#auth

**How could an attacker exploit this vulnerability?** To exploit this vulnerability, a victim machine must be running a performance counter collection tool such as Performance Monitor to collect performance counter data from an attacker machine. An attacker with local admin authority on the attacker machine could run malicious code remotely in the victim machine's performance counter data collector process.

**According to the CVSS metric, privileges required is low (PR:H). What does that mean for this vulnerability?** An authenticated attacker with Site Owner permissions can use the vulnerability to inject arbitrary code and execute this code in the context of SharePoint Server.

**How would an attacker exploit this vulnerability?** An unauthenticated attacker could connect to the Remote Desktop Licensing Service and send a malicious message which could allow remote code execution.

**How could an attacker exploit this vulnerability?** An authenticated attacker could exploit the vulnerability by uploading a malicious TIFF file to a server.

**How could an attacker exploit the vulnerability?** An authenticated attacker with Site Owner permissions or higher could upload a specially crafted file to the targeted SharePoint Server and craft specialized API requests to trigger deserialization of file's parameters. This would enable the attacker to perform remote code execution in the context of the SharePoint Server.

**According to the CVSS metric, user interaction is required (UI:R) and privileges required are none (PR:N). What does that mean for this vulnerability?** An unauthorized attacker must wait for a user to initiate a connection.

**How could an attacker exploit this vulnerability?** An attacker could exploit the vulnerability by tricking an authenticated user (UI:R) into attempting to connect to a malicious SQL server database via a connection driver (for example: OLE DB or OLEDB as applicable). This could result in the database returning malicious data that could cause arbitrary code execution on the client.

**According to the CVSS metric, the attack vector is adjacent (AV:A). What does that mean for this vulnerability?** An unauthenticated attacker with LAN access could exploit this vulnerability.

**According to the CVSS metric, the attack vector is adjacent (AV:A). What does that mean for this vulnerability?** An unauthenticated attacker with LAN access could exploit this vulnerability.

Cybersecurity agencies from Australia, Canada, Germany, Japan, New Zealand, South Korea, the U.K., and the U.S. have released a joint advisory about a China-linked cyber espionage group called APT40, warning about its ability to co-opt exploits for newly disclosed security flaws within hours or days of public release. "APT 40 has previously targeted organizations in various countries, including