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CVE-2020-15957

7.5 · HIGH

An issue was discovered in DP3T-Backend-SDK before 1.1.1 for Decentralised Privacy-Preserving Proximity Tracing (DP3T).

Published Jul 30, 2020CWE-347EPSS 1.36%

Overview

CVE-2020-15957 is a high-severity vulnerability. It was published on July 30, 2020 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/DP-3T/dp3t-sdk-backend/compare/v1.0.4...v1.1.0GitHubgithub.com/DP-3T/dp3t-sdk-backend/security/advisories/GHSA-5m5q-3qw2-3xf3GitHubgithub.com/dp-3T/dp3t-sdk-backendGitHubgithub.com/DP-3T/dp3t-sdk-backend/compare/v1.0.4...v1.1.0GitHubgithub.com/DP-3T/dp3t-sdk-backend/security/advisories/GHSA-5m5q-3qw2-3xf3GitHubgithub.com/dp-3T/dp3t-sdk-backend

How CyberStrike helps

Frequently asked questions

What is CVE-2020-15957?

CVE-2020-15957 is a high-severity vulnerability. It was published on July 30, 2020 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2020-15957?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2020-15957?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-15957?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-15957 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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