CVE-2020-1025

CRITICAL

9.8

Descripcion

An elevation of privilege vulnerability exists when Microsoft SharePoint Server and Skype for Business Server improperly handle OAuth token validation. An attacker who successfully exploited the vulnerability could bypass authentication and achieve improper access. To exploit this vulnerability, an attacker would need to modify the token. The update addresses the vulnerability by modifying how Microsoft SharePoint Server and Skype for Business Server validate tokens.

Detalles CVE

Puntuacion CVSS v3.19.8

SeveridadCRITICAL

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado7/14/2020

Ultima modificacion2/23/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

microsoft:lyncmicrosoft:sharepoint_enterprise_servermicrosoft:sharepoint_foundationmicrosoft:sharepoint_servermicrosoft:skype_for_business

Debilidades (CWE)

CWE-20

Referencias

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1025(secure@microsoft.com)

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1025(af854a3a-2127-422b-91ae-364da2661108)

Correlaciones IOC

Sin correlaciones registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.