CVE-2020-1025

CRITICAL

9.8

Description

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.

Details CVE

Score CVSS v3.19.8

SeveriteCRITICAL

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

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie7/14/2020

Derniere modification2/23/2026

Sourcenvd

Observations honeypot0

Produits affectes

microsoft:lyncmicrosoft:sharepoint_enterprise_servermicrosoft:sharepoint_foundationmicrosoft:sharepoint_servermicrosoft:skype_for_business

Faiblesses (CWE)

CWE-20

References

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)

Correlations IOC

Aucune correlation enregistree

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