In Universal Media Server (UMS) 7.1.0, the XML parsing engine for SSDP/UPnP functionality is vulnerable to an XML External Entity…
mitre·CWE-611·Published 2018-08-03
In Universal Media Server (UMS) 7.1.0, the XML parsing engine for SSDP/UPnP functionality is vulnerable to an XML External Entity Processing (XXE) attack. Remote, unauthenticated attackers can use this vulnerability to: (1) Access arbitrary files from the filesystem with the same permission as the user account running UMS, (2) Initiate SMB connections to capture a NetNTLM challenge/response and crack to cleartext password, or (3) Initiate SMB connections to relay a NetNTLM challenge/response and achieve Remote Command Execution in Windows domains.
In Universal Media Server (UMS) 7.1.0, the XML parsing engine for SSDP/UPnP functionality is vulnerable to an XML External Entity Processing (XXE) attack. Remote, unauthenticated attackers can use this vulnerability to: (1) Access arbitrary files from the filesystem with the same permission as the user account running UMS, (2) Initiate SMB connections to capture a NetNTLM challenge/response and crack to cleartext password, or (3) Initiate SMB connections to relay a NetNTLM challenge/response and achieve Remote Command Execution in Windows domains.
En Universal Media Server (UMS) 7.1.0, el motor de análisis XML para la funcionalidad SSDP/UPnP es vulnerable a un ataque de procesamiento XEE (XML External Entity). Los atacantes remotos no autenticados pueden emplear esta vulnerabilidad para (1) acceder a archivos arbitrarios desde el sistema de archivos con los mismos permisos que la cuenta de usuario que ejecuta UMS; (2) iniciar conexiones SMB para capturar un desafío/respuesta NetNTLM y descifrar una contraseña en texto claro; o (3) iniciar conexiones SMB para retransmitir un desafío/respuesta NetNTLM y lograr la ejecución remota de comandos en dominios de Windows.
| Version | Type | Source | Base | Exp | Impact | Vector |
|---|---|---|---|---|---|---|
| 2.0 | Primary | NVD | 7.5 | 10.0 | 6.4 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| 3.0 | Primary | NVD | 9.8 | 3.9 | 5.9 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |