CVE-2023-3892 Unsafe XML parsing of 3rd party DICOM private tags may lead to XXE

Medium 5.6 Published Updated

Attackers can exploit unsafe XML parsing in DICOM RTst loading to trigger XXE attacks, potentially reading data or causing denial of service.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2023-3892?

CVE-2023-3892 is a medium-severity vulnerability in MIM Assistant, published on 19 Sep 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Improper Restriction of XML External Entity Reference vulnerability in MIM Assistant and Client DICOM RTst Loading modules allows XML Entity Linking / XML External Entities Blowup.

In order to take advantage of this vulnerability, an attacker must craft a malicious XML document, embed this document into specific 3rd party private RTst metadata tags, transfer the now compromised DICOM object to MIM, and force MIM to archive and load the data.

Users on either version are strongly encouraged to update to an unaffected version (7.2.11+, 7.3.4+).

This issue was found and analyzed by MIM Software's internal security team.  We are unaware of any proof of concept or actual exploit available in the wild.

For more information, visit https://www.mimsoftware.com/cve-2023-3892 https://www.mimsoftware.com/cve-2023-3892

This issue affects MIM Assistant: 7.2.10, 7.3.3; MIM Client: 7.2.10, 7.3.3.

Weakness: CWE-611

Which versions are affected by CVE-2023-3892?

It affects 2 products.

Products include Mimsoftware Assistant, Mimsoftware Client.

How do I fix CVE-2023-3892?

No fix has been published for CVE-2023-3892 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-3892 being exploited?

There is no known exploitation of CVE-2023-3892 in the wild and no public exploit code.

Sources

Also known as GHSA-r5mr-q22m-29hf.

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