title: Authenticated (user role) remote command execution by modifying `nginx` settings (GHSL-2023-269)
description: Nginx-ui is online statistics for Server Indicators​​ Monitor CPU usage, memory usage, load average, and disk usage in real-time. The `Home > Preference` page exposes a small list of nginx settings such as `Nginx Access Log Path` and `Nginx Error Log Path`. However, the API also exposes `test_config_cmd`, `reload_cmd` and `restart_cmd`. While the UI doesn't allow users to modify any of these settings, it is possible to do so by sending a request to the API. This issue may lead to authenticated Remote Code Execution, Privilege Escalation, and Information Disclosure. This issue has been patched in version 2.0.0.beta.9.
problem types: CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
affected:
{
vendor: 0xJacky
product: nginx-ui
versions:
version: < 2.0.0.beta.9, status: affected
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: LOW
baseScore: 7.7
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
version: 3.1
]