HIGH CVSS 7.8
Published: 2021-05-05

CVE-2021-29100

esri arcgis_earth Security Advisory (CVE-2021-29100)
↗ Official NIST NVD Record
Seeking technical exploit breakdowns or verified PoC code for CVE-2021-29100?
🔬 Search Writeups & Exploit Archive →

CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2021-29100 impacting esri arcgis_earth. Evaluated with CVSS Base Score of 7.8 (HIGH).

Original NVD Description

Source: NIST NVD
A path traversal vulnerability exists in Esri ArcGIS Earth versions 1.11.0 and below which allows arbitrary file creation on an affected system through crafted input. An attacker could exploit this vulnerability to gain arbitrary code execution under security context of the user running ArcGIS Earth by inducing the user to upload a crafted file to an affected system.

📊 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
None (PR:N)
Unauthenticated execution
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 esri / arcgis_earth
Affected Versions *
Weakness Enumeration CWE-23

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-2021-29100 impacting esri arcgis_earth.

⚡ Nuclei Detection Template (YAML) cve-2021-29100.yaml
id: cve-2021-29100

info:
  name: esri arcgis_earth - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: high
  description: |
    Automated signature & scanner for CVE-2021-29100 affecting esri arcgis_earth.
    Evaluation: A path traversal vulnerability exists in Esri ArcGIS Earth versions 1.11.0 and below which allows arbitrary file creation on an affected system throug...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2021-29100
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    cvss-score: 7.8
    cve-id: CVE-2021-29100
    cwe-id: CWE-23
  tags: cve,cve-2021-29100,esri,arcgis_earth,high

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "arcgis_earth"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2021-29100.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2021-29100
# Target: esri arcgis_earth | CVSS: 7.8 (HIGH)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2021-29100 (esri arcgis_earth)...")
    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 esri arcgis_earth 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-2021-29100.sh
# Recommended Remediation & Patching Commands for CVE-2021-29100
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install arcgis_earth 2>/dev/null || \
sudo dnf upgrade arcgis_earth 2>/dev/null || \
sudo yum update arcgis_earth

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

# 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-2021-29100 in esri arcgis_earth?

Review vendor-specific security notices and update esri arcgis_earth 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-2021-29100?

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-2021-29100?

CVE-2021-29100 is classified with a CVSS 3.1 Base Score of 7.8 (HIGH). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
7.8
HIGH SEVERITY
CVE ID CVE-2021-29100
Weakness CWE-23
Vendor esri
Product arcgis_earth
Published 2021-05-05
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H