CVE-2020-5425 Detail

Current Description

Single Sign-On for Vmware Tanzu all versions prior to 1.11.3 ,1.12.x versions prior to 1.12.4 and 1.13.x prior to 1.13.1 are vulnerable to user impersonation attack.If two users are logged in to the SSO operator dashboard at the same time, with the same username, from two different identity providers, one can acquire the token of the other and thus operate with their permissions. Note: Foundation may be vulnerable only if: 1) The system zone is set up to use a SAML identity provider 2) There are internal users that have the same username as users in the external SAML provider 3) Those duplicate-named users have the scope to access the SSO operator dashboard 4) The vulnerability doesn't appear with LDAP because of chained authentication.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  7.9 HIGH
Vector:  CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:H

Nist CVSS score does not match with CNA score
CNA:  Pivotal Software, Inc.
Base Score:  7.5 HIGH
Vector:  CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://tanzu.vmware.com/security/cve-2020-5425 Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-287 Improper Authentication cwe source acceptance level NIST   Contributor acceptance level Pivotal Software, Inc.  

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2020-5425
NVD Published Date:
10/31/2020
NVD Last Modified:
11/17/2020
Source:
Pivotal Software, Inc.