CVE-2021-21474 Information

Description

SAP HANA Database versions - 1.0 2.0 accepts SAML tokens with MD5 digest an attacker who manages to obtain an MD5-digest signed SAML Assertion issued for an SAP HANA instance might be able to tamper with it and alter it in a way that the digest continues to be the same and without invalidating the digital signature this allows them to impersonate as user in HANA database and be able to read the contents in the database.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Reference

https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=568460543 https://launchpad.support.sap.com/#/notes/2992154

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

NONE

Base Severity

6.5