MEDIUM CVSS 5.3
Published: 2022-11-21

CVE-2022-38755

microfocus filr Security Advisory (CVE-2022-38755)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2022-38755 impacting microfocus filr. Evaluated with CVSS Base Score of 5.3 (MEDIUM).

Original NVD Description

Source: NIST NVD
A vulnerability has been identified in Micro Focus Filr in versions prior to 4.3.1.1. The vulnerability could be exploited to allow a remote unauthenticated attacker to enumerate valid users of the system. Remote unauthenticated user enumeration. This issue affects: Micro Focus Filr versions prior to 4.3.1.1.

📊 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
None (PR:N)
Unauthenticated execution
User Interaction
None (UI:N)
Zero human interaction required
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
Low (C:L)
Partial information leakage
Integrity
None (I:N)
No system modification impact
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product microfocus / filr
Affected Versions *
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-2022-38755 impacting microfocus filr.

⚡ Nuclei Detection Template (YAML) cve-2022-38755.yaml
id: cve-2022-38755

info:
  name: microfocus filr - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2022-38755 affecting microfocus filr.
    Evaluation: A vulnerability has been identified in Micro Focus Filr in versions prior to 4.3.1.1. The vulnerability could be exploited to allow a remote unauthent...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2022-38755
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    cvss-score: 5.3
    cve-id: CVE-2022-38755
    cwe-id: NVD-CWE-noinfo
  tags: cve,cve-2022-38755,microfocus,filr,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "filr"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2022-38755.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2022-38755
# Target: microfocus filr | CVSS: 5.3 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2022-38755 (microfocus filr)...")
    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 microfocus filr 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-2022-38755.sh
# Recommended Remediation & Patching Commands for CVE-2022-38755
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install filr 2>/dev/null || \
sudo dnf upgrade filr 2>/dev/null || \
sudo yum update filr

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

# 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-2022-38755 in microfocus filr?

Review vendor-specific security notices and update microfocus filr 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-2022-38755?

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-2022-38755?

CVE-2022-38755 is classified with a CVSS 3.1 Base Score of 5.3 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
5.3
MEDIUM SEVERITY
CVE ID CVE-2022-38755
Weakness NVD-CWE-noinfo
Vendor microfocus
Product filr
Published 2022-11-21
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N