Nginx UI is a web user interface for the Nginx web server. From 2.0.0 until 2.5.0, internal/backup/restore.go extracts inner archives before applying the restore_nginx and restore_nginx_ui flags and permits symlinks targeting the live Nginx configuration path. An authenticated user who can create and restore backups can craft a valid backup that places a symlink in the staging tree and then writes a regular file through that link, even when both restore flags are false.
This can persistently inject configuration or cause denial of service when the modified files are later consumed. This issue is fixed in version 2.5.0.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Nginxui Nginx_Ui
cpe:2.3:a:nginxui:nginx_ui:*:*:*:*:*:*:*:*
|
2.0.0
|
2.5.0
|
References 3
https://github.com/0xJacky/nginx-ui/commit/a467ed652591fc0cd1b466a1ec751b493fae…
security-advisories@github.com
https://github.com/0xJacky/nginx-ui/releases/tag/v2.5.0
security-advisories@github.com
https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-p8v3-89rh-jxc7
security-advisories@github.com