Vulnerability · Published Oct 31, 2020 · Assigned by pivotal
CVE-2020-5425User Impersonation possible in Tanzu SSO
High 7.5
In plain English
A high-severity improper authentication in Single Sign-On for VMware Tanzu from VMware Tanzu. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| VMware Tanzu | Single Sign-On for VMware Tanzu | 1.11 – before 1.11.31.12 – before 1.12.41.13 – before 1.13.1 |
Weakness: CWE-287 · Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:H
References
- https://tanzu.vmware.com/security/cve-2020-5425 x_refsource_CONFIRM