Microsoft Security Response Center

**According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?** The user would have to click on a specially crafted URL to be compromised by the attacker.

**According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?** The vulnerability is in the web server, but the malicious scripts execute in the victim’s browser on their machine.

Mitigation refers to a setting, common configuration, or general best-practice, existing in a default state, that could reduce the severity of exploitation of a vulnerability. The following mitigating factors might be helpful in your situation: The Windows message queuing service, which is a Windows component, needs to be enabled for a system to be exploitable by this vulnerability. This feature can be added via the Control Panel. You can check to see if there is a service running named **Message Queuing** and TCP port 1801 is listening on the machine.

**How can I update my Azure Service Connector to the latest version?** Azure Service Connector updates when Azure Command-Line Interface (CLI) is updated to the latest version. If you have automatic updates enabled (not enabled by default), no action is needed. For customers who manually update, please refer to How to update the Azure CLI for instructions on how to update Azure CLI.

**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, user interaction is required (UI:R). What interaction would the user have to do?** A user needs to be tricked into running malicious files.

**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.

The following mitigating factors might be helpful in your situation: This vulnerability is limited to attacker traffic inside the NAT firewall. An enterprise perimeter firewall can be used to mitigate this attack. A NAT firewall works by only allowing requested internet traffic to pass through the gateway. Internet routed network traffic cannot attack the Windows Network Address Translation Service for this vulnerability.