HIGH CVSS 8.8
Published: 2017-04-06

CVE-2017-4964

cloudfoundry bosh_azure_cpi Security Advisory (CVE-2017-4964)
↗ Official NIST NVD Record
Seeking technical exploit breakdowns or verified PoC code for CVE-2017-4964?
🔬 Search Writeups & Exploit Archive →

CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2017-4964 impacting cloudfoundry bosh_azure_cpi. Evaluated with CVSS Base Score of 8.8 (HIGH).

Original NVD Description

Source: NIST NVD
Cloud Foundry Foundation BOSH Azure CPI v22 could potentially allow a maliciously crafted stemcell to execute arbitrary code on VMs created by the director, aka a "CPI code injection vulnerability."

📊 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
None (UI:N)
Zero human interaction required
Scope
Changed (S:C)
Impacts components beyond caller authority
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 cloudfoundry / bosh_azure_cpi
Affected Versions 22
Weakness Enumeration CWE-94

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-2017-4964 impacting cloudfoundry bosh_azure_cpi.

⚡ Nuclei Detection Template (YAML) cve-2017-4964.yaml
id: cve-2017-4964

info:
  name: cloudfoundry bosh_azure_cpi - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2017-4964 affecting cloudfoundry bosh_azure_cpi.
    Evaluation: Cloud Foundry Foundation BOSH Azure CPI v22 could potentially allow a maliciously crafted stemcell to execute arbitrary code on VMs created by the dir...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2017-4964
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
    cvss-score: 8.8
    cve-id: CVE-2017-4964
    cwe-id: CWE-94
  tags: cve,cve-2017-4964,cloudfoundry,bosh_azure_cpi,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "bosh_azure_cpi"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2017-4964.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2017-4964
# Target: cloudfoundry bosh_azure_cpi | CVSS: 8.8 (HIGH)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2017-4964 (cloudfoundry bosh_azure_cpi)...")
    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 cloudfoundry bosh_azure_cpi scope (22).")
        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-2017-4964.sh
# Recommended Remediation & Patching Commands for CVE-2017-4964
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install bosh_azure_cpi 2>/dev/null || \
sudo dnf upgrade bosh_azure_cpi 2>/dev/null || \
sudo yum update bosh_azure_cpi

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

# 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.

🔗 Verified Technical References

Authorities
  • No records filed in this category.
Distributions
  • No records filed in this category.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2017-4964 in cloudfoundry bosh_azure_cpi?

Review vendor-specific security notices and update cloudfoundry bosh_azure_cpi 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-2017-4964?

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-2017-4964?

CVE-2017-4964 is classified with a CVSS 3.1 Base Score of 8.8 (HIGH). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
8.8
HIGH SEVERITY
CVE ID CVE-2017-4964
Weakness CWE-94
Vendor cloudfoundry
Product bosh_azure_cpi
Published 2017-04-06
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H