9.1 - CVE-2020-15084

Executive Summary

Informations
Name	CVE-2020-15084	First vendor Publication	2020-06-30
Vendor	Cve	Last vendor Modification	2022-10-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Overall CVSS Score	9.1
Base Score	9.1	Environmental Score	9.1
impact SubScore	5.2	Temporal Score	9.1
Exploitabality Sub Score	3.9

Attack Vector	Network	Attack Complexity	Low
Privileges Required	None	User Interaction	None
Scope	Unchanged	Confidentiality Impact	High
Integrity Impact	High	Availability Impact	None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:N/I:P/A:N)
Cvss Base Score	4.3	Attack Range	Network
Cvss Impact Score	2.9	Attack Complexity	Medium
Cvss Expoit Score	8.6	Authentication	None Required
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Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15084

Sources (Detail)

Source	Url
CONFIRM	https://github.com/auth0/express-jwt/security/advisories/GHSA-6g6m-m6h5-w9gf
MISC	https://github.com/auth0/express-jwt/commit/7ecab5f8f0cab5297c2b863596566eb0c...