Microsoft’un Aralık 2021 Yamasını ve onunla birlikte altı sıfırıncı gün güvenlik açığı ve toplam 67 güvenlik açığı için düzeltmeler geliyor. Bu güncellemeler, Active Directory , Remote Code Execution , DOS ve Spoofing güvenlik açıklarında düzeltme sağlar.
Microsoft, bugünün güncellemesiyle, yedisi Kritik ve 60’ı Önemli olarak sınıflandırılan 55 güvenlik açığını (Microsoft Edge dahil değil) düzeltti.
- 21 Elevation of Privilege Vulnerabilities
- 26 Remote Code Execution Vulnerabilities
- 10 Information Disclosure Vulnerabilities
- 3 Denial of Service Vulnerabilities
- 7 Spoofing Vulnerabilities
Yarım düzine ZERO-DAY güvenlik tehditleri düzeltildi.
Aralık Salı Yaması, etkin olarak yararlanılan bir Windows AppX Installer güvenlik açığıyla birlikte altı sıfırıncı gün güvenlik açığı için düzeltmeler içeriyor .
Microsoft, bir güvenlik açığı kamuya açıklanırsa veya resmi bir düzeltme olmadan aktif olarak istismar edilirse, bir güvenlik açığını sıfır gün olarak sınıflandırır.
Aktif olarak yararlanılan Windows AppX Installer sıfır gün güvenlik açığı, CVE-2021-43890 olarak izlenir ve Emotet, TrickBot ve BazarLoader dahil olmak üzere çeşitli kötü amaçlı yazılım dağıtım kampanyalarında kullanılır .
Microsoft ayrıca, Aralık 2021 Yaması , saldırılarda yararlanıldığı bilinmeyen, genel olarak açıklanan beş sıfır gün güvenlik açığını da düzeltti.
- CVE-2021-43240 – NTFS Kısa Ad Yükselmesi Güvenlik Açığı Ayarladı
- CVE-2021-41333 – Windows Yazdırma Biriktiricisinde Ayrıcalık Yükselmesi Güvenlik Açığı
- CVE-2021-43880 – Windows Mobile Aygıt Yönetiminde Ayrıcalık Yükselmesi Güvenlik Açığı
- CVE-2021-43883 – Windows Installer’da Ayrıcalık Yükselmesi Güvenlik Açığı
- CVE-2021-43893 – Windows Şifreleme Dosya Sistemi (EFS) Ayrıcalık Yükselmesi Güvenlik Açığı
Aralık 2021 Yaması Salı Güvenlik Güncellemeleri
Aşağıda, Aralık 2021 Yaması güncellemelerinde çözülen güvenlik açıklarının ve yayınlanan önerilerin tam listesi bulunmaktadır. Her bir güvenlik açığının ve etkilediği sistemlerin tam açıklamasına erişmek için raporun tamamını buradan görüntüleyebilirsiniz .
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| Tag | CVE ID | CVE Title | Severity |
|---|---|---|---|
| Apps | CVE-2021-43890 | Windows AppX Installer Spoofing Vulnerability | Important |
| ASP.NET Core & Visual Studio | CVE-2021-43877 | ASP.NET Core and Visual Studio Elevation of Privilege Vulnerability | Important |
| Azure Bot Framework SDK | CVE-2021-43225 | Bot Framework SDK Remote Code Execution Vulnerability | Important |
| BizTalk ESB Toolkit | CVE-2021-43892 | Microsoft BizTalk ESB Toolkit Spoofing Vulnerability | Important |
| Internet Storage Name Service | CVE-2021-43215 | iSNS Server Memory Corruption Vulnerability Can Lead to Remote Code Execution | Critical |
| Microsoft Defender for IoT | CVE-2021-41365 | Microsoft Defender for IoT Remote Code Execution Vulnerability | Important |
| Microsoft Defender for IoT | CVE-2021-42311 | Microsoft Defender for IoT Remote Code Execution Vulnerability | Important |
| Microsoft Defender for IoT | CVE-2021-42310 | Microsoft Defender for IoT Remote Code Execution Vulnerability | Critical |
| Microsoft Defender for IoT | CVE-2021-43882 | Microsoft Defender for IoT Remote Code Execution Vulnerability | Important |
| Microsoft Defender for IoT | CVE-2021-43888 | Microsoft Defender for IoT Information Disclosure Vulnerability | Important |
| Microsoft Defender for IoT | CVE-2021-42314 | Microsoft Defender for IoT Remote Code Execution Vulnerability | Important |
| Microsoft Defender for IoT | CVE-2021-42313 | Microsoft Defender for IoT Remote Code Execution Vulnerability | Important |
| Microsoft Defender for IoT | CVE-2021-42312 | Microsoft Defender for IOT Elevation of Privilege Vulnerability | Important |
| Microsoft Defender for IoT | CVE-2021-43889 | Microsoft Defender for IoT Remote Code Execution Vulnerability | Important |
| Microsoft Defender for IoT | CVE-2021-42315 | Microsoft Defender for IoT Remote Code Execution Vulnerability | Important |
| Microsoft Devices | CVE-2021-43899 | Microsoft 4K Wireless Display Adapter Remote Code Execution Vulnerability | Critical |
