CVE-2023-34132

9.8 CRITICAL

📋 TL;DR

This vulnerability in SonicWall GMS and Analytics allows attackers to use password hashes instead of actual passwords for authentication, enabling Pass-the-Hash attacks. This affects SonicWall GMS versions 9.3.2-SP1 and earlier, and Analytics versions 2.5.0.4-R7 and earlier. Attackers can potentially gain unauthorized access to these management systems.

💻 Affected Systems

Products:
  • SonicWall GMS
  • SonicWall Analytics
Versions: GMS: 9.3.2-SP1 and earlier; Analytics: 2.5.0.4-R7 and earlier
Operating Systems: SonicOS-based appliances
Default Config Vulnerable: ⚠️ Yes
Notes: All deployments using affected versions are vulnerable regardless of configuration.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers gain administrative access to SonicWall management systems, leading to full network compromise, data exfiltration, and deployment of ransomware across managed devices.

🟠

Likely Case

Unauthorized access to management interfaces allowing configuration changes, credential harvesting, and lateral movement within the network.

🟢

If Mitigated

Limited impact with proper network segmentation, strong authentication controls, and monitoring in place.

🌐 Internet-Facing: HIGH - SonicWall management interfaces are often exposed to the internet for remote administration.
🏢 Internal Only: HIGH - Even internally, this vulnerability allows attackers with network access to compromise critical management systems.

🎯 Exploit Status

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

Pass-the-Hash attacks are well-understood techniques requiring only hash capture and authentication attempts.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: GMS: 9.3.3 or later; Analytics: 2.5.0.5 or later

Vendor Advisory: https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0010

Restart Required: Yes

Instructions:

1. Download latest firmware from SonicWall support portal. 2. Backup current configuration. 3. Apply firmware update via web interface. 4. Reboot appliance. 5. Verify update completed successfully.

🔧 Temporary Workarounds

Network Segmentation

all

Isolate SonicWall management interfaces from untrusted networks

Access Control Lists

all

Restrict access to management interfaces to authorized IP addresses only

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate management interfaces
  • Enable multi-factor authentication and monitor for authentication anomalies

🔍 How to Verify

Check if Vulnerable:

Check GMS version via web interface: System > Status > Product Information. Check Analytics version via web interface: System > About.

Check Version:

No CLI command; use web interface as described above

Verify Fix Applied:

Verify version numbers are at or above: GMS 9.3.3, Analytics 2.5.0.5

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed authentication attempts with hash-like strings
  • Successful logins from unusual IP addresses
  • Configuration changes from unexpected sources

Network Indicators:

  • Authentication traffic to management interfaces from unauthorized sources
  • Unusual port scanning targeting management ports

SIEM Query:

source="sonicwall" AND (event_type="authentication" AND (result="failure" OR user="*$*"))

🔗 References

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