CVE-2023-42323

8.8 HIGH

📋 TL;DR

This CSRF vulnerability in DouHaocms v3.3 allows attackers to trick authenticated administrators into executing arbitrary code by submitting forged requests. Any DouHaocms v3.3 installation with admin access is affected, potentially leading to complete system compromise.

💻 Affected Systems

Products:
  • DouHaocms
Versions: v3.3
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Requires admin access to exploit via CSRF; default installations are vulnerable.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system takeover with remote code execution, data theft, and persistent backdoor installation.

🟠

Likely Case

Unauthorized administrative actions, configuration changes, or limited code execution within the CMS context.

🟢

If Mitigated

Attack fails due to CSRF tokens or same-origin policy protections.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires tricking an authenticated admin; no public exploit code found in references.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: Not provided in references

Restart Required: No

Instructions:

No official patch available; consider upgrading to a newer version if exists or apply workarounds.

🔧 Temporary Workarounds

Implement CSRF Tokens

all

Add anti-CSRF tokens to all admin forms and validate them server-side.

Manual code modification required in adminAction.class.php and related files

SameSite Cookie Attribute

all

Set SameSite=Strict or Lax on session cookies to prevent cross-site requests.

Set session.cookie_samesite = "Strict" in PHP configuration or .htaccess

🧯 If You Can't Patch

  • Restrict admin access to trusted networks only
  • Implement web application firewall (WAF) rules to block suspicious admin requests

🔍 How to Verify

Check if Vulnerable:

Check if DouHaocms version is 3.3 and review adminAction.class.php for CSRF protection.

Check Version:

Check CMS configuration files or admin panel for version information

Verify Fix Applied:

Test admin forms for presence of CSRF tokens and validate they're checked server-side.

📡 Detection & Monitoring

Log Indicators:

  • Unusual admin actions from unexpected IPs or without referrer headers

Network Indicators:

  • POST requests to admin endpoints without CSRF tokens

SIEM Query:

source="web_logs" AND uri="/admin/*" AND method="POST" AND csrf_token=""

🔗 References

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