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Arpine Maghakyan

Arpine Maghakyan

Security Researcher of RedRays.

CVE-2020-26834 Improper authentication in SAP HANA database, SAP security note 2978768

Description

The SAP HANA database does not correctly validate the user name when performing SAML bearer token-based user authentication. It is possible to manipulate a valid existing SAML bearer token to authenticate as a user whose name is identical to the truncated user name for whom the SAML bearer token was issued.

Available fix and Supported packages

  • HDB | 1.00 | 1.00
  • HDB | 2.00 | 2.00
  • SAP HANA DATABASE 1.00 | SP122 | 000033
  • SAP HANA DATABASE 2.0 | SP048 | 000003
  • SAP HANA DATABASE 2.0 | SP053 | 000000

Affected component

    HAN-DB-SEC
    SAP HANA Security & User Management

CVSS

Score: 4.2
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

Exploit

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

URL

https://launchpad.support.sap.com/#/notes/2978768

TAGS

#Broken-Authentication
#&160-CVE-2020-26834

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