CVE-2025-14716

Executive Summary

CVE-2025-14716 is an Improper Authentication vulnerability in Secomea GateManager, specifically within its webserver modules. This flaw allows an unauthenticated attacker to bypass authentication mechanisms, potentially gaining unauthorized access to the GateManager web interface. The vulnerability affects GateManager version 11.4.0. With a CVSS score of 6.5 (Medium), the attack vector is network-based, requires low complexity, and no privileges or user interaction. The impact is limited to confidentiality and integrity, with no availability impact. No public exploit code or proof-of-concept is currently available, and the patch status remains unknown.

CVSS Breakdown & Threat Level

• CVSS Score: 6.5 (Medium)
• Attack Vector: Network (AV:N)
• Attack Complexity: Low (AC:L)
• Privileges Required: None (PR:N)
• User Interaction: None (UI:N)
• Scope: Unchanged (S:U)
• Confidentiality Impact: Low (C:L)
• Integrity Impact: Low (I:L)
• Availability Impact: None (A:N)

The threat level is considered medium due to the ease of exploitation and potential for unauthorized access, but the limited impact on confidentiality and integrity reduces the overall severity.

Deep Dive & Mechanics

The vulnerability resides in the webserver modules of Secomea GateManager. Improper authentication handling allows an attacker to bypass the login process and access restricted resources. The exact mechanism is not publicly disclosed, but it likely involves manipulating authentication tokens, session cookies, or HTTP headers to trick the server into granting access without valid credentials. This could be achieved through techniques such as session fixation, cookie manipulation, or exploiting weak authentication logic.

Vulnerable vs. Patched Code

No patched version or code diff is available. The vulnerable code is in the webserver authentication module of GateManager 11.4.0. A patch would likely involve strengthening authentication checks, validating session tokens, and ensuring proper access control enforcement.

Exploitation & Lab Setup

Red Team

Since no public exploit code exists, a red team would need to perform manual testing. A typical approach would involve:

1. Reconnaissance: Identify GateManager instances using Shodan dorks or network scanning.
2. Authentication Bypass Testing: Attempt to access protected endpoints without authentication, manipulate cookies (e.g., setting admin=true), or use default credentials.
3. Session Manipulation: Try to reuse or forge session tokens.

Example of a simple curl command to test for bypass:

curl -v http://target-gatemanager:port/admin --cookie "session=admin"

Blue Team

Blue teams should monitor for unusual access patterns, such as:

• Requests to administrative endpoints without prior login.
• Multiple failed login attempts followed by successful access.
• Anomalous session token values or cookie manipulation.

Indicators of Compromise (IOCs)

• Network: Unauthorized HTTP requests to /admin, /config, or other restricted paths.
• Logs: Access logs showing successful authentication without corresponding login events.
• Session: Suspicious session tokens or cookies with predictable patterns.

Detection Engineering

YARA Rule

rule CVE_2025_14716_GateManager_AuthBypass {
    meta:
        description = "Detects potential authentication bypass attempts against Secomea GateManager"
        author = "Valters IT"
        date = "2025-04-10"
        reference = "CVE-2025-14716"
    strings:
        $s1 = "GET /admin" ascii nocase
        $s2 = "HTTP/1.1 200" ascii
        $s3 = "session=" ascii
    condition:
        all of them
}

Sigma Rule

title: Secomea GateManager Authentication Bypass Attempt
id: 8a9b7c6d-5e4f-3a2b-1c0d-9e8f7a6b5c4d
status: experimental
description: Detects attempts to bypass authentication on Secomea GateManager
author: Valters IT
logsource:
    category: webserver
    product: apache
detection:
    selection:
        cs-method: 'GET'
        cs-uri-stem:
            - '/admin'
            - '/config'
            - '/management'
        sc-status: 200
    condition: selection
falsepositives:
    - Legitimate admin access
level: medium

Suricata Rule

alert http any any -> any any (msg:"CVE-2025-14716 Secomea GateManager Auth Bypass Attempt"; flow:to_server; content:"GET"; http_method; content:"/admin"; http_uri; sid:1000001; rev:1;)

Remediation & Mitigation

1. Immediate: Restrict network access to GateManager web interface using firewall rules or VPN.
2. Short-term: Monitor logs for unauthorized access attempts and implement additional authentication layers (e.g., multi-factor authentication).
3. Long-term: Apply patches from Secomea when available. Consider upgrading to a non-vulnerable version if released.
4. Compensating Controls: Use Web Application Firewall (WAF) rules to block suspicious requests to administrative endpoints.

Valters IT