MEDIUM CVSS 5.7
Published: 2022-08-12

CVE-2022-37043

zimbra collaboration Security Advisory (CVE-2022-37043)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2022-37043 impacting zimbra collaboration. Evaluated with CVSS Base Score of 5.7 (MEDIUM).

Original NVD Description

Source: NIST NVD
An issue was discovered in the webmail component in Zimbra Collaboration Suite (ZCS) 8.8.15 and 9.0. When using preauth, CSRF tokens are not checked on some POST endpoints. Thus, when an authenticated user views an attacker-controlled page, a request will be sent to the application that appears to be intended. The CSRF token is omitted from the request, but the request still succeeds.

📊 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
Required (UI:R)
User must click or open resource
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
None (C:N)
No data confidentiality impact
Integrity
High (I:H)
Total modification of target system
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product zimbra / collaboration
Affected Versions 8.8.15
Weakness Enumeration CWE-352

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-2022-37043 impacting zimbra collaboration.

⚡ Nuclei Detection Template (YAML) cve-2022-37043.yaml
id: cve-2022-37043

info:
  name: zimbra collaboration - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2022-37043 affecting zimbra collaboration.
    Evaluation: An issue was discovered in the webmail component in Zimbra Collaboration Suite (ZCS) 8.8.15 and 9.0. When using preauth, CSRF tokens are not checked o...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2022-37043
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
    cvss-score: 5.7
    cve-id: CVE-2022-37043
    cwe-id: CWE-352
  tags: cve,cve-2022-37043,zimbra,collaboration,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "collaboration"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2022-37043.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2022-37043
# Target: zimbra collaboration | CVSS: 5.7 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2022-37043 (zimbra collaboration)...")
    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 zimbra collaboration scope (8.8.15).")
        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-2022-37043.sh
# Recommended Remediation & Patching Commands for CVE-2022-37043
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install collaboration 2>/dev/null || \
sudo dnf upgrade collaboration 2>/dev/null || \
sudo yum update collaboration

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

# 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-2022-37043 in zimbra collaboration?

Review vendor-specific security notices and update zimbra collaboration 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-2022-37043?

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-2022-37043?

CVE-2022-37043 is classified with a CVSS 3.1 Base Score of 5.7 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
5.7
MEDIUM SEVERITY
CVE ID CVE-2022-37043
Weakness CWE-352
Vendor zimbra
Product collaboration
Published 2022-08-12
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N