🛡️ Executive Summary
- Le vulnerabilità di esecuzione remota di codice corrette sono 45, la categoria più numerosa tra quelle elencate.
- La falla zero-day CVE-2023-28252 riguarda il driver CLFS di Windows e può consentire di ottenere privilegi SYSTEM; Kaspersky l’ha collegata agli attacchi ransomware Nokoyawa.
- Alcune vulnerabilità in Office, Word e Publisher possono essere sfruttate aprendo documenti dannosi.
Microsoft ha rilasciato gli aggiornamenti di sicurezza del Patch Tuesday di aprile 2023, correggendo un totale di 97 vulnerabilità, tra cui una attivamente sfruttata di tipo zero-day.
Cosa leggere
Dettagli sulle vulnerabilità corrette
Le sette vulnerabilità più gravi sono classificate come “critiche” perché consentono l’esecuzione remota di codice, la più grave tra le vulnerabilità. Di seguito è riportato il numero di vulnerabilità per ciascuna categoria:
- 20 vulnerabilità di innalzamento dei privilegi
- 8 vulnerabilità di elusione delle funzioni di sicurezza
- 45 vulnerabilità di esecuzione remota di codice
- 10 vulnerabilità di divulgazione di informazioni
- 9 vulnerabilità di denial of service
- 6 vulnerabilità di spoofing
Il conteggio non include diciassette vulnerabilità di Microsoft Edge corrette il 6 aprile.
La correzione dello zero-day
Il Patch Tuesday di questo mese risolve una vulnerabilità zero-day attivamente sfruttata negli attacchi. Microsoft classifica una vulnerabilità come zero-day se viene divulgata pubblicamente o sfruttata attivamente senza una correzione ufficiale disponibile.
La vulnerabilità zero-day attivamente sfruttata negli aggiornamenti di oggi è:
- CVE-2023-28252 – Windows Common Log File System Driver Elevation of Privilege Vulnerability
Microsoft ha corretto una vulnerabilità di innalzamento dei privilegi nel driver CLFS di Windows che innalza i privilegi a SYSTEM, il livello di privilegio utente più alto in Windows.
“Un aggressore che sfruttasse con successo questa vulnerabilità potrebbe ottenere privilegi di sistema”, afferma l’avviso di Microsoft.
La vulnerabilità è stata scoperta da Genwei Jiang di Mandiant e Quan Jin di DBAPPSecurity WeBin Lab. Tuttavia, Kaspersky afferma di averla anch’essa scoperta e segnalata a Microsoft dopo averla vista sfruttata negli attacchi ransomware Nokoyawa.
Sottotitolo H2: Aggiornamenti di sicurezza per altre applicazioni Microsoft e prodotti di altri fornitori
Anche se non sfruttate attivamente, sono state corrette vulnerabilità di esecuzione remota di codice in Microsoft Office, Word e Publisher che possono essere sfruttate semplicemente aprendo documenti dannosi. Queste vulnerabilità sono tracciate come CVE-2023-28285, CVE-2023-28295, CVE-2023-28287 e CVE-2023-28311.
Continua con:
Poiché questo tipo di vulnerabilità è prezioso nelle campagne di phishing, è probabile che gli attori delle minacce cerchino di scoprire come possono essere sfruttate per la distribuzione di malware. Pertanto, si raccomanda vivamente
| Tag | CVE ID | CVE Title | Severity |
|---|---|---|---|
| .NET Core | CVE-2023-28260 | .NET DLL Hijacking Remote Code Execution Vulnerability | Important |
| Azure Machine Learning | CVE-2023-28312 | Azure Machine Learning Information Disclosure Vulnerability | Important |
| Azure Service Connector | CVE-2023-28300 | Azure Service Connector Security Feature Bypass Vulnerability | Important |
| Microsoft Bluetooth Driver | CVE-2023-28227 | Windows Bluetooth Driver Remote Code Execution Vulnerability | Important |
| Microsoft Defender for Endpoint | CVE-2023-24860 | Microsoft Defender Denial of Service Vulnerability | Important |
| Microsoft Dynamics | CVE-2023-28314 | Microsoft Dynamics 365 (on-premises) Cross-site Scripting Vulnerability | Important |
| Microsoft Dynamics | CVE-2023-28309 | Microsoft Dynamics 365 (on-premises) Cross-site Scripting Vulnerability | Important |
| Microsoft Dynamics 365 Customer Voice | CVE-2023-28313 | Microsoft Dynamics 365 Customer Voice Cross-Site Scripting Vulnerability | Important |
| Microsoft Edge (Chromium-based) | CVE-2023-28284 | Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability | Moderate |
| Microsoft Edge (Chromium-based) | CVE-2023-1823 | Chromium: CVE-2023-1823 Inappropriate implementation in FedCM | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2023-28301 | Microsoft Edge (Chromium-based) Tampering Vulnerability | Low |
