Vulnerability Description
An issue was discovered in DP3T-Backend-SDK before 1.1.1 for Decentralised Privacy-Preserving Proximity Tracing (DP3T). When it is configured to check JWT before uploading/publishing keys, it is possible to skip the signature check by providing a JWT token with alg=none.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Dp3T-Backend-Software Development Kit Project | Dp3T-Backend-Software Development Kit | < 1.1.1 |
Related Weaknesses (CWE)
References
- https://github.com/DP-3T/dp3t-sdk-backend/compare/v1.0.4...v1.1.0Release NotesThird Party Advisory
- https://github.com/DP-3T/dp3t-sdk-backend/security/advisories/GHSA-5m5q-3qw2-3xfPatchThird Party Advisory
- https://github.com/dp-3T/dp3t-sdk-backendThird Party Advisory
- https://github.com/DP-3T/dp3t-sdk-backend/compare/v1.0.4...v1.1.0Release NotesThird Party Advisory
- https://github.com/DP-3T/dp3t-sdk-backend/security/advisories/GHSA-5m5q-3qw2-3xfPatchThird Party Advisory
- https://github.com/dp-3T/dp3t-sdk-backendThird Party Advisory
FAQ
What is CVE-2020-15957?
CVE-2020-15957 is a vulnerability with a CVSS score of 7.5 (HIGH). An issue was discovered in DP3T-Backend-SDK before 1.1.1 for Decentralised Privacy-Preserving Proximity Tracing (DP3T). When it is configured to check JWT before uploading/publishing keys, it is possi...
How severe is CVE-2020-15957?
CVE-2020-15957 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-15957?
Check the references section above for vendor advisories and patch information. Affected products include: Dp3T-Backend-Software Development Kit Project Dp3T-Backend-Software Development Kit.