Home/CVE/SAP HANA Database, version - 2.0, does not correctly validate the username when performing SAML bearer token-based user
CVE

CVE-2020-26834

SAP HANA Database, version - 2.0, does not correctly validate the username when performing SAML bearer token-based user

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.

MEDIUM · CVSS 5.4 EPSS 0.0016
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-287Improper Authentication
▤

Affected Products & Versions

1
sap hana databaseall versions
▣

Scoring & Timeline

5.4
MEDIUM · CVSS v3.1 · cna@sap.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 Dec 2020 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://launchpad.support.sap.com/#/notes/2978768Permissions Required
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=564757079Vendor Advisory
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