CVE-2020-15084
7.7 · HIGHOverview
CVE-2020-15084 is a high-severity vulnerability affecting auth0 express-jwt. It was published on June 30, 2020 and has a CVSS 3.1 base score of 7.7 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
In express-jwt (NPM package) up and including version 5.3.3, the algorithms entry to be specified in the configuration is not being enforced. When algorithms is not specified in the configuration, with the combination of jwks-rsa, it may lead to authorization bypass. You are affected by this vulnerability if all of the following conditions apply: - You are using express-jwt - You do not have **algorithms** configured in your express-jwt configuration. - You are using libraries such as jwks-rsa as the **secret**. You can fix this by specifying **algorithms** in the express-jwt configuration. See linked GHSA for example. This is also fixed in version 6.0.0.
Remediation
Check the references section for vendor advisories and patches from auth0. Update express-jwt to the latest patched version. 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.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| auth0 | express-jwt | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2020-15084?
CVE-2020-15084 is a high-severity vulnerability affecting auth0 express-jwt. It was published on June 30, 2020 and has a CVSS 3.1 base score of 7.7 (HIGH).
How severe is CVE-2020-15084?
This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2020-15084?
Check the references section for vendor advisories and patches from auth0. Update express-jwt to the latest patched version. 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-2020-15084?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-15084 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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