CVE-2018-8202

Description

An elevation of privilege vulnerability exists in .NET Framework which could allow an attacker to elevate their privilege level, aka ".NET Framework Elevation of Privilege Vulnerability." This affects Microsoft .NET Framework 2.0, Microsoft .NET Framework 3.0, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.5.2, Microsoft .NET Framework 4.6, Microsoft .NET Framework 4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.7.1/4.7.2, Microsoft .NET Framework 3.5, Microsoft .NET Framework 3.5.1, Microsoft .NET Framework 4.6/4.6.1/4.6.2, Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2, Microsoft .NET Framework 4.7.2.

Gravité et risque d'exploitation

CVE-2018-8202 obtient un score CVSS de 0.0/10, soit une gravité non évaluée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 1.31 %, ce qui la place devant 70.1 % des CVE référencées.

Que faire ?

• Vérifiez si Microsoft .NET Framework (versions 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 7 for x64-based Systems Service Pack 1, 4.6 on Windows Server 2008 for 32-bit Systems Service Pack 2, 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012 R2 (Server Core installation), 4.7.1/4.7.2 on Windows 10 Version 1709 for x64-based Systems, 3.5 on Windows 10 Version 1803 for 32-bit Systems, 3.5 on Windows 10 for 32-bit Systems, 3.5 on Windows 8.1 for 32-bit systems, 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation), 4.7.2 on Windows 10 Version 1803 for 32-bit Systems, 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012, 4.7.2 on Windows 10 Version 1803 for x64-based Systems, 3.5.1 on Windows 7 for 32-bit Systems Service Pack 1, 3.5 on Windows 10 Version 1703 for x64-based Systems, 3.5 on Windows 10 Version 1709 for 32-bit Systems, 3.5 on Windows 10 Version 1803 for x64-based Systems, 4.5.2 on Windows 8.1 for x64-based systems, 3.5.1 on Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1, 3.5 on Windows 8.1 for x64-based systems, 3.5 on Windows 10 Version 1607 for 32-bit Systems, 3.5 on Windows 10 Version 1709 for x64-based Systems, 4.5.2 on Windows Server 2008 for x64-based Systems Service Pack 2, 3.5 on Windows Server, version 1803 (Server Core Installation), 4.7.1/4.7.2 on Windows Server, version 1709 (Server Core Installation), 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012 R2, 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1, 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 7 for 32-bit Systems Service Pack 1, 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows RT 8.1, 3.5 on Windows Server 2016 (Server Core installation), 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012 (Server Core installation), 4.5.2 on Windows Server 2012 R2, 4.5.2 on Windows Server 2012 R2 (Server Core installation), 4.6/4.6.1/4.6.2 on Windows 10 for 32-bit Systems, 4.6/4.6.1/4.6.2 on Windows 10 for x64-based Systems, 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation), 3.5 on Windows 10 for x64-based Systems, 4.5.2 on Windows Server 2008 for 32-bit Systems Service Pack 2, 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 8.1 for 32-bit systems, 4.5.2 on Windows 7 for 32-bit Systems Service Pack 1, 4.7.1/4.7.2 on Windows 10 Version 1709 for 32-bit Systems, 3.5 on Windows Server, version 1709 (Server Core Installation), 4.5.2 on Windows Server 2012 (Server Core installation), 4.5.2 on Windows RT 8.1, 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit Systems, 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 8.1 for x64-based systems, 3.5.1 on Windows 7 for x64-based Systems Service Pack 1, 3.5 on Windows Server 2016, 2.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2, 3.5 on Windows 10 Version 1607 for x64-based Systems, 3.5 on Windows Server 2012 (Server Core installation), 3.5 on Windows Server 2012 R2, 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation), 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation), 4.7.2 on Windows Server, version 1803 (Server Core Installation), 4.5.2 on Windows 7 for x64-based Systems Service Pack 1, 3.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2, 3.0 Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2, 2.0 Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2, 3.5 on Windows Server 2012 R2 (Server Core installation), 4.5.2 on Windows 8.1 for 32-bit systems, 4.5.2 on Windows Server 2012, 4.6 on Windows Server 2008 for x64-based Systems Service Pack 2, 3.5 on Windows Server 2012, 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems, 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016, 4.7/4.7.1/4.7.2 on Windows 10 Version 1703 for 32-bit Systems, 4.7/4.7.1/4.7.2 on Windows 10 Version 1703 for x64-based Systems, 3.5 on Windows 10 Version 1703 for 32-bit Systems, 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1, 2.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2, 3.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2) est présent sur votre parc.
• Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
• À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
• Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.

Références

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8202
• http://www.securityfocus.com/bid/104665
• http://www.securitytracker.com/id/1041257