CVE-2023-45822

Unsafe rego built-in allowed in Artifact Hub

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

Artifact Hub is a web-based application that enables finding, installing, and publishing packages and configurations for CNCF projects. During a security audit of Artifact Hub's code base a security researcher identified a bug in which a default unsafe rego built-in was allowed to be used when defining authorization policies. Artifact Hub includes a fine-grained authorization mechanism that allows organizations to define what actions can be performed by their members. It is based on customizable authorization policies that are enforced by the `Open Policy Agent`. Policies are written using `rego` and their data files are expected to be json documents. By default, `rego` allows policies to make HTTP requests, which can be abused to send requests to internal resources and forward the responses to an external entity. In the context of Artifact Hub, this capability should have been disabled. This issue has been resolved in version `1.16.0`. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Artifact Hub es una aplicación basada en web que permite buscar, instalar y publicar paquetes y configuraciones para proyectos CNCF. Durante una auditoría de seguridad del código base de Artifact Hub, un investigador de seguridad identificó un error en el que se permitía el uso de un rego incorporado predeterminado no seguro al definir políticas de autorización. Artifact Hub incluye un mecanismo de autorización detallado que permite a las organizaciones definir qué acciones pueden realizar sus miembros. Se basa en políticas de autorización personalizables que aplica el "Open Policy Agent". Las políticas se escriben utilizando `rego` y se espera que sus archivos de datos sean documentos json. De forma predeterminada, `rego` permite que las políticas realicen solicitudes HTTP, de las cuales se puede abusar para enviar solicitudes a recursos internos y reenviar las respuestas a una entidad externa. En el contexto de Artifact Hub, esta capacidad debería haberse deshabilitado. Este problema se resolvió en la versión `1.16.0`. Se recomienda a los usuarios que actualicen. No se conocen workarounds para esta vulnerabilidad.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-10-13 CVE Reserved
2023-10-19 CVE Published
2024-09-12 CVE Updated
2024-09-18 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-918: Server-Side Request Forgery (SSRF)

CAPEC

References (4)

URL	Tag	Source
https://artifacthub.io/packages/helm/artifact-hub/artifact-hub?modal=changelog&version=1.16.0	Product
https://github.com/artifacthub/hub/security/advisories/GHSA-9pc8-m4vp-ggvf	Third Party Advisory
https://www.openpolicyagent.org	Mitigation
https://www.openpolicyagent.org/docs/latest/#rego	Mitigation

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Artifacthub Search vendor "Artifacthub"		Hub Search vendor "Artifacthub" for product "Hub"				< 1.16.0 Search vendor "Artifacthub" for product "Hub" and version " < 1.16.0"		-		Affected