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Vahagn Vardanian

Vahagn Vardanian

Co-founder and CTO of RedRays

CVE-2020-6202 Missing XML Validation in SAP NetWeaver Application Server Java (User Management Engine), SAP security note 2847787

Description

The User Management Engine (UME) does not sufficiently validate the LDAP datasource configuration XML document accepted from an untrusted source.

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

  • Denial-of-Service conditions in successful exploits

Available fix and Supported packages

  • SERVERCORE | 7.10 | 7.10
  • SERVERCORE | 7.11 | 7.11
  • SERVERCORE | 7.20 | 7.20
  • SERVERCORE | 7.30 | 7.30
  • SERVERCORE | 7.31 | 7.31
  • SERVERCORE | 7.40 | 7.40
  • SERVERCORE | 7.50 | 7.50
  • J2EE ENGINE SERVERCORE 7.10 | SP024 | 000003
  • J2EE ENGINE SERVERCORE 7.10 | SP025 | 000000
  • J2EE ENGINE SERVERCORE 7.11 | SP019 | 000003
  • J2EE ENGINE SERVERCORE 7.11 | SP020 | 000000
  • J2EE ENGINE SERVERCORE 7.20 | SP009 | 000139
  • J2EE ENGINE SERVERCORE 7.30 | SP019 | 000017
  • J2EE ENGINE SERVERCORE 7.30 | SP020 | 000001
  • J2EE ENGINE SERVERCORE 7.30 | SP021 | 000000
  • J2EE ENGINE SERVERCORE 7.31 | SP025 | 000007
  • J2EE ENGINE SERVERCORE 7.31 | SP026 | 000001
  • J2EE ENGINE SERVERCORE 7.31 | SP027 | 000000
  • J2EE ENGINE SERVERCORE 7.40 | SP020 | 000008
  • J2EE ENGINE SERVERCORE 7.40 | SP021 | 000001
  • J2EE ENGINE SERVERCORE 7.40 | SP022 | 000000
  • J2EE ENGINE SERVERCORE 7.50 | SP016 | 000007
  • J2EE ENGINE SERVERCORE 7.50 | SP017 | 000001
  • J2EE ENGINE SERVERCORE 7.50 | SP018 | 000000

Affected component

    BC-JAS-SEC-UME
    User Management Engine

CVSS

Score: 5.5
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L

PoC

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

URL

https://launchpad.support.sap.com/#/notes/2847787

TAGS

#&65279-XXE
#XML-Input-parsing
#&160-CVE-2020-6202

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