Microsoft Security Response Center

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

**In what scenarios can the security feature be bypassed?** On machines with slow or older USB controller hardware, the Group policy might have (silently) failed to apply. On such machines, the attacker can trivially exploit this enforcement failure by attaching a USB storage device to the affected machine.

**How could an attacker exploit this vulnerability?** This vulnerability is subject to a local escalation of privilege attack. The attacker would most likely arrange to run an executable or script on the local computer. An attacker could gain access to the computer through a variety of methods, such as via a phishing attack where a user clicks an executable file that is attached to an email.

**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.

**According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?** The attacker must inject themselves into the logical network path between the target and the resource requested by the victim to read or modify network communications. This is called a man-in-the-middle (MITM) attack.

**How could an attacker exploit this vulnerability?** An attacker could exploit the vulnerability by tricking an authenticated user into attempting to connect to a malicious SQL server via OLEDB, which could result in the server receiving a malicious networking packet. This could allow the attacker to execute code remotely on the client.

**How could an attacker exploit this vulnerability?** An attacker could exploit the vulnerability by tricking an authenticated user into attempting to connect to a malicious SQL server via OLEDB, which could result in the server receiving a malicious networking packet. This could allow the attacker to execute code remotely on the client.

**According to the CVSS metric, availability is low (A:L). How could an attacker impact the availability?** The performance can be interrupted and/or reduced, but the attacker cannot fully deny service.

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