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 invest time in repeated exploitation attempts through sending constant or intermittent data.

**How could an attacker exploit this vulnerability?** An authenticated user could run a specially crafted trusted solution package to execute arbitrary SQL commands. From there the attacker could escalate and execute commands as db\_owner within their Dynamics 365 database.

**How could an attacker exploit this vulnerability?** An attacker could exploit the vulnerability by tricking an authenticated user into opening a malicious MDB file in Access via ODBC, which could result in the attacker being able to execute arbitrary code on the victim's machine with the permission level at which Access is running.

**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, privileges required is low (PR:L). What does that mean for this vulnerability?** The attacker must be authenticated and possess the permissions for page creation to be able to exploit this vulnerability.

**How could an attacker exploit this vulnerability?** An authenticated user could run a specially crafted trusted solution package to execute arbitrary SQL commands. From there the attacker could escalate and execute commands as db\_owner within their Dynamics 365 database.

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

**How could an attacker exploit this vulnerability?** An unauthenticated attacker could perform a man-in-the-middle network exploit to downgrade a client's encryption to the RC4-md4 cypher, followed by cracking the user's cypher key. The attacker could then compromise the user's Kerberos session key to elevate privileges.

**How could an attacker exploit this vulnerability?** An unauthenticated attacker could exploit the vulnerability by sending specially crafted network traffic to the TLS server and could cause it to crash.

**According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?** Exploitation of the vulnerability requires that a user to log in to Windows.