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CVE-2018-2492 Missing XML Validation in SAP NetWeaver AS Java, SAP security note 2642680

Description

SAML 2.0 functionality in SAP NetWeaver AS Java does not sufficiently validate XML documents received from an untrusted source.

Some well-known impacts of the vulnerability for the missing XML validation are:

  • retrieval of arbitrary files from the server
  • denial-of-service conditions in successful exploits

Available fix and Supported packages

  • SECURITY-EXT | 7.20 | 7.20
  • SECURITY-EXT | 7.30 | 7.30
  • SECURITY-EXT | 7.31 | 7.31
  • SECURITY-EXT | 7.40 | 7.40
  • SECURITY-EXT | 7.50 | 7.50
  • SECURITY EXTENSIONS 7.20 | SP009 | 000016
  • SECURITY EXTENSIONS 7.30 | SP015 | 000004
  • SECURITY EXTENSIONS 7.30 | SP016 | 000004
  • SECURITY EXTENSIONS 7.30 | SP017 | 000003
  • SECURITY EXTENSIONS 7.30 | SP018 | 000003
  • SECURITY EXTENSIONS 7.30 | SP019 | 000000
  • SECURITY EXTENSIONS 7.31 | SP020 | 000003
  • SECURITY EXTENSIONS 7.31 | SP021 | 000003
  • SECURITY EXTENSIONS 7.31 | SP022 | 000002
  • SECURITY EXTENSIONS 7.31 | SP023 | 000000
  • SECURITY EXTENSIONS 7.31 | SP024 | 000000
  • SECURITY EXTENSIONS 7.40 | SP015 | 000003
  • SECURITY EXTENSIONS 7.40 | SP016 | 000003
  • SECURITY EXTENSIONS 7.40 | SP017 | 000002
  • SECURITY EXTENSIONS 7.40 | SP018 | 000000
  • SECURITY EXTENSIONS 7.40 | SP019 | 000000
  • SECURITY EXTENSIONS 7.50 | SP009 | 000003
  • SECURITY EXTENSIONS 7.50 | SP010 | 000003
  • SECURITY EXTENSIONS 7.50 | SP011 | 000002
  • SECURITY EXTENSIONS 7.50 | SP012 | 000001

Affected component

    BC-JAS-SEC-LGN
    Logon, SSO

CVSS

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

PoC

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

URL

https://launchpad.support.sap.com/#/notes/2642680

TAGS

#&65279-XXE
#XML-input-parsing
#&160-SAP-NetWeaver-AS-Java
#&160-SAML-2.0

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