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Vahagn Vardanian

Co-founder and CTO of RedRays

Missing authorization check in RFC with call transaction, SAP security note 1547271

SAP Note 1547271

SAP security note 1547271, "Missing authorization check in RFC with call transaction". Below are the symptom and SAP recommended solution.

Description

Symptom

An authenticated user can use RFC enabled functions of BW to which access should be restricted. This may result in an escalation of privileges.

Solution

An explicit authority check on transaction code (authorization object S_TCODE) is introduced.

Reason and prerequisites

Besides the S_RFC, the RFC module does not contain authorization checks for verifying an authenticated user’s authorization to access some of its functions. This may result in undesired system behavior.

Full note on SAP: SAP Support Launchpad note 1547271

Detailed exploitation and proof-of-concept material for this note is maintained in the RedRays Security Platform. For access, contact [email protected].

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