CVE-2022-39366

Description

# Missing JWT signature check (`GHSL-2022-078`) The [`StatelessTokenService`](https://github.com/datahub-project/datahub/blob/aa146db611e3a4ca3aa17bb740783f789d4444d3/metadata-service/auth-impl/src/main/java/com/datahub/authentication/token/StatelessTokenService.java#L30) of the DataHub metadata service (GMS) does not verify the signature of JWT tokens. This allows an attacker to connect to DataHub instances as any user if Metadata Service authentication is enabled. This vulnerability occurs because the `StatelessTokenService` of the Metadata service uses the [`parse`](https://github.com/datahub-project/datahub/blob/aa146db611e3a4ca3aa17bb740783f789d4444d3/metadata-service/auth-impl/src/main/java/com/datahub/authentication/token/StatelessTokenService.java#L134) method of `io.jsonwebtoken.JwtParser`, which does not perform a verification of the cryptographic token signature. This means that JWTs are accepted regardless of the used algorithm. #### Impact This issue may lead to an authentication bypass. #### Resources * [CodeQL: Missing JWT signature check](https://codeql.github.com/codeql-query-help/java/java-missing-jwt-signature-check/)

How to fix CVE-2022-39366

To remediate CVE-2022-39366, upgrade the affected package to a fixed version below.

• —upgrade to 0.8.45 or later

Is CVE-2022-39366 being exploited?

Low — EPSS is 1.0%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• from 0, < 0.8.45

CVSS scores

References (7)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2022-39366
• PATCHgithub.com/datahub-project/datahub
• WEBcodeql.github.com/codeql-query-help/java/java-missing-jwt-signature-check
• WEBgithub.com/datahub-project/datahub/blob/aa146db611e3a4ca3aa17bb740783f789d4444d3/metadata-service/auth-impl/src/main/java/com/datahub/authentication/token/StatelessTokenService.java#L134