SmartDraw 2020 27.0.0.0 Installer SDNotify.exe privileges management

Summaryinfo

A vulnerability described as critical has been identified in SmartDraw 2020 27.0.0.0. Impacted is an unknown function of the file 2020\Messages\SDNotify.exe of the component Installer. The manipulation results in privileges management. This vulnerability is reported as CVE-2020-13386. The attack requires a local approach. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, was found in SmartDraw 2020 27.0.0.0. Affected is an unknown code block of the file 2020\Messages\SDNotify.exe of the component Installer. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In SmartDraw 2020 27.0.0.0, the installer gives inherited write permissions to the Authenticated Users group on the SmartDraw 2020 installation folder. Additionally, when the product is installed, two scheduled tasks are created on the machine, SDMsgUpdate (Local) and SDMsgUpdate (TE). The scheduled tasks run in the context of the user who installed the product. Both scheduled tasks attempt to run the same binary, C:\SmartDraw 2020\Messages\SDNotify.exe. The folder Messages doesn't exist by default and (by extension) neither does SDNotify.exe. Due to the weak folder permissions, these can be created by any user. A malicious actor can therefore create a malicious SDNotify.exe binary, and have it automatically run, whenever the user who installed the product logs on to the machine. The malicious SDNotify.exe could, for example, create a new local administrator account on the machine.

The weakness was disclosed 05/27/2020. This vulnerability is traded as CVE-2020-13386 since 05/22/2020. Local access is required to approach this attack. The requirement for exploitation is a authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

• SmartDraw 2020

Version

• 27.0.0.0

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CPE 2.2info

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