CVE-2023-29414
📋 TL;DR
This vulnerability allows local users to escalate privileges by exploiting a buffer overflow in a local function call. Attackers can send specially crafted string input to gain higher system privileges. Only local authenticated users can exploit this vulnerability.
💻 Affected Systems
- Schneider Electric software/products (specific products not detailed in provided references)
📦 What is this software?
Accutech Manager by Schneider Electric
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with administrative/root privileges achieved by local attacker
Likely Case
Local user gains elevated privileges to access restricted data or perform unauthorized actions
If Mitigated
Attack fails due to proper input validation or privilege separation
🎯 Exploit Status
Requires local access and knowledge of vulnerable function. Buffer overflow exploitation requires specific string input.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified - check vendor advisory for specific versions
Vendor Advisory: https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2023-192-03&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2023-192-03.pdf
Restart Required: Yes
Instructions:
1. Review Schneider Electric advisory SEVD-2023-192-03. 2. Identify affected products and versions. 3. Apply vendor-provided patches. 4. Restart affected systems/services.
🔧 Temporary Workarounds
Restrict local access
allLimit local user access to systems running vulnerable software
Implement privilege separation
allRun vulnerable software with minimal necessary privileges
🧯 If You Can't Patch
- Implement strict access controls to limit local user privileges
- Monitor for privilege escalation attempts and unusual local activity
🔍 How to Verify
Check if Vulnerable:
Check system for Schneider Electric software versions mentioned in vendor advisoryCheck Version:
Vendor-specific commands - consult product documentationVerify Fix Applied:
Verify patch installation and software version matches fixed version from vendor advisory📡 Detection & Monitoring
Log Indicators:
- Failed privilege escalation attempts
- Unusual local process execution
- Buffer overflow error messages
Network Indicators:
- Local inter-process communication anomalies
SIEM Query:
Process execution with privilege escalation flags OR buffer overflow error messages from Schneider Electric software