Paper/Archive/CVE-2023-41034

CVE-2023-41034

eclipse-leshan leshan — DDFFileParser in eclipse leshan is vulnerable to XXE Attacks

CVSS 9.8 (NVD)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 52.8.528 × 2010.6 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

Eclipse Leshan is a device management server and client Java implementation. In affected versions DDFFileParser` and `DefaultDDFFileValidator` (and so `ObjectLoader`) are vulnerable to `XXE Attacks`. A DDF file is a LWM2M format used to store LWM2M object description. Leshan users are impacted only if they parse untrusted DDF files (e.g. if they let external users provide their own model), in that case they MUST upgrade to fixed version. If you parse only trusted DDF file and validate only with trusted xml schema, upgrading is not mandatory. This issue has been fixed in versions 1.5.0 and 2.0.0-M13. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected

ProductAffectedFixed inSource

leshan< 1.5.0–CNA

leshan>= 2.0.0-M1, < 2.0.0-M13–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

GitHub_M (CNA)6.5CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

refgithub.com/eclipse-leshan/leshan/security/advisories/GHSA-wc9j-gc65-3cm7 refgithub.com/eclipse-leshan/leshan/commit/29577d2879ba8e7674c3b216a7f01193fc7ae013 refgithub.com/eclipse-leshan/leshan/commit/4d3e63ac271a817f81fba3e3229c519af7a3049c refgithub.com/eclipse-leshan/leshan/wiki/Adding-new-objects#the-lwm2m-model refowasp.org/www-community/vulnerabilities/XML_External_Entity_(XXE)_Processing