Source
Microsoft Security Response Center
**According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?** In this case, a successful attack could be performed from a low privilege AppContainer. The attacker could elevate their privileges and execute code or access resources at a higher integrity level than that of the AppContainer execution environment.
**What privileges could be gained by an attacker who successfully exploited this vulnerability?** An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
**What privileges could be gained by an attacker who successfully exploited this vulnerability?** An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
**What privileges could be gained by an attacker who successfully exploited this vulnerability?** An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
**What privileges could be gained by an attacker who successfully exploited this vulnerability?** An attacker who successfully exploited this vulnerability could gain SYSTEM 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 win a race condition.
**What privileges could be gained by an attacker who successfully exploited this vulnerability?** An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
**How could an attacker exploit this vulnerability?** The authenticated attacker could take advantage of this vulnerability to execute malicious code through the RPC runtime.
**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 set to disabled, select one of the following options to either disable the Print Spooler service, or to Disable inbound remote printing through Group Policy: **Option 1 - Disable the Print Spooler service** If disabling the Print Spooler service is appropriate for your enterprise, use the following PowerShell commands: Stop-Service -Name Spooler -Force Set-Service -Name Spooler -StartupType Disabled **Impact of workaround** Disabling the Print Spooler service disables the ability to print both locally and remotely. **Option 2 - Disable inbound remote printing through Group Policy** You can also configure the settings via Group Policy as follows: Computer Configuration / Administrative Templates / Printers Disable the “Allow Print Spooler to accept client connections:” policy to block remote attacks....
**What type of information could be disclosed by this vulnerability?** An attacker who successfully exploited this vulnerability could potentially read small portions of heap memory.