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PeteFinnigan.com Limited Oracle Security Advisory - Jan 2008 Critical Patch Update


Description

Oracle Ultra-Search uses database and Oracle text functionallity to provide a uniform search function that is fully integrated with the SQL language and where it allows full text search capabilities within the database. For more details see Introduction to Oracle Ultra Search. The issue located by PeteFinnigan.com Limited relates to excessive privileges assigned to the WKSYS database schema/user account.

Risk

If the WKSYS schema exists then the risk is still present without application of the patch. The CVSS score is 3.0 which is low but the risk increases if the schema is accessible due to a weak password or an additional attack vector that allows code to run as WKSYS. Access to the schema, either directly or indirectly are required to expliot this issue.

Workaround

If the Oracle Ultra-Search functionallity is not required either directly or indirectly then ensure that this component is not installed. This can be verified by checking if the WKSYS schema is present in the database.

Versions affected

The following Oracle database versions are affected

  • Database
    • 9.2.0.8 and lower
    • 10.1.0.5 and lower
    • 10.2.0.3 and lower
  • Application Server
    • 9.0.4.3 and lower
    • 10.1.2.2 and lower
  • Collaboration Suite
    • 10.1.2 and lower

Patch Information

PeteFinnigan.com Limited advises customers to apply the January 2008 CPU patch as soon as is practical. See Oracle's advisory for details of the patch availability matrix.

Credit

Pete Finnigan of PeteFinnigan.com Limited discovered this vulnerability.

About PeteFinnigan.com Limited

PeteFinnigan.com Limited specialises in consultancy services, training and products related to all aspects of Oracle security from design, breach analysis, hardening, security audits, IT healthchecks, encryption, specialised training, products and more. We are market leaders in providing security services to customers who need to secure data held in Oracle databases. For more details please contact info@petefinnigan.com in the first instance.