Cryptomator 1.9.2/1.9.3 repair privileges management

Summaryinfo

A vulnerability classified as critical has been found in Cryptomator 1.9.2/1.9.3. Affected by this issue is the function repair. This manipulation causes privileges management. This vulnerability is tracked as CVE-2023-39520. The attack is restricted to local execution. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cryptomator 1.9.2/1.9.3. It has been declared as critical. Affected by this vulnerability is the function repair. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Cryptomator encrypts data being stored on cloud infrastructure. The MSI installer provided on the homepage for Cryptomator version 1.9.2 allows local privilege escalation for low privileged users, via the `repair` function. The problem occurs as the repair function of the MSI is spawning an SYSTEM Powershell without the `-NoProfile` parameter. Therefore the profile of the user starting the repair will be loaded. Version 1.9.3 contains a fix for this issue. Adding a `-NoProfile` to the powershell is a possible workaround.

The weakness was disclosed 08/08/2023 as GHSA-62gx-54j7-mjh3. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2023-39520 since 08/03/2023. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading to version 1.9.3 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 727c32ad50c3901a6144a11cf984a3b7ebcf8b2b is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Name

• Cryptomator

Version

• 1.9.2
• 1.9.3

License

• open-source

Website

• Product: https://github.com/cryptomator/cryptomator/

CPE 2.3info

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CPE 2.2info

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• 🔍

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