Nginx Proxy Manager through 2.16.0 lacks rate-limiting on authentication endpoints, allowing unauthenticated attackers to make unlimited password guesses against any account. Attackers can brute-force login credentials via POST /api/tokens and subsequently guess TOTP codes via POST /api/tokens/2fa to gain full session access and administrative control.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Nginxproxymanager Nginx_Proxy_Manager
cpe:2.3:a:nginxproxymanager:nginx_proxy_manager:*:*:*:*:*:*:*:*
|
— |
<= 2.16.0
|
References 6
https://github.com/NginxProxyManager/nginx-proxy-manager/pull/5908
NVD
https://github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/a…
NVD
https://github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/i…
NVD
https://github.com/NginxProxyManager/nginx-proxy-manager/blob/v2.16.0/backend/i…
NVD
https://github.com/NginxProxyManager/nginx-proxy-manager
NVD
https://www.vulncheck.com/advisories/nginx-proxy-manager-through-2.16.0-missing…
VulnCheck Advisory: Nginx Proxy Manager through 2.16.0 Missing Brute-Force Protection