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VMSA-2023-0016:VMware Tanzu Application Service for VMs and Isolation Segment updates address information disclosure vulnerability

Product/Component

VMware Tanzu Platform

0 more products

Notification Id

23662

Last Updated

23 July 2023

Initial Publication Date

23 July 2023

Status

CLOSED

Severity

MEDIUM

CVSS Base Score

6.5

WorkAround

Affected CVE

CVE-2023-20891

Advisory ID: VMSA-2023-0016

CVSSv3 Range: 6.5

Issue Date:2023-07-25

Updated On: 2023-07-25 (Initial Advisory)

CVE(s): CVE-2023-20891

Synopsis: VMware Tanzu Application Service for VMs and Isolation Segment updates address information disclosure vulnerability (CVE-2023-20891)

1. Impacted Products

VMware Tanzu Application Service for VMs
Isolation Segment

2. Introduction

VMware Tanzu Application Service for VMs and Isolation Segment contain an information disclosure which was privately reported to VMware. Patches are available to remediate this vulnerability in affected VMware products.

3. VMware Tanzu Application Service for VMs and Isolation Segment information disclosure vulnerability (CVE-2023-20891)

Description

The VMware Tanzu Application Service for VMs and Isolation Segment contain an information disclosure vulnerability due to the logging of credentials in hex encoding in platform system audit logs .VMware has evaluated the severity of this issue to be in the Moderate severity range with a maximum CVSSv3 base score of 6.5.

Known Attack Vectors

A malicious non-admin user who has access to the platform system audit logs can access hex encoded CF API admin credentials and can push new malicious versions of an application. In a default deployment non-admin users do not have access to the platform system audit logs.

Resolution

To remediate CVE-2023-20891, apply the patches listed in the 'Fixed Version' column of the 'Resolution Matrix' found below.

Workarounds

None.

Additional Documentation

None.

Notes

All the impacted users of Vmware Tanzu Application Service for VMs and Isolation Segment are recommended to do CF API admin credential rotation as per our KB here.

Response Matrix

Product	Version	Running On	CVE Identifier	CVSSv3	Severity	Fixed Version	Workarounds	Additional Documentation
VMware Tanzu Application Service for VMs	4.0.x	Any	CVE-2023-20891	6.5	moderate	4.0.5	None	None
VMware Tanzu Application Service for VMs	3.0.x	Any	CVE-2023-20891	6.5	moderate	3.0.14	None	None
VMware Tanzu Application Service for VMs	2.13.x	Any	CVE-2023-20891	6.5	moderate	2.13.24	None	None
VMware Tanzu Application Service for VMs	2.11.x	Any	CVE-2023-20891	6.5	moderate	2.11.42	None	None
Isolation Segment	4.0.x	Any	CVE-2023-20891	6.5	moderate	4.0.4	None	None
Isolation Segment	3.0.x	Any	CVE-2023-20891	6.5	moderate	3.0.13	None	None
Isolation Segment	2.13.x	Any	CVE-2023-20891	6.5	moderate	2.13.20	None	None
Isolation Segment	2.11.x	Any	CVE-2023-20891	6.5	moderate	2.11.35	None	None