CVE-2023-39520
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.33%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.33% probability · 26th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-269
- Affected
- cryptomator/cryptomator
- Source
- security-advisories@github.com
References
- https://github.com/cryptomator/cryptomator/commit/727c32ad50c3901a6144a11cf984a3b7ebcf8b2bPatch
- https://github.com/cryptomator/cryptomator/releases/download/1.9.2/Cryptomator-1.9.2-x64.msiProduct
- https://github.com/cryptomator/cryptomator/releases/tag/1.9.3Release Notes
- https://github.com/cryptomator/cryptomator/security/advisories/GHSA-62gx-54j7-mjh3Exploit, Mitigation, Vendor Advisory
- https://github.com/cryptomator/cryptomator/commit/727c32ad50c3901a6144a11cf984a3b7ebcf8b2bPatch
- https://github.com/cryptomator/cryptomator/releases/download/1.9.2/Cryptomator-1.9.2-x64.msiProduct
- https://github.com/cryptomator/cryptomator/releases/tag/1.9.3Release Notes
- https://github.com/cryptomator/cryptomator/security/advisories/GHSA-62gx-54j7-mjh3Exploit, Mitigation, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.