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AUSCERT External Security Bulletin Redistribution
ESB-2023.1090
VMware Carbon Black App Control updates address an injection
vulnerability (CVE-2023-20858)
22 February 2023
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AusCERT Security Bulletin Summary
---------------------------------
Product: VMware Carbon Black App Control
Publisher: VMware
Operating System: Windows
VMware ESX Server
Resolution: Patch/Upgrade
CVE Names: CVE-2023-20858
Original Bulletin:
https://www.vmware.com/security/advisories/VMSA-2023-0004.html
Comment: CVSS (Max): 9.1 CVE-2023-20858 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H)
CVSS Source: VMware
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
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Advisory ID: VMSA-2023-0004
CVSSv3 Range: 9.1
Issue Date: 2023-02-21
Updated On: 2023-02-21 (Initial Advisory)
CVE(s): CVE-2023-20858
Synopsis: VMware Carbon Black App Control updates address an injection
vulnerability (CVE-2023-20858)
1. Impacted Products
o VMware Carbon Black App Control (App Control)
2. Introduction
An injection vulnerability affecting VMware Carbon Black App Control was
privately reported to VMware. Updates are available to address this
vulnerability in affected VMware products.
3. Injection Vulnerability (CVE-2023-20858)
Description
VMware Carbon Black App Control contains an injection vulnerability. VMware has
evaluated the severity of this issue to be in the Critical severity range with
a maximum CVSSv3 base score of 9.1.
Known Attack Vectors
A malicious actor with privileged access to the App Control administration
console may be able to use specially crafted input allowing access to the
underlying server operating system.
Resolution
To remediate CVE-2023-20858 update to the versions listed in the 'Fixed
Version' column of the 'Response Matrix' found below.
Workarounds
None.
Additional Documentation
None.
Notes
None.
Acknowledgements
VMware would like to thank Jari Jaaskela (@JJaaskela) for reporting this
vulnerability to us.
Response Matrix
Product Version Running CVE Identifier CVSSv3 Severity Fixed Workarounds Additional
On Version Documentation
App 8.9.x Windows CVE-2023-20858 9.1 critical 8.9.4 None None
Control
App 8.8.x Windows CVE-2023-20858 9.1 critical 8.8.6 None None
Control
App 8.7.x Windows CVE-2023-20858 9.1 critical 8.7.8 None None
Control
4. References
Downloads and Documentation:
VMware Carbon Black App Control 8.9.4
https://docs.vmware.com/en/VMware-Carbon-Black-App-Control/services/
cb-ac-announcements/GUID-7464A525-BCF4-4329-9228-B040C9C16D22.html
VMware Carbon Black App Control 8.7.8, 8.8.6
https://docs.vmware.com/en/VMware-Carbon-Black-App-Control/services/
cb-ac-announcements/GUID-35DA49E4-41F3-485B-88E5-AE69B354F2FB.html
Mitre CVE Dictionary Links:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-20858
FIRST CVSSv3 Calculator:
https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/
I:H/A:H
5. Change Log
2023-02-21 VMSA-2023-0004
Initial security advisory.
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