The remote Windows host is missing security update 4556852 or cumulative update 4556840. It is, therefore, affected by multiple vulnerabilities :

  - A denial of service vulnerability exists when .NET Core     or .NET Framework improperly handles web requests. An     attacker who successfully exploited this vulnerability     could cause a denial of service against a .NET Core or     .NET Framework web application. The vulnerability can be     exploited remotely, without authentication. A remote     unauthenticated attacker could exploit this     vulnerability by issuing specially crafted requests to     the .NET Core or .NET Framework application. The update     addresses the vulnerability by correcting how the .NET     Core or .NET Framework web application handles web     requests. (CVE-2020-1108)

  - An information disclosure vulnerability exists in the     way that the Windows Graphics Device Interface (GDI)     handles objects in memory, allowing an attacker to     retrieve information from a targeted system. By itself,     the information disclosure does not allow arbitrary code     execution; however, it could allow arbitrary code to be     run if the attacker uses it in combination with another     vulnerability.  (CVE-2020-1141)

  - A denial of service vulnerability exists when Hyper-V on     a Windows Server fails to properly handle specially     crafted network packets.  (CVE-2020-0909)

  - An information disclosure vulnerability exists when the     Windows kernel improperly handles objects in memory. An     attacker who successfully exploited this vulnerability     could obtain information to further compromise the users     system.  (CVE-2020-1072)

  - An information disclosure vulnerability exists when the     Windows Client Server Run-Time Subsystem (CSRSS) fails     to properly handle objects in memory. An attacker who     successfully exploited the vulnerability could obtain     information to further compromise the users system.
    (CVE-2020-1116)

  - An elevation of privilege vulnerability exists when the     Windows Print Spooler service improperly allows     arbitrary writing to the file system. An attacker who     successfully exploited this vulnerability could run     arbitrary code with elevated system privileges. An     attacker could then install programs; view, change, or     delete data; or create new accounts with full user     rights.  (CVE-2020-1048, CVE-2020-1070)

  - A denial of service vulnerability exists when Windows     improperly handles objects in memory. An attacker who     successfully exploited the vulnerability could cause a     target system to stop responding.  (CVE-2020-1076)

  - A remote code execution vulnerability exists when the     Windows Jet Database Engine improperly handles objects     in memory. An attacker who successfully exploited this     vulnerability could execute arbitrary code on a victim     system. An attacker could exploit this vulnerability by     enticing a victim to open a specially crafted file. The     update addresses the vulnerability by correcting the way     the Windows Jet Database Engine handles objects in     memory. (CVE-2020-1051, CVE-2020-1174, CVE-2020-1175,     CVE-2020-1176)

  - An elevation of privilege vulnerability exists when the     Windows fails to properly handle objects in memory. An     attacker who successfully exploited this vulnerability     could run arbitrary code. An attacker could then install     programs; view, change, or delete data; or create new     accounts with full user rights.  (CVE-2020-1079)

  - An elevation of privilege vulnerability exists in     Windows Block Level Backup Engine Service (wbengine)     that allows file deletion in arbitrary locations.
    (CVE-2020-1010)

  - An information disclosure vulnerability exists when the     Windows GDI component improperly discloses the contents     of its memory. An attacker who successfully exploited     the vulnerability could obtain information to further     compromise the users system. There are multiple ways an     attacker could exploit the vulnerability, such as by     convincing a user to open a specially crafted document,     or by convincing a user to visit an untrusted webpage.
    The security update addresses the vulnerability by     correcting how the Windows GDI component handles objects     in memory. (CVE-2020-0963, CVE-2020-1179)

  - A remote code execution vulnerability exists when     Internet Explorer improperly accesses objects in memory.
    The vulnerability could corrupt memory in such a way     that an attacker could execute arbitrary code in the     context of the current user. An attacker who     successfully exploited the vulnerability could gain the     same user rights as the current user.  (CVE-2020-1062,     CVE-2020-1092)

  - An elevation of privilege vulnerability exists in     Windows Installer because of the way Windows Installer     handles certain filesystem operations.  (CVE-2020-1078)

  - A remote code execution vulnerability exists in the way     that the MSHTML engine improperly validates input. An     attacker could execute arbitrary code in the context of     the current user.  (CVE-2020-1064)

  - A remote code execution vulnerability exists in the way     that Microsoft Graphics Components handle objects in     memory. An attacker who successfully exploited the     vulnerability could execute arbitrary code on a target     system.  (CVE-2020-1153)

  - An elevation of privilege vulnerability exists in     Windows when the Windows kernel-mode driver fails to     properly handle objects in memory. An attacker who     successfully exploited this vulnerability could run     arbitrary code in kernel mode. An attacker could then     install programs; view, change, or delete data; or     create new accounts with full user rights.
    (CVE-2020-1054, CVE-2020-1143)

  - A remote code execution vulnerability exists in the way     that Windows handles objects in memory. An attacker who     successfully exploited the vulnerability could execute     arbitrary code with elevated permissions on a target     system.  (CVE-2020-1067)

  - A security feature bypass vulnerability exists in     Microsoft Windows when the Task Scheduler service fails     to properly verify client connections over RPC. An     attacker who successfully exploited this vulnerability     could run arbitrary code as an administrator. An     attacker could then install programs; view, change, or     delete data; or create new accounts with full user     rights.  (CVE-2020-1113)

  - An elevation of privilege vulnerability exists when the     Windows Background Intelligent Transfer Service (BITS)     IIS module improperly handles uploaded content. An     attacker who successfully exploited this vulnerability     could upload restricted file types to an IIS-hosted     folder.  (CVE-2020-1112)

  - An elevation of privilege vulnerability exists when the     Windows Printer Service improperly validates file paths     while loading printer drivers. An authenticated attacker     who successfully exploited this vulnerability could run     arbitrary code with elevated system privileges.
    (CVE-2020-1081)

  - A remote code execution vulnerability exists in the way     that the Microsoft Script Runtime handles objects in     memory. The vulnerability could corrupt memory in such a     way that an attacker could execute arbitrary code in the     context of the current user. An attacker who     successfully exploited the vulnerability could gain the     same user rights as the current user.  (CVE-2020-1061)

  - An elevation of privilege vulnerability exists when     Windows improperly handles errors tied to Remote Access     Common Dialog. An attacker who successfully exploited     the vulnerability could run arbitrary code with elevated     privileges.  (CVE-2020-1071)

  - An elevation of privilege vulnerability exists when the     Windows kernel fails to properly handle objects in     memory. An attacker who successfully exploited this     vulnerability could run arbitrary code in kernel mode.
    An attacker could then install programs; view, change,     or delete data; or create new accounts with full user     rights.  (CVE-2020-1114)

  - An elevation of privilege vulnerability exists when the     Windows Common Log File System (CLFS) driver improperly     handles objects in memory. An attacker who successfully     exploited this vulnerability could run processes in an     elevated context.  (CVE-2020-1154)

  - A remote code execution vulnerability exists in the way     that the VBScript engine handles objects in memory. The     vulnerability could corrupt memory in such a way that an     attacker could execute arbitrary code in the context of     the current user. An attacker who successfully exploited     the vulnerability could gain the same user rights as the     current user.  (CVE-2020-1035, CVE-2020-1058,     CVE-2020-1060, CVE-2020-1093)

KB4556852: Windows Server 2012 May 2020 Security Update

critical Nessus Plugin ID 136508

No dependents found