Description
An NTLM Hash Disclosure was discovered in ArchiMate Archi before 5.1.0. When parsing the XMLNS value of an ArchiMate project file, if the namespace does not match the expected ArchiMate URL, the parser will access the provided resource. If the provided resource is a UNC path pointing to a share server that does not accept a guest account, the host will try to authenticate on the share by using the current user's session. NOTE: this issue occurs because Archi uses an unsafe configuration of the Eclipse Modeling Framework.
References (4)
Core 4
Core References
Exploit, Issue Tracking, Vendor Advisory
https://github.com/archimatetool/archi/issues/946
Exploit, Issue Tracking, Third Party Advisory
https://github.com/eclipse-emf/org.eclipse.emf/issues/8
Scores
CVSS v3
6.5
EPSS
0.0070
EPSS Percentile
48.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
Status
published
Products (1)
opengroup/archi
< 5.1.0
Published
Aug 10, 2023
Tracked Since
Feb 18, 2026