CVE-2023-39520

Public Exploit
Cryptomator vulnerable to Local Elevation of Privileges

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Vendor Advisory github.com
Affected: cryptomator cryptomator
Published at:
Updated at:

References

Link Tags
https://github.com/cryptomator/cryptomator/security/advisories/GHSA-62gx-54j7-mjh3 vendor advisory mitigation exploit
https://github.com/cryptomator/cryptomator/commit/727c32ad50c3901a6144a11cf984a3b7ebcf8b2b patch
https://github.com/cryptomator/cryptomator/releases/download/1.9.2/Cryptomator-1.9.2-x64.msi product
https://github.com/cryptomator/cryptomator/releases/tag/1.9.3 release notes

Frequently Asked Questions

What is the severity of CVE-2023-39520?
CVE-2023-39520 has been scored as a medium severity vulnerability.
How to fix CVE-2023-39520?
To fix CVE-2023-39520, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-39520 being actively exploited in the wild?
It is possible that CVE-2023-39520 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-39520?
CVE-2023-39520 affects cryptomator cryptomator.
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