Vulnerability · Published Mar 15, 2024 · Assigned by GitHub_M
CVE-2024-28254SpEL Injection in `GET /api/v1/events/subscriptions/validation/condition/<expr>` in OpenMetadata
High 8.8
In plain English
A high-severity OS command injection in OpenMetadata from open-metadata. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 45.7% (higher than 99% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit.
Official description
OpenMetadata is a unified platform for discovery, observability, and governance powered by a central metadata repository, in-depth lineage, and seamless team collaboration. The `AlertUtil::validateExpression` method evaluates an SpEL expression using `getValue` which by default uses the `StandardEvaluationContext`, allowing the expression to reach and interact with Java classes such as `java.lang.Runtime`, leading to Remote Code Execution. The `/api/v1/events/subscriptions/validation/condition/<expression>` endpoint passes user-controlled data `AlertUtil::validateExpession` allowing authenticated (non-admin) users to execute arbitrary system commands on the underlaying operating system. In addition, there is a missing authorization check since `Authorizer.authorize()` is never called in the affected path and, therefore, any authenticated non-admin user is able to trigger this endpoint and evaluate arbitrary SpEL expressions leading to arbitrary command execution. This vulnerability was discovered with the help of CodeQL's Expression language injection (Spring) query and is also tracked as `GHSL-2023-235`. This issue may lead to Remote Code Execution and has been addressed in version 1.2.4. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| open-metadata | OpenMetadata | < 1.2.4 |
Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://github.com/open-metadata/OpenMetadata/security/advisories/GHSA-j86m-rrpr-g8gw x_refsource_CONFIRM
- https://codeql.github.com/codeql-query-help/java/java-spel-expression-injection x_refsource_MISC
- https://github.com/open-metadata/OpenMetadata/blob/84054a85d3478e3e3795fe92daa633ec11c9d6d9/openmetadata-service/src/main/java/org/openmetadata/service/events/subscription/AlertUtil.java#L101 x_refsource_MISC
- https://github.com/open-metadata/OpenMetadata/blob/84054a85d3478e3e3795fe92daa633ec11c9d6d9/openmetadata-service/src/main/java/org/openmetadata/service/events/subscription/AlertUtil.java#L108 x_refsource_MISC
- https://github.com/spring-projects/spring-framework/blob/4e2d3573189b7c0afce62bce29cd915de4077f56/spring-expression/src/main/java/org/springframework/expression/spel/standard/SpelExpression.java#L106 x_refsource_MISC