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SapCVE-2020-26834

HistoryDec 09, 2020 - 5:15 p.m.

CVE-2020-26834

2020-12-0917:15:31

CWE-287

sap

web.nvd.nist.gov

sap

hana

database

version 2.0

saml

bearer

token

user authentication

vulnerability

cve-2020-26834

nvd

CVSS2

5.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:S/C:P/I:P/A:N

CVSS3

5.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

AI Score

5.5

Confidence

High

EPSS

0.001

Percentile

22.7%

JSON

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.

Affected configurations

Nvd

Node

saphana_databaseMatch2.00

VendorProductVersionCPE
saphana_database2.00cpe:2.3:a:sap:hana_database:2.00:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
sap	hana_database	2.00	cpe:2.3:a:sap:hana_database:2.00:::::::*

CNA Affected

[
  {
    "product": "SAP HANA Database",
    "vendor": "SAP SE",
    "versions": [
      {
        "status": "affected",
        "version": "< 2.0"
      }
    ]
  }
]

References

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

wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=564757079

Social References

CVSS2

5.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:L/Au:S/C:P/I:P/A:N

CVSS3

5.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

AI Score

5.5

Confidence

High

EPSS

0.001

Percentile

22.7%

JSON

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