同じ製品で同じ時期に公表された 3 件の脆弱性の 1 つです。まとめた解説: fastapi-code-generatorの脆弱性3件、修正版あり
fastapi-code-generator: Import-time RCE via route path -> unescaped @app.get('...') decorator
原文の説明 取得元が公開している説明をそのまま載せています (多くは英語)。
fastapi-code-generator creates FastAPI applications from OpenAPI files. Prior to 0.8.1, the generator inserts an OpenAPI path into a generated @app.get(...) route decorator as a single-quoted generated route string without escaping embedded quotes. An attacker-controlled or attacker-influenced OpenAPI path can close the string and inject a valid Python expression into the decorator argument. Syntax-breaking input only causes generation to fail, but syntactically valid generated code executes with the application's or CI process's privileges when the generated module is imported and the decorator is evaluated. This OpenAPI path sink is distinct from the project's separate operation-summary docstring and additional-response-key sinks. This issue is fixed in version 0.8.1.
出典: CVE.org (CVE Program・cvelistV5) NVD GitHub Advisory
参照URL
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com
- patch github.com
- web github.com