CVE-2022-23944
Published: 25 January 2022
Summary
CVE-2022-23944 is a critical-severity Missing Authorization (CWE-862) vulnerability in Apache Shenyu. Its CVSS base score is 9.1 (Critical).
Operationally, ranked in the top 0.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
Apache ShenYu versions 2.4.0 and 2.4.1 are affected by a missing authentication vulnerability that permits access to the /plugin API endpoint without any credentials. The flaw is tracked under CWE-862 and CWE-306 and carries a CVSS 3.1 score of 9.1, reflecting network attackability with no required privileges or user interaction.
An unauthenticated remote attacker can directly invoke the unprotected API to read or modify plugin configuration and related data, resulting in high impact to confidentiality and integrity while leaving availability unaffected.
Public advisories issued via the Apache mailing lists and OpenWall lists describe the exposure and point administrators to updated releases that enforce proper authentication on the endpoint.
The CVE maintains an EPSS score near its recorded peak of 0.9024, indicating sustained exploitation interest after public disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-0487
Vulnerability details
User can access /plugin api without authentication. This issue affected Apache ShenYu 2.4.0 and 2.4.1.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Requiring identification and rationale for actions allowed without authentication ensures critical functions are not left unprotected by forcing review of authentication requirements.
Authorizing mobile device connections to organizational systems ensures authentication is performed for this critical access function.
Always invoking the reference monitor prevents missing authorization checks for protected resources.
Auditing sessions makes it possible to detect access to critical functions without required authentication.
The assessment process confirms authentication is present and effective for critical functions, preventing exploitation from missing authentication.
Certification assesses that critical functions have required authentication controls in place.
Requiring authorization servers ensures authorization is performed for protected functions.
Tailoring determines which functions require authentication and selects the appropriate baseline or compensating authentication controls.