CVE-2023-41034 | BDVDB-2026-210835 Detail
eclipse-leshanleshan
Description#
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact low, availability impact none. Attack vector: network.
Weaknesses#
- CWE-611 Improper Restriction of XML External Entity Reference
References#
- https://github.com/eclipse-leshan/leshan/security/advisories/GHSA-wc9j-gc65-3cm7
- https://github.com/eclipse-leshan/leshan/commit/29577d2879ba8e7674c3b216a7f01193fc7ae013
- https://github.com/eclipse-leshan/leshan/commit/4d3e63ac271a817f81fba3e3229c519af7a3049c
- https://github.com/eclipse-leshan/leshan/wiki/Adding-new-objects#the-lwm2m-model
- https://owasp.org/www-community/vulnerabilities/XML_External_Entity_(XXE)_Processing
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.