otn.oracle.com/deploy/security/pdf/2003alert61.pdf for more
    details.

    NGSSoftware advise Oracle database customers to review and install the
    patch as a matter of urgency.

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:david@ngssoftware.com> David
    Litchfield.

    ========================================

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