CVE-2024-39847 PUBLISHED

Arbitrary File Read and Server Side Request Forgery via XML External Entities in 4D Server SOAP

Assigner: SCHUTZWERK
Reserved: 29.06.2024 Published: 30.04.2026 Updated: 30.04.2026

Unauthenticated attackers can exploit a weakness in the XML parser functionality of the SOAP endpoints in 4D server. This allows them to obtain read access to files on the application server and adjacent network shares, and perform HTTP GET requests to arbitrary services.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/AU:Y
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	4D
Product	4D Server
Versions	Default: unaffected affected from * to v20 R3 (incl.) unknown from v20 R4 to v20 R6 (incl.) Version v20 R7 is unaffected

Solutions

Update to 4D Server 20 R7 or higher.

Credits

Marcelo Reyes of SCHUTZWERK GmbH finder

References

Problem Types

CWE-611 Improper Restriction of XML External Entity Reference CWE

Impacts

CAPEC-664 Server Side Request Forgery
CAPEC-497 File Discovery