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CVE-2023-39520

5.5 · MEDIUM

Cryptomator encrypts data being stored on cloud infrastructure.

Published Aug 7, 2023CWE-269EPSS 0.33%

Overview

CVE-2023-39520 is a medium-severity vulnerability. It was published on August 7, 2023 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/cryptomator/cryptomator/commit/727c32ad50c3901a6144a11cf984a3b7ebcf8b2bGitHubgithub.com/cryptomator/cryptomator/releases/download/1.9.2/Cryptomator-1.9.2-x64.msiGitHubgithub.com/cryptomator/cryptomator/releases/tag/1.9.3GitHubgithub.com/cryptomator/cryptomator/security/advisories/GHSA-62gx-54j7-mjh3GitHubgithub.com/cryptomator/cryptomator/commit/727c32ad50c3901a6144a11cf984a3b7ebcf8b2bGitHubgithub.com/cryptomator/cryptomator/releases/download/1.9.2/Cryptomator-1.9.2-x64.msiGitHubgithub.com/cryptomator/cryptomator/releases/tag/1.9.3GitHubgithub.com/cryptomator/cryptomator/security/advisories/GHSA-62gx-54j7-mjh3

How CyberStrike helps

Frequently asked questions

What is CVE-2023-39520?

CVE-2023-39520 is a medium-severity vulnerability. It was published on August 7, 2023 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-39520?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-39520?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-39520?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-39520 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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