CVE-2017-9248
Telerik.Web.UI.dll in Progress Telerik UI for ASP.NET AJAX before R2 2017 SP1 and Sitefinity before 10.0.6412.0 does not properly protect Telerik.Web.UI.DialogParametersEncryptionKey or the MachineKey, which makes it easier for remote attackers to defeat cryptographic protection mechanisms, leading to a MachineKey leak, arbitrary file uploads or downloads, XSS, or ASP.NET ViewState compromise.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 9.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 75%
- Percentil entre todas las CVEs puntuadas: 99
- Fecha de la puntuación: 3/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
CISA KEV — explotada activamente
- Añadida al catálogo: 3/11/2021
- Plazo de remediación: 3/5/2022
- Uso conocido en ransomware: Unknown
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1190Exploit Public-Facing Applicationinitial access95 % - Impacto principal
T1552.004Private Keyscredential access90 %
Vulnerabilidad en aplicación web expuesta (AV:N/AC:L/PR:N) que permite derrotar protecciones criptográficas y filtrar MachineKey, credenciales y secretos; exposición de credenciales (T1552.004) y ejecución remota derivada.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (2)
CWE
- CWE-522
- CWE-522
Referencias
- http://www.securityfocus.com/bid/99965
- http://www.telerik.com/blogs/security-alert-for-telerik-ui-for-asp.net-ajax-and-progress-sitefinity
- http://www.telerik.com/support/kb/aspnet-ajax/details/cryptographic-weakness
- https://www.exploit-db.com/exploits/43873/
- http://www.securityfocus.com/bid/99965
- http://www.telerik.com/blogs/security-alert-for-telerik-ui-for-asp.net-ajax-and-progress-sitefinity
- http://www.telerik.com/support/kb/aspnet-ajax/details/cryptographic-weakness
- https://www.exploit-db.com/exploits/43873/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-9248
JSON original (NVD)
Mostrar
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