CVE-2020-15957
Last modified
CVE-2020-15957 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 1.55% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Dp3t-Backend-Software Development Kit Project | Dp3t-Backend-Software Development Kit | < 1.1.1 |
References
- https://github.com/DP-3T/dp3t-sdk-backend/compare/v1.0.4...v1.1.0Release Notes, Third Party Advisory
- https://github.com/DP-3T/dp3t-sdk-backend/security/advisories/GHSA-5m5q-3qw2-3xf3Patch, Third 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 Notes, Third Party Advisory
- https://github.com/DP-3T/dp3t-sdk-backend/security/advisories/GHSA-5m5q-3qw2-3xf3Patch, Third Party Advisory
- https://github.com/dp-3T/dp3t-sdk-backendThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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