SQL Injection with ABAP - Virtual Forge

35 Pages·2011·1.21 MB·English

by  Markus Schumacher

Hack In The Box Conference 2011, Amsterdam
Dr. Markus Schumacher
PPT Masterfolie
SQL Injection with ABAP
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Ascending from Open SQL Injection to ADBC Injection
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Who am I
PPT Masterfolie
Andreas Wiegenstein
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CTO and founder of Virtual Forge, responsible for R&D
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SAP Security Researcher, active since 2003
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Speaker at SAP TechEd 2004, 2005, 2006, DSAG 2009, BlackHat 2011
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Co-Author of "Secure ABAP Programming" (SAP Press)

Virtual Forge GmbH
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SAP security product company based in Heidelberg, Germany
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Focus on (ABAP) application security services
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ABAP Security Scanner
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ABAP Security Guidelines
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ABAP Security Trainings
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SAP Security Consulting
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Belief: "Our SAP system is secure."
PPT Masterfolie
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Roles & Authorizations
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Segregation of Duties
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Secure Configuration & System / Service Hardening
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Encryption
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Secure Network Infrastructure
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Password Policies
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Patch Management
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Identity Management
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Single Sign-on

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Reality-Check
PPT Masterfolie
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Inhalt
PPT Masterfolie
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1. About ABAP
2. SQL Injection revisited
3. Open SQL (OSQL) Overview, Risks & Mitigations
4. Native SQL
5. ABAP Database Connectivity (ADBC)

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1P.P …T aMnads ttehrefonl iteh e re was ABAP
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Advanced Business Application Programming
PPT Masterfolie
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Proprietary language, exact specification not (freely) available
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Platform-independent code
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Client separation built-in *
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Integrated auditing capabilities
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System-to-System calls via SAP Remote Function Call (RFC)
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Client-Server communication via SAP GUI (DIAG protocol)
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Various programming paradigms:
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Programs & Forms, Reports, Function Modules, Dynpros
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Classes & Methods, Business Server Pages, Web Dynpro ABAP
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Integrated platform-independent SQL Standard: Open SQL
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Built-in authentication, roles and (explicit) authorization model
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Thousands of well-known standard programs and database tables
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150+ Million Lines of Code in an ECC6.0 System

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A closer look at Client Separation
PPT Masterfolie

Client Separation
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Client 007

Client 023

Client 042
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Users log on to "clients"
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Clients represent business (and user) data of independent organizations
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The SAP system implicitly separates client data in the database
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Done via a special column that indicates, if a table is client-dependent
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ABAP code is client-independent. Every program is available on all clients

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Attack Surface of ABAP
PPT Masterfolie

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2P.P STQ MLa Isntjeercfotiloien revisited
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