VulnerabilityModified
CVE-2020-15957
An issue was discovered in DP3T-Backend-SDK before 1.1.1 for Decentralised Privacy-Preserving Proximity Tracing (DP3T).
HIGH 7.5EPSS 1.36%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 1.36% probability · 70th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-347
- Affected
- dp3t-backend-software development kit project/dp3t-backend-software development kit
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.