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Source: https://www.vmware.com/security/advisories/VMSA-2023-0005.html
Tip Upgrade your vRO/vRA to version 8.11.1 as soon as possible to overcome this vulnerability.
Impacted Products
- VMware vRealize Orchestrator
- VMware vRealize Automation
- VMware Cloud Foundation (Cloud Foundation)
Introduction
An XML External Entity (XXE) vulnerability affecting VMware vRealize Orchestrator was privately reported to VMware. Updates are available to address this vulnerability in affected VMware products.
3. XML External Entity (XXE) Vulnerability (CVE-2023-20855)
Description
VMware vRealize Orchestrator contains an XML External Entity (XXE) vulnerability. VMware has evaluated the severity of this issue to be in the Important severity range with a maximum CVSSv3 base score of 8.8.
Known Attack Vectors
A malicious actor, with non-administrative access to vRealize Orchestrator, may be able to use specially crafted input to bypass XML parsing restrictions leading to access to sensitive information or possible escalation of privileges.
Resolution
To remediate CVE-2023-20855 apply the patches listed in the ‘Fixed Version’ column of the ‘Response Matrix’ below.
Workarounds
None.
Additional Documentation
None.
Notes
VMware vRealize Automation 8.x is affected since it uses embedded vRealize Orchestrator.
Acknowledgements
VMware would like to thank IT.NRW for reporting this issue to us.
Response Matrix
| Product | Version | Running On | CVE Identifier | CVSSv3 | Severity | Fixed Version | Workarounds | Additional Documentation |
| VMware vRealize Orchestrator | 8.x | Virtual Appliance | CVE-2023-20855 | 8.8 | Important | 8.11.1 | None | None |
| VMware vRealize Automation | 8.x | Any | CVE-2023-20855 | 8.8 | Important | 8.11.1 | None | None |
Impacted Product Suites that Deploy Response Matrix Components:
| Product | Version | Running On | CVE Identifier | CVSSv3 | Severity | Fixed Version | Workarounds | Additional Documentation |
| VMware Cloud Foundation (vRealize Automation) | 4.x | Any | CVE-2023-20855 | 8.8 | Important | KB90926 | None | None |
References
GitHub Advisory DB: https://github.com/advisories/GHSA-3hq4-5qpg-7776
NIST: https://nvd.nist.gov/vuln/detail/CVE-2023-20855
Hacker News: https://thehackernews.com/2023/02/vmware-patches-critical-vulnerability.html
Securoty Online: https://securityonline.info/vmware-patches-critical-cve-2023-20858-vulnerability-in-carbon-black-app-control/
Cloud Foundation (vRealize Automation) KB90926: https://kb.vmware.com/s/article/90926
Mitre CVE Dictionary Links:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-20855
FIRST CVSSv3 Calculator:
https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Change Log
2023-02-21 VMSA-2023-0005
Initial security advisory.
Contact
E-mail: security@vmware.com
PGP key at:
https://kb.vmware.com/kb/1055
VMware Security Advisories
https://www.vmware.com/security/advisories
VMware Security Response Policy
https://www.vmware.com/support/policies/security_response.html
VMware Lifecycle Support Phases
https://www.vmware.com/support/policies/lifecycle.html
VMware Security & Compliance Blog
https://blogs.vmware.com/security
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