| Microsoft Edge (Chromium-based) | CVE-2023-1810 | Chromium: CVE-2023-1810 Heap buffer overflow in Visuals | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2023-24935 | Microsoft Edge (Chromium-based) Spoofing Vulnerability | Low |
| Microsoft Edge (Chromium-based) | CVE-2023-1819 | Chromium: CVE-2023-1819 Out of bounds read in Accessibility | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2023-1818 | Chromium: CVE-2023-1818 Use after free in Vulkan | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2023-1814 | Chromium: CVE-2023-1814 Insufficient validation of untrusted input in Safe Browsing | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2023-1821 | Chromium: CVE-2023-1821 Inappropriate implementation in WebShare | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2023-1811 | Chromium: CVE-2023-1811 Use after free in Frames | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2023-1820 | Chromium: CVE-2023-1820 Heap buffer overflow in Browser History | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2023-1816 | Chromium: CVE-2023-1816 Incorrect security UI in Picture In Picture | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2023-1815 | Chromium: CVE-2023-1815 Use after free in Networking APIs | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2023-1822 | Chromium: CVE-2023-1822 Incorrect security UI in Navigation | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2023-1813 | Chromium: CVE-2023-1813 Inappropriate implementation in Extensions | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2023-1812 | Chromium: CVE-2023-1812 Out of bounds memory access in DOM Bindings | Unknown |
| Microsoft Edge (Chromium-based) | CVE-2023-1817 | Chromium: CVE-2023-1817 Insufficient policy enforcement in Intents | Unknown |
| Microsoft Graphics Component | CVE-2023-24912 | Windows Graphics Component Elevation of Privilege Vulnerability | Important |
| Microsoft Message Queuing | CVE-2023-21769 | Microsoft Message Queuing Denial of Service Vulnerability | Important |
| Microsoft Message Queuing | CVE-2023-21554 | Microsoft Message Queuing Remote Code Execution Vulnerability | Critical |
| Microsoft Office | CVE-2023-28285 | Microsoft Office Graphics Remote Code Execution Vulnerability | Important |
| Microsoft Office Publisher | CVE-2023-28295 | Microsoft Publisher Remote Code Execution Vulnerability | Important |
| Microsoft Office Publisher | CVE-2023-28287 | Microsoft Publisher Remote Code Execution Vulnerability | Important |
| Microsoft Office SharePoint | CVE-2023-28288 | Microsoft SharePoint Server Spoofing Vulnerability | Important |
| Microsoft Office Word | CVE-2023-28311 | Microsoft Word Remote Code Execution Vulnerability | Important |
| Microsoft PostScript Printer Driver | CVE-2023-28243 | Microsoft PostScript and PCL6 Class Printer Driver Remote Code Execution Vulnerability | Important |
| Microsoft Printer Drivers | CVE-2023-24883 | Microsoft PostScript and PCL6 Class Printer Driver Information Disclosure Vulnerability | Important |
| Microsoft Printer Drivers | CVE-2023-24927 | Microsoft PostScript and PCL6 Class Printer Driver Remote Code Execution Vulnerability | Important |
| Microsoft Printer Drivers | CVE-2023-24925 | Microsoft PostScript and PCL6 Class Printer Driver Remote Code Execution Vulnerability | Important |
| Microsoft Printer Drivers | CVE-2023-24924 | Microsoft PostScript and PCL6 Class Printer Driver Remote Code Execution Vulnerability | Important |
| Microsoft Printer Drivers | CVE-2023-24885 | Microsoft PostScript and PCL6 Class Printer Driver Remote Code Execution Vulnerability | Important |
| Microsoft Printer Drivers | CVE-2023-24928 | Microsoft PostScript and PCL6 Class Printer Driver Remote Code Execution Vulnerability | Important |
| Microsoft Printer Drivers | CVE-2023-24884 | Microsoft PostScript and PCL6 Class Printer Driver Remote Code Execution Vulnerability | Important |
| Microsoft Printer Drivers | CVE-2023-24926 | Microsoft PostScript and PCL6 Class Printer Driver Remote Code Execution Vulnerability | Important |
| Microsoft Printer Drivers | CVE-2023-24929 | Microsoft PostScript and PCL6 Class Printer Driver Remote Code Execution Vulnerability | Important |
