SAP Security Vulnerabilities: Detection Isn't Enough — They Need to Be Fixed

SAP systems are at the heart of enterprise data. Financial records, customer information, supply chain data, HR records... it all lives in SAP. And the security of that data is directly tied to the company's reputation and regulatory compliance.

But most companies treat SAP security purely as a question of authorization roles and profiles. Vulnerabilities in custom developments typically slip through the cracks — until they surface during an audit or, worse, in a security breach.

Hidden Risks in Custom Developments

A typical SAP system contains tens — sometimes hundreds — of Z programs, function modules, enhancements and user-exits. These custom developments have been written over the years by different developers to different standards. And many of them harbor critical security flaws:

SQL Injection

Dynamic SQL such as SELECT ... WHERE (dynamic_condition) is fairly common in ABAP. If that dynamic condition is fed by user input and isn't properly sanitized, you get SQL injection risk.

" Risky code
SELECT * FROM mara INTO TABLE lt_mara
  WHERE (lv_where_clause).  " lv_where_clause comes from the user!

Missing Authorization Checks

Standard SAP transactions perform authorization checks. But in custom programs, AUTHORITY-CHECK statements are often missing or use the wrong object.

Sensitive Data Leaks

ALV reports, export functions or log tables can expose sensitive data (salary information, national IDs, customer data) without proper masking.

Hardcoded Credentials

Embedding usernames and passwords directly in code — for RFC destinations, mail server connections or third-party integrations — is still a common mistake.

Limits of Existing Security Tools

There are SAP security scanning tools on the market. But they share a common limitation: they only report. They give you a multi-hundred-page report — "this program has SQL injection risk", "this function module is missing an authorization check"...

Then what? You have to take that report and manually fix every finding. Which means:

• A developer must be assigned to each finding
• The developer must understand the existing code
• They have to make the fix and test it
• And then transport it

If there are hundreds of findings, this can take months.

VEX-HUB: Detect and Fix

This is where VEX-HUB's security scan module comes in. It doesn't just detect — it fixes automatically.

Continuous Scanning

VEX-HUB scans your system continuously, not just once. Every new development and every change goes through the security scan automatically. New vulnerabilities are caught before they take root.

Smart Fixing

When an SQL injection risk is detected, VEX-HUB:

1. Pinpoints the exact location and impact of the risk
2. Understands the context of the existing code (what it does, why dynamic SQL was used)
3. Suggests a safe alternative
4. Applies the fix once you approve

The existing business logic is preserved through the fix. The program continues to work as before — just with the vulnerability closed.

Reporting and Tracking

Every scan is reported in detail:

• Vulnerabilities found and risk levels
• Items fixed automatically
• Cases requiring manual intervention
• Security score trend over time

Audit Readiness

For organizations subject to SAP security audits — under banking, capital markets, GDPR/KVKK or internal audit — VEX-HUB provides a major advantage. Continuous scanning and fixing means:

• No "fire-fighting" mode before audits
• Security findings stay at a minimum
• Tidy reports are always ready for auditors

Conclusion

SAP security isn't limited to authorization roles. Vulnerabilities in custom developments are at least as important as standard SAP security. With VEX-HUB you don't just detect them — you fix them automatically and keep your system continuously secure.

For more on SAP security scanning, get in touch.