CVE-2023-37231

9.8 CRITICAL

📋 TL;DR

Loftware Spectrum versions before 4.6 HF14 contain a hard-coded password vulnerability that allows attackers to gain unauthorized access to the system. This affects all organizations running vulnerable versions of Loftware Spectrum label management software. Attackers can use this default credential to compromise the application and potentially the underlying system.

💻 Affected Systems

Products:
  • Loftware Spectrum
Versions: All versions before 4.6 HF14
Operating Systems: Windows, Linux
Default Config Vulnerable: ⚠️ Yes
Notes: All installations of affected versions are vulnerable regardless of configuration

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise leading to data theft, ransomware deployment, or use as a foothold for lateral movement within the network

🟠

Likely Case

Unauthorized access to the Loftware Spectrum application allowing configuration changes, data manipulation, or privilege escalation

🟢

If Mitigated

Limited impact if network segmentation and access controls prevent external or unauthorized internal access to the vulnerable service

🌐 Internet-Facing: HIGH - If exposed to the internet, attackers can easily exploit this using the known hard-coded credentials
🏢 Internal Only: HIGH - Even internally, any user or compromised system on the network could exploit this vulnerability

🎯 Exploit Status

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

Exploitation requires only knowledge of the hard-coded password, which is likely documented in public advisories

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 4.6 HF14

Vendor Advisory: https://docs.loftware.com/spectrum-releasenotes/Content/Hotfix/4.6_HF14.htm

Restart Required: Yes

Instructions:

1. Download Loftware Spectrum 4.6 HF14 from official vendor sources. 2. Backup current configuration and data. 3. Install the hotfix following vendor documentation. 4. Restart the Loftware Spectrum service. 5. Verify the new version is running.

🔧 Temporary Workarounds

Network Isolation

all

Restrict network access to Loftware Spectrum to only trusted IP addresses and required users

Credential Rotation

all

Manually change any default or hard-coded passwords if the application allows it

🧯 If You Can't Patch

  • Implement strict network segmentation and firewall rules to limit access to Loftware Spectrum
  • Monitor authentication logs for unauthorized access attempts and implement intrusion detection

🔍 How to Verify

Check if Vulnerable:

Check Loftware Spectrum version in administration console or via installed programs list

Check Version:

Check application interface or consult vendor documentation for version verification

Verify Fix Applied:

Verify version shows 4.6 HF14 or later in administration interface

📡 Detection & Monitoring

Log Indicators:

  • Failed authentication attempts followed by successful login with default credentials
  • Unusual administrative actions from unexpected IP addresses

Network Indicators:

  • Unauthorized access to Loftware Spectrum ports (default 8080/8443)
  • Traffic patterns indicating credential brute-forcing

SIEM Query:

source="loftware_spectrum" AND (event_type="authentication" AND result="success") AND user="default_admin"

🔗 References

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