CVE-2026-14903

Executive Summary

CVE-2026-14903 is a path traversal vulnerability in Ivanti Xtraction, a business intelligence and reporting platform. An authenticated remote attacker can exploit this flaw to read arbitrary files outside the web root, potentially exposing sensitive configuration files, credentials, or other proprietary data. The vulnerability exists in versions prior to 2026.2.1. With a CVSS score of 7.7 (High), this issue poses a significant risk to confidentiality, though it requires authentication. No public proof-of-concept (PoC) or exploit code has been released at this time, and the EPSS score is 0.0%, indicating low exploitation activity in the wild. Immediate patching is recommended.

CVSS Breakdown & Threat Level

• CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
• Base Score: 7.7 (High)
• Attack Vector: Network (AV:N)
• Attack Complexity: Low (AC:L)
• Privileges Required: Low (PR:L) – attacker must be authenticated
• User Interaction: None (UI:N)
• Scope: Unchanged (S:U)
• Confidentiality Impact: High (C:H)
• Integrity Impact: None (I:N)
• Availability Impact: None (A:N)

The threat level is High due to the potential for sensitive data exfiltration. While authentication is required, the low complexity and network-based attack vector make it a viable target for insider threats or attackers with compromised credentials.

Deep Dive & Mechanics

The vulnerability resides in the file handling logic of Ivanti Xtraction. The application fails to properly sanitize user-supplied input when constructing file paths for reading resources. By injecting path traversal sequences (e.g., ../), an authenticated attacker can escape the intended web root directory and access arbitrary files on the server's filesystem.

Root Cause: The application uses user-controlled parameters (likely in HTTP requests) to specify file paths without adequate validation or canonicalization. This allows an attacker to traverse directories and read files such as /etc/passwd, application configuration files, or database credentials.

Attack Flow:

1. Attacker authenticates to the Ivanti Xtraction web interface.
2. Attacker crafts a malicious request with a path traversal payload in a file-related parameter (e.g., ?file=../../../../etc/passwd).
3. The server processes the request and returns the contents of the targeted file.
4. Attacker exfiltrates sensitive data.

Vulnerable vs. Patched Code

Vulnerable Code (Conceptual):

# Vulnerable: Directly uses user input without sanitization
def read_file(file_path):
    base_dir = "/var/www/xtraction/files/"
    full_path = base_dir + file_path
    with open(full_path, 'r') as f:
        return f.read()

Patched Code (Conceptual):

# Patched: Validates and canonicalizes the path
import os

def read_file(file_path):
    base_dir = "/var/www/xtraction/files/"
    # Resolve the absolute path and ensure it starts with base_dir
    full_path = os.path.realpath(os.path.join(base_dir, file_path))
    if not full_path.startswith(os.path.realpath(base_dir)):
        raise PermissionError("Access denied")
    with open(full_path, 'r') as f:
        return f.read()

The patched version uses os.path.realpath() to resolve any path traversal sequences and then verifies that the resolved path is within the allowed base directory.

Exploitation & Lab Setup

Red Team (Offensive)

Prerequisites:

• Valid credentials for an Ivanti Xtraction account.
• Network access to the Ivanti Xtraction web interface.

Exploitation Steps:

1. Log in to the Ivanti Xtraction application.
2. Identify a file retrieval endpoint (e.g., /download?file=... or /view?file=...).
3. Craft a request with path traversal:

   GET /download?file=../../../../etc/passwd HTTP/1.1
   Host: target-ivanti-xtraction.com
   Cookie: session=valid_session_cookie
   

4. Observe the response containing the contents of /etc/passwd.
5. Iterate to access other sensitive files (e.g., /var/www/xtraction/config/database.yml).

Lab Setup:

• Deploy a vulnerable Ivanti Xtraction instance (version < 2026.2.1) in a controlled environment.
• Use a tool like Burp Suite or curl to send crafted requests.
• Monitor server logs for file access patterns.

Blue Team (Defensive)

Detection:

• Monitor web server logs for requests containing ../ or ..\\ sequences.
• Alert on attempts to access files outside the web root (e.g., /etc/passwd, /proc/self/environ).
• Use a Web Application Firewall (WAF) to block path traversal patterns.

Hunting:

• Search for anomalous file read operations in application logs.
• Correlate authentication events with subsequent file access anomalies.
• Review recent access to configuration files or system files.

Indicators of Compromise (IOCs)

• File Paths Accessed:
  • /etc/passwd
  • /etc/shadow
  • /var/www/xtraction/config/database.yml
  • /proc/self/environ
  • /var/log/xtraction/application.log
• HTTP Request Patterns:
  • GET /download?file=../../../../etc/passwd
  • GET /view?file=..%2f..%2f..%2f..%2fetc%2fpasswd (URL-encoded)
• Network Indicators:
  • Outbound connections from the Ivanti server to unknown IPs (data exfiltration).
• Log Entries:
  • ERROR: File not found: /var/www/xtraction/files/../../../../etc/passwd (if error logging is verbose).

Detection Engineering

YARA Rule

rule CVE_2026_14903_Path_Traversal {
    meta:
        description = "Detects path traversal attempts targeting Ivanti Xtraction"
        author = "Valters IT"
        date = "2025-04-10"
        cve = "CVE-2026-14903"
    strings:
        $traversal1 = "../"
        $traversal2 = "..\\"
        $traversal3 = "%2e%2e%2f"
        $traversal4 = "%2e%2e%5c"
        $sensitive1 = "/etc/passwd"
        $sensitive2 = "/etc/shadow"
        $sensitive3 = "database.yml"
    condition:
        any of ($traversal*) and any of ($sensitive*)
}

Sigma Rule

title: CVE-2026-14903 Path Traversal in Ivanti Xtraction
id: 8a9b3c4d-5e6f-7a8b-9c0d-1e2f3a4b5c6d
status: experimental
description: Detects path traversal attempts in Ivanti Xtraction web requests
author: Valters IT
logsource:
    category: webserver
    product: apache
    service: access_log
detection:
    selection:
        cs-uri-query|contains:
            - '../'
            - '..\\'
            - '%2e%2e%2f'
            - '%2e%2e%5c'
        cs-uri-query|contains:
            - '/etc/passwd'
            - '/etc/shadow'
            - 'database.yml'
    condition: selection
falsepositives:
    - Legitimate use of relative paths in some applications
level: high

Suricata Rule

alert http any any -> any any (msg:"CVE-2026-14903 Path Traversal in Ivanti Xtraction"; flow:to_server,established; content:"../"; http_uri; nocase; content:"/etc/passwd"; http_uri; nocase; sid:1000001; rev:1;)

Remediation & Mitigation

Immediate Actions:

1. Patch: Upgrade Ivanti Xtraction to version 2026.2.1 or later.
2. Workaround: If patching is not immediately possible, restrict access to the vulnerable endpoints using a WAF or reverse proxy to block path traversal patterns.
3. Access Control: Review and revoke unnecessary user accounts. Enforce least privilege.

Long-Term Measures:

• Implement input validation and canonicalization for all file-related parameters.
• Conduct regular security audits and penetration testing.
• Monitor for unusual file access patterns and anomalous authentication events.

Valters IT Signature This report was generated by Valters IT DevSecOps AI. For questions, contact security@valters-it.com.