Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Nextcloud Server | Fixed in 19.0.11, 20.0.10, 21.0.2 | — |
References
- https://hackerone.com/reports/1154003
- https://nextcloud.com/security/advisory/?id=NC-SA-2021-009
- FEDORA-2021-eac0e52f88 vendor-advisory
- FEDORA-2021-afa7968aeb vendor-advisory