CVE-2024-48646

8.1 HIGH

📋 TL;DR

Sage 1000 v7.0.0 contains an unrestricted file upload vulnerability that allows authorized users to upload malicious files without proper validation. Attackers could upload HTML, scripts, or executable content that may execute on the server, potentially leading to system compromise. This affects organizations using Sage 1000 v7.0.0 with authorized user accounts.

💻 Affected Systems

Products:
  • Sage 1000
Versions: v7.0.0
Operating Systems: Windows Server (assumed based on typical Sage deployments)
Default Config Vulnerable: ⚠️ Yes
Notes: Requires authorized user access. The vulnerability exists in the file upload functionality without proper validation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full server compromise leading to data theft, ransomware deployment, or complete system takeover through remote code execution.

🟠

Likely Case

Web shell installation allowing persistent access, data exfiltration, and lateral movement within the network.

🟢

If Mitigated

Limited impact through file uploads that don't execute, potentially causing denial of service or storage consumption.

🌐 Internet-Facing: HIGH if the application is internet-accessible, as attackers could exploit authorized user credentials or session hijacking.
🏢 Internal Only: HIGH as authorized users (including compromised accounts) can exploit this from within the network.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Public exploit code is available on GitHub. Exploitation requires authorized user credentials but is technically simple once access is obtained.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: Unknown

Restart Required: No

Instructions:

Check with Sage vendor for security updates. If unavailable, upgrade to a supported version or implement workarounds.

🔧 Temporary Workarounds

Implement File Upload Validation

all

Add server-side validation to restrict file uploads to specific extensions and scan for malicious content.

Web Application Firewall Rules

all

Configure WAF to block file uploads with dangerous extensions (.php, .asp, .jsp, .html, .exe, etc.)

🧯 If You Can't Patch

  • Restrict file upload permissions to minimal necessary users and monitor their activity closely.
  • Implement network segmentation to isolate Sage 1000 servers from critical systems and limit lateral movement potential.

🔍 How to Verify

Check if Vulnerable:

Test if the application allows uploading files with dangerous extensions (.php, .asp, .html, .exe) without validation. Check version against v7.0.0.

Check Version:

Check application version through admin interface or consult system documentation.

Verify Fix Applied:

Attempt to upload malicious file types and verify they are rejected with proper error messages. Verify file content scanning is implemented.

📡 Detection & Monitoring

Log Indicators:

  • Unusual file uploads with suspicious extensions
  • Multiple upload attempts from single user
  • Uploads to non-standard directories

Network Indicators:

  • HTTP POST requests with file uploads to Sage endpoints
  • Unusual outbound connections from Sage server post-upload

SIEM Query:

source="sage_logs" AND (event="file_upload" AND (file_extension="php" OR file_extension="asp" OR file_extension="jsp" OR file_extension="exe"))

🔗 References

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