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Vahagn Vardanian

Co-founder and CTO of RedRays

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FI Potential Directory Traversal, SAP security note 1506843

SAP Note 1506843
SAP Security Note
High priority

SAP security note 1506843, "FI: Potential Directory Traversal", is a program error note released on September 2, 2011. Below are the symptom, SAP recommended solution and the affected software components.

ComponentFinancial Accounting > Accounts Payable > Basic Functions > Payment transfer (w/o DE, US)
CategoryProgram error
PriorityCorrection with high priority
TypeSAP Security Note
Version3
StatusReleased for Customer
Released onSeptember 2, 2011

Description

Symptom

There is a potential Directory Traversal vulnerability in the FI-AP-AP-B1 component. This vulnerability allows a malicious user to read arbitrary files on the remote server, potentially disclosing confidential information. Additionally, some programs may allow writing arbitrary files, which could corrupt data or alter system behavior.

Solution

Logical file names have been created to validate physical file names:

  • FI_RFEBFILUM00_FILE
  • FI_RFIDATEB00_FILE
  • FI_RFEBBE00_FILE
  • FI_RFEBBE00_NACC_FILE
  • FI_RFEBBECODA00_FILE
  • FI_RFEBNO00_FILE
  • FI_RFESR000_FILE

Logical File Paths Used:

  • FI_FBZ_FILE_PATH
  • FI_FTE_FILE_PATH
  • FI_FBAS_FILE_PATH

Reason and prerequisites

  • Programs within the correction instructions contain vulnerabilities for reading arbitrary files.
  • Some programs allow writing arbitrary files on the remote server.

References

Affected components

  • SAP_APPL, versions 31I to 605
  • SAP_BASIS, versions 46B to 710

Full note on SAP: SAP Support Launchpad note 1506843

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

#Directory Traversal #FI-AP-AP-B1 #Payment Transfer #Accounts Payable

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