CVE-2025-62765

7.5 HIGH

📋 TL;DR

The General Industrial Controls Lynx+ Gateway transmits sensitive data including credentials in cleartext, allowing attackers to intercept network traffic and obtain this information. This affects all organizations using vulnerable versions of the Lynx+ Gateway for industrial control systems.

💻 Affected Systems

Products:
  • General Industrial Controls Lynx+ Gateway
Versions: All versions prior to patched release
Operating Systems: Embedded/Proprietary OS
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all deployments using cleartext protocols for communication.

⚠️ 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

Attackers gain administrative credentials, take full control of industrial systems, manipulate processes, cause physical damage, or disrupt critical operations.

🟠

Likely Case

Attackers harvest credentials, gain unauthorized access to industrial networks, and potentially move laterally to compromise other systems.

🟢

If Mitigated

With proper network segmentation and monitoring, impact is limited to credential exposure requiring rotation and potential isolated system compromise.

🌐 Internet-Facing: HIGH - If exposed to internet, attackers can easily intercept traffic without network access.
🏢 Internal Only: MEDIUM - Requires internal network access but cleartext transmission makes interception straightforward.

🎯 Exploit Status

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

Exploitation requires network access to intercept traffic but no authentication or special tools beyond packet capture.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check vendor advisory for specific patched version

Vendor Advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-25-317-08

Restart Required: Yes

Instructions:

1. Review CISA advisory ICSA-25-317-08
2. Contact General Industrial Controls for patch availability
3. Apply patch following vendor instructions
4. Restart gateway services
5. Verify encryption is enabled

🔧 Temporary Workarounds

Network Segmentation

all

Isolate Lynx+ Gateway from untrusted networks using firewalls and VLANs

VPN Tunnel

all

Route all gateway communications through encrypted VPN tunnels

🧯 If You Can't Patch

  • Implement network-level encryption (IPsec/VPN) for all gateway communications
  • Rotate all credentials that may have been transmitted in cleartext

🔍 How to Verify

Check if Vulnerable:

Use network analyzer (Wireshark) to capture traffic from Lynx+ Gateway and check for cleartext credentials

Check Version:

Check device web interface or console for firmware version

Verify Fix Applied:

Verify encrypted protocols (TLS/SSH) are used for all communications and no cleartext credentials appear in traffic captures

📡 Detection & Monitoring

Log Indicators:

  • Failed authentication attempts from new IPs
  • Unusual access patterns to gateway

Network Indicators:

  • Cleartext protocol traffic (HTTP, FTP, Telnet) from gateway
  • Credential strings in packet captures

SIEM Query:

source_ip="lynx_gateway_ip" AND (protocol="http" OR protocol="ftp" OR protocol="telnet")

🔗 References

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