HIGH CVSS 8.8
Published: 2017-11-27

CVE-2017-8038

pivotal_software credhub-release Security Advisory (CVE-2017-8038)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2017-8038 impacting pivotal_software credhub-release. Evaluated with CVSS Base Score of 8.8 (HIGH).

Original NVD Description

Source: NIST NVD
In Cloud Foundry Foundation Credhub-release version 1.1.0, access control lists (ACLs) enforce whether an authenticated user can perform an operation on a credential. For installations using ACLs, the ACL was bypassed for the CredHub interpolate endpoint, allowing authenticated applications to view any credential within the CredHub installation.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
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
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 pivotal_software / credhub-release
Affected Versions 1.1.0
Weakness Enumeration NVD-CWE-noinfo

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-2017-8038 impacting pivotal_software credhub-release.

⚡ Nuclei Detection Template (YAML) cve-2017-8038.yaml
id: cve-2017-8038

info:
  name: pivotal_software credhub-release - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2017-8038 affecting pivotal_software credhub-release.
    Evaluation: In Cloud Foundry Foundation Credhub-release version 1.1.0, access control lists (ACLs) enforce whether an authenticated user can perform an operation ...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2017-8038
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 8.8
    cve-id: CVE-2017-8038
    cwe-id: NVD-CWE-noinfo
  tags: cve,cve-2017-8038,pivotal_software,credhub-release,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "credhub-release"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2017-8038.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2017-8038
# Target: pivotal_software credhub-release | 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-2017-8038 (pivotal_software credhub-release)...")
    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 pivotal_software credhub-release scope (1.1.0).")
        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-2017-8038.sh
# Recommended Remediation & Patching Commands for CVE-2017-8038
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install credhub-release 2>/dev/null || \
sudo dnf upgrade credhub-release 2>/dev/null || \
sudo yum update credhub-release

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

# 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
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Distributions
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❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2017-8038 in pivotal_software credhub-release?

Review vendor-specific security notices and update pivotal_software credhub-release 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-2017-8038?

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-2017-8038?

CVE-2017-8038 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-2017-8038
Weakness NVD-CWE-noinfo
Vendor pivotal_software
Product credhub-release
Published 2017-11-27
Vector CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H