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Vahagn Vardanian

Vahagn Vardanian

Co-founder and CTO of RedRays

External RFC callback to customer systems in SNOTE, SAP security note 2235513

Description

SCWN_NOTE_DOWNLOAD calls the RFC enabled function module on the OSS system of SAP to download the notes. If this RFC call is not calling OSS as expected, but some other system, then the RFC connection might be exploited, especially when the set of roles of the RFC technical user is not very restricted. As a result, there is a chance that one can use the callback mechanism to get access to the RFC-enabled Function Modules on customer system from this remote system.

Available fix and Supported packages

  • SAP_BASIS | 700 | 702
  • SAP_BASIS | 710 | 711
  • SAP_BASIS | 730 | 730
  • SAP_BASIS | 731 | 731
  • SAP_BASIS | 740 | 740
  • SAP_BASIS | 750 | 750
  • SAP_BASIS 700 | SAPKB70033 |
  • SAP_BASIS 701 | SAPKB70118 |
  • SAP_BASIS 702 | SAPKB70218 |
  • SAP_BASIS 710 | SAPKB71021 |
  • SAP_BASIS 711 | SAPKB71116 |
  • SAP_BASIS 730 | SAPKB73015 |
  • SAP_BASIS 731 | SAPKB73118 |
  • SAP_BASIS 740 | SAPKB74014 |
  • SAP_BASIS 750 | SAPK-75002INSAPBASIS |

Affected component

    BC-UPG-NA
    SAP Notes Assistant

CVSS

Score: 0

PoC

Detailed vulnerability information added to RedRays Security Platform. Contact [email protected] for details.

URL

https://launchpad.support.sap.com/#/notes/2235513

TAGS

#Note-Download
#RFC-Callback
#Note-Assistant

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