Arbitrary code execution in desktop client via OpenSSL config (NC-SA-2020-030)
10th July 2020
Risk level: Low
CVSS v3 Base Score: 4.8 (AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L)
HackerOne report: 622170
A code injection in Nextcloud Desktop Client 2.6.4 allowed to load arbitrary code when placing a malicious OpenSSL config into a fixed directory.
- Nextcloud Desktop < 2.6.5 (CVE-2020-8224)
The error has been fixed.
It is recommended that the Nextcloud Desktop Client is upgraded to 2.6.5.
The Nextcloud team thanks the following people for their research and responsible disclosure of the above advisory:
This advisory is licensed CC BY-SA 4.0.