CVE-2024-34579

7.8 HIGH

📋 TL;DR

This vulnerability in Fuji Electric Alpha5 SMART allows attackers to execute arbitrary code through a stack-based buffer overflow. It affects industrial control systems using this software, potentially compromising PLC programming and control functions.

💻 Affected Systems

Products:
  • Fuji Electric Alpha5 SMART
Versions: All versions prior to the patched release
Operating Systems: Windows-based systems running Alpha5 SMART
Default Config Vulnerable: ⚠️ Yes
Notes: Affects systems using Alpha5 SMART for PLC programming and maintenance

⚠️ 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 allowing remote code execution, manipulation of industrial processes, and potential physical damage to equipment.

🟠

Likely Case

Unauthorized access to PLC programming functions, disruption of industrial operations, and data theft from control systems.

🟢

If Mitigated

Limited impact with proper network segmentation and access controls, potentially only affecting isolated systems.

🌐 Internet-Facing: HIGH if exposed to internet without proper segmentation, as buffer overflows can be exploited remotely.
🏢 Internal Only: MEDIUM within industrial networks, requiring network access but potentially affecting critical systems.

🎯 Exploit Status

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

Requires network access to Alpha5 SMART services; buffer overflow exploitation requires specific knowledge of the software

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check Fuji Electric advisory for specific patched version

Vendor Advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-25-016-05

Restart Required: No

Instructions:

1. Contact Fuji Electric for patch information 2. Apply the security update to all Alpha5 SMART installations 3. Verify patch installation

🔧 Temporary Workarounds

Network Segmentation

all

Isolate Alpha5 SMART systems from untrusted networks

Access Control

all

Restrict network access to Alpha5 SMART services using firewalls

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate affected systems
  • Monitor network traffic to Alpha5 SMART services for suspicious activity

🔍 How to Verify

Check if Vulnerable:

Check Alpha5 SMART version against Fuji Electric's advisory

Check Version:

Check version within Alpha5 SMART application interface

Verify Fix Applied:

Verify installed version matches or exceeds patched version from vendor

📡 Detection & Monitoring

Log Indicators:

  • Unusual connection attempts to Alpha5 SMART services
  • Multiple failed connection attempts

Network Indicators:

  • Unusual traffic patterns to Alpha5 SMART ports
  • Suspicious payloads in network traffic

SIEM Query:

source_ip="*" AND dest_port="[Alpha5 SMART port]" AND (event_type="connection_attempt" OR event_type="buffer_overflow_attempt")

🔗 References

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