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CVE-2020-5426

Scheduler for TAS can transmit privileged UAA token in plaintext

CRITICAL
9.8
CVSS Score
Published: November 11, 2020 at 05:05 PM UTC
Updated: June 17, 2026 at 03:21 AM UTC
2 products affected across 2 vendorsPivotal SchedulerPivotal Scheduler

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Severity
CRITICAL9.8
Exploit prediction
EPSS 0.7%

Description

Scheduler for TAS prior to version 1.4.0 was permitting plaintext transmission of UAA client token by sending it over a non-TLS connection. This also depended on the configuration of the MySQL server which is used to cache a UAA client token used by the service. If intercepted the token can give an attacker admin level access in the cloud controller.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Pivotal Scheduler· VMware
95%
v < 1.4.0
Affected range stops below 1.4.0, so it looks safe — our inference, not a vendor statement
Pivotal Scheduler· VMware Tanzu
60%
v < 1.4.0
Affected range stops below 1.4.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://tanzu.vmware.com/security/cve-2020-5426

CVSS

9.8CRITICAL[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-319

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