Microsoft Security Response Center

**According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?** Any authenticated user could trigger this vulnerability. It does not require admin or other elevated privileges.

**What privileges could an attacker gain?** An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

**Determine if the Print Spooler service is running** Run the following in Windows PowerShell: Get-Service -Name Spooler If the Print Spooler is running or if the service is not disabled, follow these steps: **Stop and disable the Print Spooler service** If stopping and disabling the Print Spooler service is appropriate for your environment, run the following in Windows PowerShell: Stop-Service -Name Spooler -Force Set-Service -Name Spooler -StartupType Disabled **Impact of workaround** Stopping and disabling the Print Spooler service disables the ability to print both locally and remotely.

**What type of information could be disclosed by this vulnerability?** The type of information that could be disclosed if an attacker successfully exploited this vulnerability is the contents of Kernel memory. An attacker could read the contents of Kernel memory from a user mode process.

**What type of privileges could an attacker gain through this vulnerability?** A domain user could use this vulnerability to elevate privileges to SYSTEM assigned integrity level.

**What privileges could an attacker gain?** An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.

**How could an attacker exploit this vulnerability?** An authenticated user could manipulate attributes on computer accounts they own or manage, and acquire a certificate from Active Directory Certificate Services that would allow elevation of privilege to System.

**According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?** The word **Remote** in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. For example, when the score indicates that the **Attack Vector** is **Local** and **User Interaction** is **Required**, this could describe an exploit in which an attacker, through social engineering, convinces a victim to download and open a specially crafted file from a website which leads to a local attack on their computer.

**According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?** Any authenticated user could trigger this vulnerability. It does not require admin or other elevated privileges.

**According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?** Successful exploitation of this vulnerability requires an attacker to take additional actions prior to exploitation to prepare the target environment.