What is CVE-2023-20855?

CVE-2023-20855 is a vulnerability in VMware vRealize Orchestrator that allows a malicious actor to bypass XML parsing restrictions and gain unauthorized access to sensitive information or potentially elevate privileges.

What is the severity of CVE-2023-20855?

The severity of CVE-2023-20855 is rated as high, with a CVSS score of 8.8.

Which software versions are affected by CVE-2023-20855?

VMware vRealize Automation and VMware vRealize Orchestrator versions between 8.0 and 8.11.1 are affected by CVE-2023-20855.

How can a malicious actor exploit CVE-2023-20855?

A malicious actor with non-administrative access to vRealize Orchestrator can exploit CVE-2023-20855 by using specially crafted input to bypass XML parsing restrictions.

Is there a patch or fix available for CVE-2023-20855?

Yes, VMware has provided patches to address the CVE-2023-20855 vulnerability. More information can be found in the official VMware security advisory.

Vulnerability/
CVE-2023-20855

high

8.8

CWE

611

21/2/2023

2/8/2024

CVE-2023-20855: XEE

First published: Tue Feb 21 2023(Updated: )

VMware vRealize Orchestrator contains an XML External Entity (XXE) vulnerability. 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.

Credit: security@vmware.com

Affected Software	Affected Version	How to fix
VMware vRealize Automation	>=8.0<8.11.1
VMware vRealize Orchestrator	>=8.0<8.11.1

Remedy

https://www.vmware.com/security/advisories/VMSA-2023-0005.html

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Reference Links

https://www.vmware.com/security/advisories/VMSA-2023-0005.html

Frequently Asked Questions

What is CVE-2023-20855?
CVE-2023-20855 is a vulnerability in VMware vRealize Orchestrator that allows a malicious actor to bypass XML parsing restrictions and gain unauthorized access to sensitive information or potentially elevate privileges.
What is the severity of CVE-2023-20855?
The severity of CVE-2023-20855 is rated as high, with a CVSS score of 8.8.
Which software versions are affected by CVE-2023-20855?
VMware vRealize Automation and VMware vRealize Orchestrator versions between 8.0 and 8.11.1 are affected by CVE-2023-20855.
How can a malicious actor exploit CVE-2023-20855?
A malicious actor with non-administrative access to vRealize Orchestrator can exploit CVE-2023-20855 by using specially crafted input to bypass XML parsing restrictions.
Is there a patch or fix available for CVE-2023-20855?
Yes, VMware has provided patches to address the CVE-2023-20855 vulnerability. More information can be found in the official VMware security advisory.

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vendor/vmware
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version/vmware vrealize automation/8.0
canonical/vmware vrealize orchestrator
version/vmware vrealize orchestrator/8.0

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