| Microsoft Edge (Chromium-based) | CVE-2021-4056 | Chromium: CVE-2021-4056: Type Confusion in loader | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2021-4055 | Chromium: CVE-2021-4055 Heap buffer overflow in extensions | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2021-4054 | Chromium: CVE-2021-4054 Incorrect security UI in autofill | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2021-4052 | Chromium: CVE-2021-4052 Use after free in web apps | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2021-4053 | Chromium: CVE-2021-4053 Use after free in UI | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2021-4065 | Chromium: CVE-2021-4065 Use after free in autofill | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2021-4064 | Chromium: CVE-2021-4064 Use after free in screen capture | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2021-4063 | Chromium: CVE-2021-4063 Use after free in developer tools | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2021-4068 | Chromium: CVE-2021-4068 Insufficient validation of untrusted input in new tab page | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2021-4067 | Chromium: CVE-2021-4067 Use after free in window manager | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2021-4066 | Chromium: CVE-2021-4066 Integer underflow in ANGLE | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2021-4059 | Chromium: CVE-2021-4059 Insufficient data validation in loader | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2021-4062 | Chromium: CVE-2021-4062 Heap buffer overflow in BFCache | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2021-4061 | Chromium: CVE-2021-4061 Type Confusion in V8 | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2021-4058 | Chromium: CVE-2021-4058 Heap buffer overflow in ANGLE | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2021-4057 | Chromium: CVE-2021-4057 Use after free in file API | Unknown |
| Microsoft Local Security Authority Server (lsasrv) | CVE-2021-43216 | Microsoft Local Security Authority Server (lsasrv) Information Disclosure Vulnerability | Important |
| Microsoft Message Queuing | CVE-2021-43236 | Microsoft Message Queuing Information Disclosure Vulnerability | Important |
| Microsoft Message Queuing | CVE-2021-43222 | Microsoft Message Queuing Information Disclosure Vulnerability | Important |
| Microsoft Office | CVE-2021-43875 | Microsoft Office Graphics Remote Code Execution Vulnerability | Important |
| Microsoft Office | CVE-2021-42295 | Visual Basic for Applications Information Disclosure Vulnerability | Important |
| Microsoft Office | CVE-2021-43905 | Microsoft Office app Remote Code Execution Vulnerability | Critical |
| Microsoft Office Access | CVE-2021-42293 | Microsoft Jet Red Database Engine and Access Connectivity Engine Elevation of Privilege Vulnerability | Important |
| Microsoft Office Excel | CVE-2021-43256 | Microsoft Excel Remote Code Execution Vulnerability | Important |
| Microsoft Office SharePoint | CVE-2021-42309 | Microsoft SharePoint Server Remote Code Execution Vulnerability | Important |
| Microsoft Office SharePoint | CVE-2021-42320 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Office SharePoint | CVE-2021-43242 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Office SharePoint | CVE-2021-42294 | Microsoft SharePoint Server Remote Code Execution Vulnerability | Important |
| Microsoft PowerShell | CVE-2021-43896 | Microsoft PowerShell Spoofing Vulnerability | Important |
| Microsoft Windows Codecs Library | CVE-2021-41360 | HEVC Video Extensions Remote Code Execution Vulnerability | Important |
| Microsoft Windows Codecs Library | CVE-2021-43248 | Windows Digital Media Receiver Elevation of Privilege Vulnerability | Important |
| Microsoft Windows Codecs Library | CVE-2021-43214 | Web Media Extensions Remote Code Execution Vulnerability | Important |
| Microsoft Windows Codecs Library | CVE-2021-40452 | HEVC Video Extensions Remote Code Execution Vulnerability | Important |
