HIGH CVSS 7.3
Published: 2017-04-14

CVE-2016-1713

vtiger vtiger_crm Security Advisory (CVE-2016-1713)
↗ Official NIST NVD Record
Seeking technical exploit breakdowns or verified PoC code for CVE-2016-1713?
🔬 Search Writeups & Exploit Archive →

CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2016-1713 impacting vtiger vtiger_crm. Evaluated with CVSS Base Score of 7.3 (HIGH).

Original NVD Description

Source: NIST NVD
Unrestricted file upload vulnerability in the Settings_Vtiger_CompanyDetailsSave_Action class in modules/Settings/Vtiger/actions/CompanyDetailsSave.php in Vtiger CRM 6.4.0 allows remote authenticated users to execute arbitrary code by uploading a crafted image file with an executable extension, then accessing it via a direct request to the file in test/logo/. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-6000.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Local (AV:L)
Requires local system execution permissions
Attack Complexity
Low (AC:L)
No specialized conditions required
Privileges Required
Low (PR:L)
Standard user access required
User Interaction
Required (UI:R)
User must click or open resource
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
High (C:H)
Total information disclosure
Integrity
High (I:H)
Total modification of target system
Availability
High (A:H)
Total denial of service or shutdown

🎯 Affected Versions Matrix

Affected Product vtiger / vtiger_crm
Affected Versions 6.4.0
Weakness Enumeration CWE-434

Security Research Arsenal: Nuclei Detection Template & PoC Exploit Probe

High-Intent Research Tool

Ready-to-use security scanner signatures, active verification probe skeletons, and remediation playbooks for CVE-2016-1713 impacting vtiger vtiger_crm.

⚡ Nuclei Detection Template (YAML) cve-2016-1713.yaml
id: cve-2016-1713

info:
  name: vtiger vtiger_crm - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2016-1713 affecting vtiger vtiger_crm.
    Evaluation: Unrestricted file upload vulnerability in the Settings_Vtiger_CompanyDetailsSave_Action class in modules/Settings/Vtiger/actions/CompanyDetailsSave.ph...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2016-1713
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
    cvss-score: 7.3
    cve-id: CVE-2016-1713
    cwe-id: CWE-434
  tags: cve,cve-2016-1713,vtiger,vtiger_crm,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "vtiger_crm"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2016-1713.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2016-1713
# Target: vtiger vtiger_crm | CVSS: 7.3 (HIGH)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2016-1713 (vtiger vtiger_crm)...")
    headers = {
        "User-Agent": "CyberVault-Audit-Scanner/2.0",
        "Accept": "*/*"
    }
    try:
        r = requests.get(f"{target_url.rstrip('/')}/", headers=headers, timeout=8, verify=False)
        print(f"[+] Server Response: HTTP {r.status_code} | Server Banner: {r.headers.get('Server', 'Unknown')}")
        if r.status_code < 500:
            print(f"[!] Target reachable. Verify version against vtiger vtiger_crm scope (6.4.0).")
        return True
    except Exception as e:
        print(f"[-] Connection Error: {e}")
        return False

if __name__ == '__main__':
    url = sys.argv[1] if len(sys.argv) > 1 else "http://localhost:8080"
    verify_vulnerability(url)
🛡️ Quick Patch & Remediation Script (Bash) patch_cve-2016-1713.sh
# Recommended Remediation & Patching Commands for CVE-2016-1713
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install vtiger_crm 2>/dev/null || \
sudo dnf upgrade vtiger_crm 2>/dev/null || \
sudo yum update vtiger_crm

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i vtiger_crm 2>/dev/null || rpm -qa | grep -i vtiger_crm

# 3. Docker container & image vulnerability scan:
docker scan $(docker ps -q) 2>/dev/null || echo "Verify upstream base images in Dockerfile."

🛡️ Remediation & Security Action

  • Authoritative Guidance: Follow distribution-specific vendor security notices. Advisory status and package patches vary by distribution release.
  • Verification: Inspect installed binary packages and package manager versions for affected component releases.
  • Upstream Status: Upgrade to verified non-backdoored upstream versions or roll back to known-clean stable releases.
⚠️ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2016-1713 in vtiger vtiger_crm?

Review vendor-specific security notices and update vtiger vtiger_crm packages to the latest patched release immediately. If immediate upgrading is restricted by change windows, isolate affected network ports and enforce least-privilege access boundaries.

Is there an active exploit or public PoC for CVE-2016-1713?

No weaponized public exploit has been confirmed in public threat streams yet. Continuous surveillance is active across GitHub and security feeds.

What is the CVSS 3.1 severity rating and impact for CVE-2016-1713?

CVE-2016-1713 is classified with a CVSS 3.1 Base Score of 7.3 (HIGH). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
7.3
HIGH SEVERITY
CVE ID CVE-2016-1713
Weakness CWE-434
Vendor vtiger
Product vtiger_crm
Published 2017-04-14
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H