CVE-2023-41034
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk43th percentile - higher than 43% of all known CVEs
Summary
Eclipse Leshan, a device management server, is vulnerable to XXE attacks in versions containing `DDFFileParser` and `DefaultDDFFileValidator`. Users are only at risk if they parse untrusted DDF files.
Risk Assessment
The organization is at risk of attacks that could lead to data exposure or unauthorized code execution if untrusted DDF files are processed.
Recommendation
It is recommended to upgrade to versions 1.5.0 or 2.0.0-M13 if untrusted DDF files are being processed. If only trusted files are processed, upgrading is not mandatory.
Original NVD description (English source)
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.