CVE-2024-12142

8.6 HIGH

📋 TL;DR

This CVE describes an information exposure vulnerability in Schneider Electric products where unauthorized actors can access restricted web pages, modify content, and cause denial of service. The vulnerability affects Schneider Electric systems with specific web interfaces exposed. Attackers could potentially access sensitive information or disrupt operations.

💻 Affected Systems

Products:
  • Schneider Electric products with vulnerable web interfaces (specific products not detailed in provided reference)
Versions: Not specified in provided information - check vendor advisory for specific versions
Operating Systems: Embedded systems running Schneider Electric web interfaces
Default Config Vulnerable: ⚠️ Yes
Notes: Affects systems with web interfaces enabled. The vulnerability requires access to specific web pages that have restricted functions.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise through information disclosure leading to credential theft, unauthorized configuration changes, and sustained denial of service affecting critical operations.

🟠

Likely Case

Unauthorized access to sensitive configuration data, modification of web interface content, and temporary service disruption.

🟢

If Mitigated

Limited impact with proper network segmentation and access controls preventing external exploitation.

🌐 Internet-Facing: HIGH - Web interfaces exposed to internet are directly vulnerable to exploitation without authentication.
🏢 Internal Only: MEDIUM - Internal attackers could exploit this if they have network access to the vulnerable interface.

🎯 Exploit Status

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

Exploitation requires knowledge of specific web pages and restricted functions. No authentication bypass mentioned.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check vendor advisory SEVD-2025-014-05 for specific patched versions

Vendor Advisory: https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2025-014-05&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2025-014-05.pdf

Restart Required: No

Instructions:

1. Download the security patch from Schneider Electric's website. 2. Apply the patch according to vendor instructions. 3. Verify the patch was successfully applied. 4. Test system functionality.

🔧 Temporary Workarounds

Network Segmentation

all

Isolate affected systems from untrusted networks and restrict access to authorized IPs only

Configure firewall rules to restrict access to vulnerable web interfaces

Access Control Lists

all

Implement strict access controls on web interface

Configure web server ACLs to limit access to specific users/IPs

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate vulnerable systems
  • Deploy web application firewall (WAF) with rules to block exploitation attempts

🔍 How to Verify

Check if Vulnerable:

Check if your Schneider Electric system has web interfaces exposed and compare version against vendor advisory

Check Version:

Check system web interface or management console for firmware/software version

Verify Fix Applied:

Verify patch version installed matches vendor recommendation and test restricted web page access

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized access attempts to restricted web pages
  • Multiple failed access attempts to specific URLs
  • Unexpected web page modifications

Network Indicators:

  • Unusual traffic patterns to web interface ports
  • Requests to known vulnerable endpoints

SIEM Query:

source="web_server" AND (url="*/restricted_page*" OR status=403) AND user="anonymous"

🔗 References

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