Description
Cryptomator encrypts data being stored on cloud infrastructure. Prior to version 1.19.1, an integrity check vulnerability allows an attacker to tamper with the vault configuration file leading to a man-in-the-middle vulnerability in Hub key loading mechanism. Before this fix, the client trusted endpoints from the vault config without host authenticity checks, which could allow token exfiltration by mixing a legitimate auth endpoint with a malicious API endpoint. Impacted are users unlocking Hub-backed vaults with affected client versions in environments where an attacker can alter the vault.cryptomator file. This issue has been patched in version 1.19.1.
Problem types
CWE-346: Origin Validation Error
CWE-354: Improper Validation of Integrity Check Value
CWE-451: User Interface (UI) Misrepresentation of Critical Information
CWE-923: Improper Restriction of Communication Channel to Intended Endpoints
Product status
References
github.com/...omator/security/advisories/GHSA-34rf-rwr3-7g43
github.com/cryptomator/cryptomator/pull/4179
github.com/...ommit/6b82abcd80449a30b561d823193f9ecea542a625
github.com/cryptomator/cryptomator/releases/tag/1.19.1