| Microsoft Printer Drivers | CVE-2023-24887 | Microsoft PostScript and PCL6 Class Printer Driver Remote Code Execution Vulnerability | Important |
| Microsoft Printer Drivers | CVE-2023-24886 | Microsoft PostScript and PCL6 Class Printer Driver Remote Code Execution Vulnerability | Important |
| Microsoft WDAC OLE DB provider for SQL | CVE-2023-28275 | Microsoft WDAC OLE DB provider for SQL Server Remote Code Execution Vulnerability | Important |
| Microsoft Windows DNS | CVE-2023-28256 | Windows DNS Server Remote Code Execution Vulnerability | Important |
| Microsoft Windows DNS | CVE-2023-28278 | Windows DNS Server Remote Code Execution Vulnerability | Important |
| Microsoft Windows DNS | CVE-2023-28307 | Windows DNS Server Remote Code Execution Vulnerability | Important |
| Microsoft Windows DNS | CVE-2023-28306 | Windows DNS Server Remote Code Execution Vulnerability | Important |
| Microsoft Windows DNS | CVE-2023-28223 | Windows Domain Name Service Remote Code Execution Vulnerability | Important |
| Microsoft Windows DNS | CVE-2023-28254 | Windows DNS Server Remote Code Execution Vulnerability | Important |
| Microsoft Windows DNS | CVE-2023-28305 | Windows DNS Server Remote Code Execution Vulnerability | Important |
| Microsoft Windows DNS | CVE-2023-28308 | Windows DNS Server Remote Code Execution Vulnerability | Important |
| Microsoft Windows DNS | CVE-2023-28255 | Windows DNS Server Remote Code Execution Vulnerability | Important |
| Microsoft Windows DNS | CVE-2023-28277 | Windows DNS Server Information Disclosure Vulnerability | Important |
| SQL Server | CVE-2023-23384 | Microsoft SQL Server Remote Code Execution Vulnerability | Important |
| SQL Server | CVE-2023-23375 | Microsoft ODBC and OLE DB Remote Code Execution Vulnerability | Important |
| SQL Server | CVE-2023-28304 | Microsoft ODBC and OLE DB Remote Code Execution Vulnerability | Important |
| Visual Studio | CVE-2023-28299 | Visual Studio Spoofing Vulnerability | Important |
| Visual Studio | CVE-2023-28262 | Visual Studio Elevation of Privilege Vulnerability | Important |
| Visual Studio | CVE-2023-28263 | Visual Studio Information Disclosure Vulnerability | Important |
| Visual Studio | CVE-2023-28296 | Visual Studio Remote Code Execution Vulnerability | Important |
| Visual Studio Code | CVE-2023-24893 | Visual Studio Code Remote Code Execution Vulnerability | Important |
| Windows Active Directory | CVE-2023-28302 | Microsoft Message Queuing Denial of Service Vulnerability | Important |
| Windows ALPC | CVE-2023-28236 | Windows Kernel Elevation of Privilege Vulnerability | Important |
| Windows ALPC | CVE-2023-28216 | Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability | Important |
| Windows Ancillary Function Driver for WinSock | CVE-2023-28218 | Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability | Important |
| Windows Boot Manager | CVE-2023-28269 | Windows Boot Manager Security Feature Bypass Vulnerability | Important |
| Windows Boot Manager | CVE-2023-28249 | Windows Boot Manager Security Feature Bypass Vulnerability | Important |
| Windows Clip Service | CVE-2023-28273 | Windows Clip Service Elevation of Privilege Vulnerability | Important |
| Windows CNG Key Isolation Service | CVE-2023-28229 | Windows CNG Key Isolation Service Elevation of Privilege Vulnerability | Important |
| Windows Common Log File System Driver | CVE-2023-28266 | Windows Common Log File System Driver Information Disclosure Vulnerability | Important |
| Windows Common Log File System Driver | CVE-2023-28252 | Windows Common Log File System Driver Elevation of Privilege Vulnerability | Important |
| Windows DHCP Server | CVE-2023-28231 | DHCP Server Service Remote Code Execution Vulnerability | Critical |
| Windows Enroll Engine | CVE-2023-28226 | Windows Enroll Engine Security Feature Bypass Vulnerability | Important |
| Windows Error Reporting | CVE-2023-28221 | Windows Error Reporting Service Elevation of Privilege Vulnerability | Important |
| Windows Group Policy | CVE-2023-28276 | Windows Group Policy Security Feature Bypass Vulnerability | Important |
