CVEvulnerability
CVE-2020-15957
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-07-30
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-347
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.
Affected configurations
• dp3t-backend-software development kit project dp3t-backend-software development kit (< 1.1.1)
Related
Weakness · CWE (1)
- CWE-347 Improper Verification of Cryptographic Signature weakness
References
- https://github.com/DP-3T/dp3t-sdk-backend/compare/v1.0.4...v1.1.0 Release Notes, Third Party Advisory
- https://github.com/DP-3T/dp3t-sdk-backend/security/advisories/GHSA-5m5q-3qw2-3xf3 Patch, Third Party Advisory
- https://github.com/dp-3T/dp3t-sdk-backend Third Party Advisory
- https://github.com/DP-3T/dp3t-sdk-backend/compare/v1.0.4...v1.1.0 Release Notes, Third Party Advisory
- https://github.com/DP-3T/dp3t-sdk-backend/security/advisories/GHSA-5m5q-3qw2-3xf3 Patch, Third Party Advisory
- https://github.com/dp-3T/dp3t-sdk-backend Third Party Advisory