CVE-2020-26834

CVSS V2 Medium 5.5 CVSS V3 Medium 5.4
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.
Overview
  • CVE ID
  • CVE-2020-26834
  • Assigner
  • cna@sap.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-12-09T17:15:31
  • Last Modified Date
  • 2020-12-10T21:38:40
Weakness Enumerations
CWE URL
CWE-287 http://cwe.mitre.org/data/definitions/287.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:sap:hana_database:2.00:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:S/C:P/I:P/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • NONE
  • Base Score
  • 5.5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8
  • Impact Score
  • 4.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • NONE
  • Base Score
  • 5.4
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 2.5
References
Reference URL Reference Tags
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=564757079 Vendor Advisory
https://launchpad.support.sap.com/#/notes/2978768 Permissions Required
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-26834
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26834
History
Created Old Value New Value Data Type Notes
2022-05-10 07:30:41 Added to TrackCVE
2022-12-05 17:50:55 2020-12-09T17:15Z 2020-12-09T17:15:31 CVE Published Date updated
2022-12-05 17:50:55 2020-12-10T21:38:40 CVE Modified Date updated
2022-12-05 17:50:55 Analyzed Vulnerability Status updated