CVE-2021-22915
First published: Fri Jun 11 2021(Updated: )
Nextcloud server before 19.0.11, 20.0.10, 21.0.2 is vulnerable to brute force attacks due to lack of inclusion of IPv6 subnets in rate-limiting considerations. This could potentially result in an attacker bypassing rate-limit controls such as the Nextcloud brute-force protection.
Credit: support@hackerone.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Nextcloud Nextcloud Server | <19.0.11 | |
| Nextcloud Nextcloud Server | >=20.0.0<20.0.10 | |
| Nextcloud Nextcloud Server | >=21.0.0<21.0.2 | |
| Fedoraproject Fedora | =33 | |
| Fedoraproject Fedora | =34 |
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Reference Links
- https://hackerone.com/reports/1154003
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AGXGR6HYGQ6MZXISMJEHCOXRGRFRUFMA/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L6BO6P6MP2MOWA6PZRXX32PLWPXN5O4S/
- https://nextcloud.com/security/advisory/?id=NC-SA-2021-009
- collector/nvd-index
- vendor/nextcloud
- canonical/nextcloud nextcloud server
- version/nextcloud nextcloud server/20.0.0
- version/nextcloud nextcloud server/21.0.0
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/33
- version/fedoraproject fedora/34