Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2020-15222

8.1 · HIGH

In ORY Fosite (the security first OAuth2 & OpenID Connect framework for Go) before version 0.31.0, when using "private_key_jwt" authentication the uniqueness of the `jti` value is not checked.

Published Sep 24, 2020CWE-287EPSS 0.87%

Overview

CVE-2020-15222 is a high-severity vulnerability. It was published on September 24, 2020 and has a CVSS 3.1 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In ORY Fosite (the security first OAuth2 & OpenID Connect framework for Go) before version 0.31.0, when using "private_key_jwt" authentication the uniqueness of the `jti` value is not checked. When using client authentication method "private_key_jwt", OpenId specification says the following about assertion `jti`: "A unique identifier for the token, which can be used to prevent reuse of the token. These tokens MUST only be used once, unless conditions for reuse were negotiated between the parties". Hydra does not seem to check the uniqueness of this `jti` value. This problem is fixed in version 0.31.0.

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/ory/fosite/commit/0c9e0f6d654913ad57c507dd9a36631e1858a3e9GitHubgithub.com/ory/fosite/security/advisories/GHSA-v3q9-2p3m-7g43Refopenid.net/specs/openid-connect-core-1_0.html#ClientAuthenticationGitHubgithub.com/ory/fosite/commit/0c9e0f6d654913ad57c507dd9a36631e1858a3e9GitHubgithub.com/ory/fosite/security/advisories/GHSA-v3q9-2p3m-7g43Refopenid.net/specs/openid-connect-core-1_0.html#ClientAuthentication

How CyberStrike helps

Frequently asked questions

What is CVE-2020-15222?

CVE-2020-15222 is a high-severity vulnerability. It was published on September 24, 2020 and has a CVSS 3.1 base score of 8.1 (HIGH).

How severe is CVE-2020-15222?

This vulnerability has a CVSS 3.1 base score of 8.1, 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-2020-15222?

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-2020-15222?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-15222 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.

Related HIGH CVEs from 2020

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999