| Windows Internet Key Exchange (IKE) Protocol | CVE-2023-28238 | Windows Internet Key Exchange (IKE) Protocol Extensions Remote Code Execution Vulnerability | Important |
| Windows Kerberos | CVE-2023-28244 | Windows Kerberos Elevation of Privilege Vulnerability | Important |
| Windows Kernel | CVE-2023-28271 | Windows Kernel Memory Information Disclosure Vulnerability | Important |
| Windows Kernel | CVE-2023-28248 | Windows Kernel Elevation of Privilege Vulnerability | Important |
| Windows Kernel | CVE-2023-28222 | Windows Kernel Elevation of Privilege Vulnerability | Important |
| Windows Kernel | CVE-2023-28272 | Windows Kernel Elevation of Privilege Vulnerability | Important |
| Windows Kernel | CVE-2023-28293 | Windows Kernel Elevation of Privilege Vulnerability | Important |
| Windows Kernel | CVE-2023-28253 | Windows Kernel Information Disclosure Vulnerability | Important |
| Windows Kernel | CVE-2023-28237 | Windows Kernel Remote Code Execution Vulnerability | Important |
| Windows Kernel | CVE-2023-28298 | Windows Kernel Denial of Service Vulnerability | Important |
| Windows Layer 2 Tunneling Protocol | CVE-2023-28219 | Layer 2 Tunneling Protocol Remote Code Execution Vulnerability | Critical |
| Windows Layer 2 Tunneling Protocol | CVE-2023-28220 | Layer 2 Tunneling Protocol Remote Code Execution Vulnerability | Critical |
| Windows Lock Screen | CVE-2023-28270 | Windows Lock Screen Security Feature Bypass Vulnerability | Important |
| Windows Lock Screen | CVE-2023-28235 | Windows Lock Screen Security Feature Bypass Vulnerability | Important |
| Windows Netlogon | CVE-2023-28268 | Netlogon RPC Elevation of Privilege Vulnerability | Important |
| Windows Network Address Translation (NAT) | CVE-2023-28217 | Windows Network Address Translation (NAT) Denial of Service Vulnerability | Important |
| Windows Network File System | CVE-2023-28247 | Windows Network File System Information Disclosure Vulnerability | Important |
| Windows Network Load Balancing | CVE-2023-28240 | Windows Network Load Balancing Remote Code Execution Vulnerability | Important |
| Windows NTLM | CVE-2023-28225 | Windows NTLM Elevation of Privilege Vulnerability | Important |
| Windows PGM | CVE-2023-28250 | Windows Pragmatic General Multicast (PGM) Remote Code Execution Vulnerability | Critical |
| Windows Point-to-Point Protocol over Ethernet (PPPoE) | CVE-2023-28224 | Windows Point-to-Point Protocol over Ethernet (PPPoE) Remote Code Execution Vulnerability | Important |
| Windows Point-to-Point Tunneling Protocol | CVE-2023-28232 | Windows Point-to-Point Tunneling Protocol Remote Code Execution Vulnerability | Critical |
| Windows Raw Image Extension | CVE-2023-28291 | Raw Image Extension Remote Code Execution Vulnerability | Critical |
| Windows Raw Image Extension | CVE-2023-28292 | Raw Image Extension Remote Code Execution Vulnerability | Important |
| Windows RDP Client | CVE-2023-28228 | Windows Spoofing Vulnerability | Important |
| Windows RDP Client | CVE-2023-28267 | Remote Desktop Protocol Client Information Disclosure Vulnerability | Important |
| Windows Registry | CVE-2023-28246 | Windows Registry Elevation of Privilege Vulnerability | Important |
| Windows RPC API | CVE-2023-21729 | Remote Procedure Call Runtime Information Disclosure Vulnerability | Important |
| Windows RPC API | CVE-2023-21727 | Remote Procedure Call Runtime Remote Code Execution Vulnerability | Important |
| Windows RPC API | CVE-2023-28297 | Windows Remote Procedure Call Service (RPCSS) Elevation of Privilege Vulnerability | Important |
| Windows Secure Channel | CVE-2023-24931 | Windows Secure Channel Denial of Service Vulnerability | Important |
| Windows Secure Channel | CVE-2023-28233 | Windows Secure Channel Denial of Service Vulnerability | Important |
| Windows Secure Socket Tunneling Protocol (SSTP) | CVE-2023-28241 | Windows Secure Socket Tunneling Protocol (SSTP) Denial of Service Vulnerability | Important |
| Windows Transport Security Layer (TLS) | CVE-2023-28234 | Windows Secure Channel Denial of Service Vulnerability | Important |
| Windows Win32K | CVE-2023-28274 | Windows Win32k Elevation of Privilege Vulnerability | Important |
| Windows Win32K | CVE-2023-24914 | Win32k Elevation of Privilege Vulnerability | Important |
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