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Vahagn Vardanian

Vahagn Vardanian

Co-founder and CTO of RedRays

CVE-2019-0283 SAP NetWeaver Process Integration (Adapter Engine) vulnerable to Digital Signature Spoofing, SAP security note 2747683

Description

It is possible to spoof XML signatures and send arbitrary requests to the server via PI Axis adapter. These requests will be accepted by the PI Axis adapter even if the payload has been altered, especially when the signed element is the body of the xml document.

Some well known impacts of the Digital Signature Spoofing Vulnerability are:

  • Arbitrary requests can be sent and accepted by the server, completely bypassing the signature security mechanism in place.
  • Attacker can modify some critical information.
  • In some cases attacker can get some information from the spoofing signer

Available fix and Supported packages

  • SAP_XIAF | 7.10 | 7.11
  • SAP_XIAF | 7.30 | 7.30
  • SAP_XIAF | 7.31 | 7.31
  • SAP_XIAF | 7.40 | 7.40
  • SAP_XIAF | 7.50 | 7.50
  • XI ADAPTER FRAMEWORK 7.10 | SP021 | 000009
  • XI ADAPTER FRAMEWORK 7.10 | SP022 | 000011
  • XI ADAPTER FRAMEWORK 7.10 | SP023 | 000003
  • XI ADAPTER FRAMEWORK 7.10 | SP024 | 000000
  • XI ADAPTER FRAMEWORK 7.10 | SP025 | 000000
  • XI ADAPTER FRAMEWORK 7.11 | SP015 | 000018
  • XI ADAPTER FRAMEWORK 7.11 | SP016 | 000013
  • XI ADAPTER FRAMEWORK 7.11 | SP017 | 000011
  • XI ADAPTER FRAMEWORK 7.11 | SP018 | 000007
  • XI ADAPTER FRAMEWORK 7.11 | SP019 | 000000
  • XI ADAPTER FRAMEWORK 7.11 | SP020 | 000000
  • XI ADAPTER FRAMEWORK 7.30 | SP016 | 000020
  • XI ADAPTER FRAMEWORK 7.30 | SP017 | 000014
  • XI ADAPTER FRAMEWORK 7.30 | SP018 | 000013
  • XI ADAPTER FRAMEWORK 7.30 | SP019 | 000003
  • XI ADAPTER FRAMEWORK 7.30 | SP020 | 000000
  • XI ADAPTER FRAMEWORK 7.31 | SP021 | 000051
  • XI ADAPTER FRAMEWORK 7.31 | SP022 | 000042
  • XI ADAPTER FRAMEWORK 7.31 | SP023 | 000020
  • XI ADAPTER FRAMEWORK 7.31 | SP024 | 000007

Affected component

    BC-XI-CON-AXS
    Axis Extention for SOAP Adapter

CVSS

Score: 7.1
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:N

PoC

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

URL

https://launchpad.support.sap.com/#/notes/2747683

TAGS

#Spoofing-of-digital-signatures
#PI-Axis-Adapter
#&160-CVE-2019-0283

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