Microsoft Security Response Center

**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 gather information specific to the environment of the targeted component.

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

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

**What security feature is bypassed with this vulnerability?** A successful attacker could bypass the BitLocker Device Encryption feature on the system storage device. An attacker with physical access to a powered off system could exploit this vulnerability to gain access to encrypted data.

**What privileges could an attacker gain?** 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.

**Why are there two different impacts in the Security Updates table?** An attacker could potentially exploit this vulnerability to elevate privileges from a client-side application sandbox in earlier Microsoft operating systems. However, mitigation technologies in later Microsoft operating systems make this more difficult. For this reason, this vulnerability has two different impact ratings.

**What type of information could be disclosed by this vulnerability?** An attacker can gain access to uninitialized buffer information.

**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.

**According to the CVSS metrics, Confidentiality, Integrity, and Availability are Low (C:L, I:L, A:L). What would attacker have to do to exploit this vulnerability?** While we cannot rule out the impact to Confidentiality, Integrity, and Availability, the ability to exploit this vulnerability by itself is limited. An attacker can force a bad response to be cached into a regular URL by having multiple occurrences of the same variable in the query string. The impact depends on the business logic of the user application.