CVE-2020-1025

CRITICAL

9.8

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.19.8

SeveridadeCRITICAL

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado7/14/2020

Ultima modificacao2/23/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

microsoft:lyncmicrosoft:sharepoint_enterprise_servermicrosoft:sharepoint_foundationmicrosoft:sharepoint_servermicrosoft:skype_for_business

Fraquezas (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)

Correlacoes IOC

Sem correlacoes registradas

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