CVE-2021-22118 – spring-web: (re)creating the temporary storage directory could result in a privilege escalation within WebFlux application

https://notcve.org/view.php?id=CVE-2021-22118

In Spring Framework, versions 5.2.x prior to 5.2.15 and versions 5.3.x prior to 5.3.7, a WebFlux application is vulnerable to a privilege escalation: by (re)creating the temporary storage directory, a locally authenticated malicious user can read or modify files that have been uploaded to the WebFlux application, or overwrite arbitrary files with multipart request data. En Spring Framework, versiones 5.2.x anteriores a 5.2.15 y versiones 5.3.x anteriores a 5.3.7, una aplicación WebFlux es vulnerable a una escalada de privilegios: al (re)crear el directorio de almacenamiento temporal, un usuario malicioso autenticado localmente puede leer o modificar archivos que han sido subidos a la aplicación WebFlux, o sobrescribir archivos arbitrarios con petición de datos de múltiples partes • https://security.netapp.com/advisory/ntap-20210713-0005 https://tanzu.vmware.com/security/cve-2021-22118 https://www.oracle.com//security-alerts/cpujul2021.html https://www.oracle.com/security-alerts/cpuapr2022.html https://www.oracle.com/security-alerts/cpujan2022.html https://www.oracle.com/security-alerts/cpujul2022.html https://www.oracle.com/security-alerts/cpuoct2021.html https://access.redhat.com/security/cve/CVE-2021-22118 https://bugzilla.redhat.com/show_bug.cgi?id=1974854 • CWE-269: Improper Privilege Management CWE-281: Improper Preservation of Permissions CWE-668: Exposure of Resource to Wrong Sphere •