CVE-2025-36150

5.9 MEDIUM

📋 TL;DR

IBM Concert versions 1.0.0 through 2.0.0 use weak cryptographic algorithms that could allow attackers to decrypt sensitive information. This affects organizations using these versions of IBM Concert for data protection. The vulnerability stems from inadequate cryptographic strength (CWE-327).

💻 Affected Systems

Products:
  • IBM Concert
Versions: 1.0.0 through 2.0.0
Operating Systems: Not OS-specific
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 could decrypt highly sensitive information such as credentials, personal data, or confidential business information stored or transmitted by IBM Concert.

🟠

Likely Case

Attackers with access to encrypted data could potentially decrypt it over time using brute-force or cryptanalysis techniques against weak algorithms.

🟢

If Mitigated

With proper network segmentation and access controls, the attack surface is reduced, but vulnerable systems remain at risk of data decryption if encryption is compromised.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires access to encrypted data and cryptographic analysis capabilities.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.0.1 or later

Vendor Advisory: https://www.ibm.com/support/pages/node/7252019

Restart Required: Yes

Instructions:

1. Review IBM advisory. 2. Download and install IBM Concert version 2.0.1 or later. 3. Restart the application/services. 4. Verify the update was successful.

🔧 Temporary Workarounds

Network Segmentation

all

Restrict network access to IBM Concert systems to minimize exposure.

Data Encryption Review

all

Audit what data is encrypted by IBM Concert and consider additional encryption layers for sensitive information.

🧯 If You Can't Patch

  • Isolate affected systems from untrusted networks.
  • Implement additional encryption for sensitive data using strong algorithms.

🔍 How to Verify

Check if Vulnerable:

Check IBM Concert version via administrative interface or configuration files. Versions 1.0.0 through 2.0.0 are vulnerable.

Check Version:

Check application configuration or administrative console for version information.

Verify Fix Applied:

Confirm IBM Concert version is 2.0.1 or later and verify cryptographic settings use strong algorithms.

📡 Detection & Monitoring

Log Indicators:

  • Unusual decryption attempts
  • Multiple failed cryptographic operations
  • Access patterns suggesting cryptanalysis

Network Indicators:

  • Unusual traffic to/from IBM Concert systems
  • Patterns suggesting data exfiltration

SIEM Query:

source="ibm_concert" AND (event_type="crypto_error" OR event_type="decryption_failure")

🔗 References

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