CVE-2021-21363 – Generator Web Application: Local Privilege Escalation Vulnerability via System Temp Directory
https://notcve.org/view.php?id=CVE-2021-21363
swagger-codegen is an open-source project which contains a template-driven engine to generate documentation, API clients and server stubs in different languages by parsing your OpenAPI / Swagger definition. In swagger-codegen before version 2.4.19, on Unix like systems, the system's temporary directory is shared between all users on that system. A collocated user can observe the process of creating a temporary sub directory in the shared temporary directory and race to complete the creation of the temporary subdirectory. This vulnerability is local privilege escalation because the contents of the `outputFolder` can be appended to by an attacker. As such, code written to this directory, when executed can be attacker controlled. • https://github.com/swagger-api/swagger-codegen/commit/987ea7a30b463cc239580d6ad166c707ae942a89 https://github.com/swagger-api/swagger-codegen/security/advisories/GHSA-pc22-3g76-gm6j • CWE-378: Creation of Temporary File With Insecure Permissions CWE-379: Creation of Temporary File in Directory with Insecure Permissions •
CVE-2021-21364 – Generated Code Contains Local Information Disclosure Vulnerability
https://notcve.org/view.php?id=CVE-2021-21364
swagger-codegen is an open-source project which contains a template-driven engine to generate documentation, API clients and server stubs in different languages by parsing your OpenAPI / Swagger definition. In swagger-codegen before version 2.4.19, on Unix-Like systems, the system temporary directory is shared between all local users. When files/directories are created, the default `umask` settings for the process are respected. As a result, by default, most processes/apis will create files/directories with the permissions `-rw-r--r--` and `drwxr-xr-x` respectively, unless an API that explicitly sets safe file permissions is used. Because this vulnerability impacts generated code, the generated code will remain vulnerable until fixed manually! • https://github.com/swagger-api/swagger-codegen/commit/35adbd552d5f99b3ff1e0e59da228becc85190f2 https://github.com/swagger-api/swagger-codegen/security/advisories/GHSA-hpv8-9rq5-hq7w • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-378: Creation of Temporary File With Insecure Permissions CWE-732: Incorrect Permission Assignment for Critical Resource •
CVE-2017-1000207
https://notcve.org/view.php?id=CVE-2017-1000207
A vulnerability in Swagger-Parser's version <= 1.0.30 and Swagger codegen version <= 2.2.2 yaml parsing functionality results in arbitrary code being executed when a maliciously crafted yaml Open-API specification is parsed. This in particular, affects the 'generate' and 'validate' command in swagger-codegen (<= 2.2.2) and can lead to arbitrary code being executed when these commands are used on a well-crafted yaml specification. Una vulnerabilidad en la funcionalidad de análisis sintáctico yaml en versiones iguales o anteriores a la 1.0.30 de Swagger-Parser y las versiones iguales o anteriores a la 2.2.2 de Swagger codegen resulta en la ejecución de código arbitrario cuando se analiza una especificación yaml Open-API maliciosamente manipulada. En este caso en particular, afecta a los comandos "generate" y "validate" en swagger-codegen (versiones 2.2.2 y anteriores) y puede provocar que se ejecute código arbitrario cuando se utilicen estos comandos en una especificación de yaml especialmente manipulada. • https://github.com/swagger-api/swagger-parser/pull/481 https://lgtm.com/blog/swagger_snakeyaml_CVE-2017-1000207_CVE-2017-1000208 • CWE-502: Deserialization of Untrusted Data •
CVE-2017-1000208
https://notcve.org/view.php?id=CVE-2017-1000208
A vulnerability in Swagger-Parser's (version <= 1.0.30) yaml parsing functionality results in arbitrary code being executed when a maliciously crafted yaml Open-API specification is parsed. This in particular, affects the 'generate' and 'validate' command in swagger-codegen (<= 2.2.2) and can lead to arbitrary code being executed when these commands are used on a well-crafted yaml specification. Una vulnerabilidad en el componente de análisis sintáctico de yaml de Swagger-Parser (versión 1.0.30 y anteriores) resulta en la ejecución de código arbitrario cuando se analiza sintácticamente una especificación Open-API de yaml manipulada de manera maliciosa. En este caso en particular, afecta a los comandos "generate" y "validate" en swagger-codegen (versiones 2.2.2 y anteriores) y puede provocar que se ejecute código arbitrario cuando se utilicen estos comandos en una especificación de yaml especialmente manipulada. • https://github.com/swagger-api/swagger-parser/releases/tag/v1.0.31 https://lgtm.com/blog/swagger_snakeyaml_CVE-2017-1000207_CVE-2017-1000208 • CWE-502: Deserialization of Untrusted Data •