CVE-2023-32761
📋 TL;DR
This CSRF vulnerability in Archer Platform allows authenticated attackers to execute arbitrary code via crafted requests. It affects Archer Platform versions before 6.13, specifically those not updated to 6.12.0.6 or 6.13.0. Organizations using vulnerable versions are at risk of remote code execution.
💻 Affected Systems
- Archer Platform
📦 What is this software?
Archer by Archerirm
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining complete control over the Archer Platform instance, potentially leading to data theft, system destruction, or lateral movement within the network.
Likely Case
Unauthorized code execution allowing data exfiltration, privilege escalation, or installation of persistent backdoors within the Archer environment.
If Mitigated
Attack blocked at network perimeter or application firewall level; no successful exploitation occurs.
🎯 Exploit Status
Requires authenticated access and ability to craft CSRF requests; typical CSRF exploitation techniques apply.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.12.0.6 or 6.13.0
Vendor Advisory: https://www.archerirm.community/t5/security-advisories/archer-update-for-multiple-vulnerabilities/ta-p/702362
Restart Required: Yes
Instructions:
1. Download Archer Platform version 6.12.0.6 or 6.13.0 from official sources. 2. Backup current Archer installation and database. 3. Apply the update following Archer's upgrade documentation. 4. Restart Archer services. 5. Verify successful update through Archer admin interface.
🔧 Temporary Workarounds
CSRF Token Implementation
allImplement anti-CSRF tokens in all state-changing requests if custom modifications allow it
SameSite Cookie Attribute
allConfigure session cookies with SameSite=Strict attribute to limit cross-origin requests
🧯 If You Can't Patch
- Implement strict network segmentation to isolate Archer Platform from critical systems
- Deploy web application firewall (WAF) with CSRF protection rules and monitor for exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Check Archer Platform version in admin interface: Navigate to Admin → System Configuration → About. Compare version against affected range.Check Version:
Not applicable - version check performed through Archer web interfaceVerify Fix Applied:
Confirm version shows 6.12.0.6 or 6.13.0 in admin interface; test CSRF protection by attempting to submit state-changing requests without proper tokens.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to Archer endpoints from unexpected referrers
- Multiple failed state-changing requests lacking CSRF tokens
- Unexpected process execution in Archer application logs
Network Indicators:
- HTTP requests with crafted parameters targeting Archer endpoints
- Traffic patterns showing CSRF attack signatures
SIEM Query:
source="archer_logs" AND (http_method="POST" AND NOT csrf_token=*) OR (process_execution AND parent_process="archer")🔗 References
- https://www.archerirm.community/t5/product-advisories/archer-announces-availability-of-archer-release-6-13/ta-p/697821
- https://www.archerirm.community/t5/security-advisories/archer-update-for-multiple-vulnerabilities/ta-p/702362
- https://www.archerirm.community/t5/product-advisories/archer-announces-availability-of-archer-release-6-13/ta-p/697821
- https://www.archerirm.community/t5/security-advisories/archer-update-for-multiple-vulnerabilities/ta-p/702362
