XXE in HL7 fhir-ig-publisher

Published: 2024-10-02

Risk	High
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2024-45294
CWE-ID	CWE-611
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	fhir-ig-publisher Universal components / Libraries / Libraries used by multiple products
Vendor	Health Level Seven International

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) XML External Entity injection

EUVDB-ID: #VU97959

Risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-45294

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied XML input. A remote attacker can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or initiate requests to external systems.

Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

fhir-ig-publisher: 1.1.0 - 1.6.21

CPE2.3

External links

http://github.com/HL7/fhir-ig-publisher/security/advisories/GHSA-59rq-22fm-x8q5
http://github.com/HL7/fhir-ig-publisher/releases/tag/1.6.22

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.