Vulnerability CVE-2020-26834


Published: 2020-12-09

Description:
SAP HANA Database, version - 2.0, does not correctly validate the username 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 username for whom the SAML bearer token was issued.

Type:

CWE-287

(Improper Authentication)

CVSS2 => (AV:N/AC:L/Au:S/C:P/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.5/10
4.9/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
None
Affected software
SAP -> Hana database 

 References:
https://launchpad.support.sap.com/#/notes/2978768
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=564757079

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