CVE-2019-1229 Dynamics On-Premise Elevation of Privilege Vulnerability

High 8.8 Published 14 Aug 2019 Updated 4 Aug 2024

An attacker with customizer privileges can inject XAML code to gain control of the Web Role, leading to privilege escalation and code execution.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2019-1229?

CVE-2019-1229 is a high-severity code injection vulnerability in Microsoft Dynamics 365, published on 14 Aug 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An elevation of privilege vulnerability exists in Dynamics On-Premise v9. An attacker who successfully exploited the vulnerability could leverage a customizer privilege within Dynamics to gain control of the Web Role hosting the Dynamics installation. To exploit this vulnerability, an attacker needs to have credentials for a user that has permission to author customized business rules in Dynamics, and persist XAML script in a way that causes it to be interpreted as code. The update addresses the vulnerability by restricting XAML activities to a whitelisted set.

Which versions are affected by CVE-2019-1229?

It affects 1 product.

Products include Microsoft Dynamics 365.

How do I fix CVE-2019-1229?

No fix has been published for CVE-2019-1229 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2019-1229 being exploited?

There is no known exploitation of CVE-2019-1229 in the wild and no public exploit code.

All Microsoft Dynamics 365 vulnerabilities

Sources

Also known as GHSA-g2cr-4r55-7gww.