| Microsoft Windows Codecs Library | CVE-2021-40453 | HEVC Video Extensions Remote Code Execution Vulnerability | Important |
| Microsoft Windows Codecs Library | CVE-2021-43243 | VP9 Video Extensions Information Disclosure Vulnerability | Important |
| Office Developer Platform | CVE-2021-43255 | Microsoft Office Trust Center Spoofing Vulnerability | Important |
| Remote Desktop Client | CVE-2021-43233 | Remote Desktop Client Remote Code Execution Vulnerability | Critical |
| Role: Windows Fax Service | CVE-2021-43234 | Windows Fax Service Remote Code Execution Vulnerability | Important |
| Role: Windows Hyper-V | CVE-2021-43246 | Windows Hyper-V Denial of Service Vulnerability | Important |
| Visual Studio Code | CVE-2021-43891 | Visual Studio Code Remote Code Execution Vulnerability | Important |
| Visual Studio Code | CVE-2021-43908 | Visual Studio Code Spoofing Vulnerability | Important |
| Visual Studio Code – WSL Extension | CVE-2021-43907 | Visual Studio Code WSL Extension Remote Code Execution Vulnerability | Critical |
| Windows Common Log File System Driver | CVE-2021-43226 | Windows Common Log File System Driver Elevation of Privilege Vulnerability | Important |
| Windows Common Log File System Driver | CVE-2021-43224 | Windows Common Log File System Driver Information Disclosure Vulnerability | Important |
| Windows Common Log File System Driver | CVE-2021-43207 | Windows Common Log File System Driver Elevation of Privilege Vulnerability | Important |
| Windows Digital TV Tuner | CVE-2021-43245 | Windows Digital TV Tuner Elevation of Privilege Vulnerability | Important |
| Windows DirectX | CVE-2021-43219 | DirectX Graphics Kernel File Denial of Service Vulnerability | Important |
| Windows Encrypting File System (EFS) | CVE-2021-43217 | Windows Encrypting File System (EFS) Remote Code Execution Vulnerability | Critical |
| Windows Encrypting File System (EFS) | CVE-2021-43893 | Windows Encrypting File System (EFS) Elevation of Privilege Vulnerability | Important |
| Windows Event Tracing | CVE-2021-43232 | Windows Event Tracing Remote Code Execution Vulnerability | Important |
| Windows Installer | CVE-2021-43883 | Windows Installer Elevation of Privilege Vulnerability | Important |
| Windows Kernel | CVE-2021-43244 | Windows Kernel Information Disclosure Vulnerability | Important |
| Windows Media | CVE-2021-40441 | Windows Media Center Elevation of Privilege Vulnerability | Important |
| Windows Mobile Device Management | CVE-2021-43880 | Windows Mobile Device Management Elevation of Privilege Vulnerability | Important |
| Windows NTFS | CVE-2021-43240 | NTFS Set Short Name Elevation of Privilege Vulnerability | Important |
| Windows NTFS | CVE-2021-43231 | Windows NTFS Elevation of Privilege Vulnerability | Important |
| Windows NTFS | CVE-2021-43230 | Windows NTFS Elevation of Privilege Vulnerability | Important |
| Windows NTFS | CVE-2021-43229 | Windows NTFS Elevation of Privilege Vulnerability | Important |
| Windows Print Spooler Components | CVE-2021-41333 | Windows Print Spooler Elevation of Privilege Vulnerability | Important |
| Windows Remote Access Connection Manager | CVE-2021-43223 | Windows Remote Access Connection Manager Elevation of Privilege Vulnerability | Important |
| Windows Remote Access Connection Manager | CVE-2021-43238 | Windows Remote Access Elevation of Privilege Vulnerability | Important |
| Windows Storage | CVE-2021-43235 | Storage Spaces Controller Information Disclosure Vulnerability | Important |
| Windows Storage Spaces Controller | CVE-2021-43227 | Storage Spaces Controller Information Disclosure Vulnerability | Important |
| Windows SymCrypt | CVE-2021-43228 | SymCrypt Denial of Service Vulnerability | Important |
| Windows TCP/IP | CVE-2021-43247 | Windows TCP/IP Driver Elevation of Privilege Vulnerability | Important |
| Windows Update Stack | CVE-2021-43237 | Windows Setup Elevation of Privilege Vulnerability | Important |
| Windows Update Stack | CVE-2021-43239 | Windows Recovery Environment Agent Elevation of Privilege Vulnerability | Important |
