CVE-2023-29410

7.2 HIGH

📋 TL;DR

This CVE describes an improper input validation vulnerability in Schneider Electric products that allows authenticated attackers to execute malicious payloads via HTTP requests. Successful exploitation grants attackers the same privileges as the vulnerable application on the server. Organizations using affected Schneider Electric products are at risk.

💻 Affected Systems

Products:
  • Schneider Electric products (specific products not detailed in provided references)
Versions: Not specified in provided information
Operating Systems: Not specified
Default Config Vulnerable: ⚠️ Yes
Notes: Requires authenticated access to exploit. Specific affected products and versions would be detailed in the vendor advisory.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete compromise of the affected system with full application-level privileges, potentially leading to data theft, system manipulation, or lateral movement within the network.

🟠

Likely Case

Unauthorized code execution on the vulnerable server, allowing attackers to steal sensitive data, disrupt operations, or establish persistence.

🟢

If Mitigated

Limited impact due to network segmentation, proper authentication controls, and input validation at other layers.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires authenticated access but appears straightforward once authentication is obtained.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not specified in provided information

Vendor Advisory: https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2023-101-02&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2023-101-02.pdf

Restart Required: Yes

Instructions:

1. Review the vendor advisory for specific affected products. 2. Apply the security update provided by Schneider Electric. 3. Restart affected systems as required. 4. Verify the update was successful.

🔧 Temporary Workarounds

Network Segmentation

all

Restrict network access to affected systems to only trusted sources

Input Validation Enhancement

all

Implement additional input validation at network perimeter or application layer

🧯 If You Can't Patch

  • Implement strict network access controls to limit exposure
  • Enhance monitoring for suspicious HTTP requests to affected endpoints

🔍 How to Verify

Check if Vulnerable:

Check system version against vendor advisory and look for unpatched systems

Check Version:

Vendor-specific command (check product documentation)

Verify Fix Applied:

Verify system version matches patched version from vendor advisory

📡 Detection & Monitoring

Log Indicators:

  • Unusual HTTP requests to vulnerable endpoints
  • Authentication logs showing suspicious access patterns

Network Indicators:

  • HTTP traffic to affected systems containing unusual payloads

SIEM Query:

source="affected_system" AND (http_method="POST" OR http_method="GET") AND url_contains="vulnerable_endpoint" AND size>threshold

🔗 References

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