SARA / Free Tools / CVE / CVE-2023-36820

CVE-2023-36820 — Micronaut Security is a security solution for applications

Micronaut Security is a security solution for applications. Prior to versions 3.1.2, 3.2.4, 3.3.2, 3.4.3, 3.5.3, 3.6.6, 3.7.4, 3.8.4, 3.9.6, 3.10.2, and 3.11.1, IdTokenClaimsValidator skips `aud` claim validation if token is issued by same identity issuer/provider. Any OIDC setup

CVSS
4.8 MEDIUM
EPSS
0.49% (top 34.70%)
CWE
CWE-284
Published
2023-10-09T13:30:26.387Z
Last modified
2024-09-19T14:39:04.617Z
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

01What is this vulnerability?

Micronaut Security is a security solution for applications. Prior to versions 3.1.2, 3.2.4, 3.3.2, 3.4.3, 3.5.3, 3.6.6, 3.7.4, 3.8.4, 3.9.6, 3.10.2, and 3.11.1, IdTokenClaimsValidator skips `aud` claim validation if token is issued by same identity issuer/provider. Any OIDC setup using Micronaut where multiple OIDC applications exists for the same issuer but token auth are not meant to be shared…

02Affected products

VendorProductVersions
micronaut-projectsmicronautsecurity — >= 3.11.0, < 3.11.1, >= 3.10.0, < 3.10.2, >= 3.9.0, < 3.9.6, >= 3.8.0, < 3.8.4, >= 3.7.0, < 3.7.4, >= 3.6.0, < 3.6.6, >= 3.5.0, < 3.5.3, >= 3.4.0, < 3.4.3, >= 3.3.0, < 3.3.2, >= 3.2.0, < 3.2.4, >= 3.1.0, < 3.1.2

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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