HIGH CVSS 8.1
Published: 2017-10-18

CVE-2017-8022

emc networker Security Advisory (CVE-2017-8022)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2017-8022 impacting emc networker. Evaluated with CVSS Base Score of 8.1 (HIGH).

Original NVD Description

Source: NIST NVD
An issue was discovered in EMC NetWorker (prior to 8.2.4.9, all supported 9.0.x versions, prior to 9.1.1.3, prior to 9.2.0.4). The Server service (nsrd) is affected by a buffer overflow vulnerability. A remote unauthenticated attacker may potentially exploit this vulnerability to execute arbitrary code on vulnerable installations of the software, or cause a denial of service, depending on the target system's platform.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
High (AC:H)
Depends on race conditions or environment
Privileges Required
None (PR:N)
Unauthenticated execution
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 emc / networker
Affected Versions *
Weakness Enumeration CWE-119

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-2017-8022 impacting emc networker.

⚡ Nuclei Detection Template (YAML) cve-2017-8022.yaml
id: cve-2017-8022

info:
  name: emc networker - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2017-8022 affecting emc networker.
    Evaluation: An issue was discovered in EMC NetWorker (prior to 8.2.4.9, all supported 9.0.x versions, prior to 9.1.1.3, prior to 9.2.0.4). The Server service (nsr...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2017-8022
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 8.1
    cve-id: CVE-2017-8022
    cwe-id: CWE-119
  tags: cve,cve-2017-8022,emc,networker,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "networker"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2017-8022.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2017-8022
# Target: emc networker | CVSS: 8.1 (HIGH)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2017-8022 (emc networker)...")
    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 emc networker scope (*).")
        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-2017-8022.sh
# Recommended Remediation & Patching Commands for CVE-2017-8022
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install networker 2>/dev/null || \
sudo dnf upgrade networker 2>/dev/null || \
sudo yum update networker

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

# 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

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2017-8022 in emc networker?

Review vendor-specific security notices and update emc networker 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-2017-8022?

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-2017-8022?

CVE-2017-8022 is classified with a CVSS 3.1 Base Score of 8.1 (HIGH). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
8.1
HIGH SEVERITY
CVE ID CVE-2017-8022
Weakness CWE-119
Vendor emc
Product networker
Published 2017-10-18
Vector CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H