CVE-2024-55912: IBM Concert Information Disclosure Flaw

CVE-2024-55912 Overview

CVE-2024-55912 affects IBM Concert Software versions 1.0.0 through 1.0.5. The product uses cryptographic algorithms weaker than industry standards. An attacker with sufficient resources can exploit this weakness to decrypt sensitive information processed or stored by the application. The flaw is categorized under [CWE-327] (Use of a Broken or Risky Cryptographic Algorithm). Exploitation occurs over the network and requires no authentication or user interaction, though attack complexity is high. IBM published a security bulletin addressing this issue for affected Concert deployments.

Critical Impact
Successful exploitation allows attackers to decrypt highly sensitive information protected by IBM Concert Software, compromising the confidentiality of enterprise data.

Affected Products

IBM Concert Software 1.0.0
IBM Concert Software versions 1.0.1 through 1.0.4
IBM Concert Software 1.0.5

Discovery Timeline

2025-05-02 - CVE-2024-55912 published to the National Vulnerability Database
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-55912

Vulnerability Analysis

The vulnerability stems from IBM Concert Software's reliance on cryptographic algorithms that no longer meet current security expectations. Weak algorithms allow adversaries to attack ciphertext through cryptanalysis, brute force, or known algorithmic weaknesses. When applied to sensitive data at rest or in transit, the resulting protection can be reversed by a capable attacker.

The weakness is classified as [CWE-327]: Use of a Broken or Risky Cryptographic Algorithm. This class of flaw commonly includes deprecated ciphers such as DES, RC4, or MD5-based constructions, and insufficient key lengths for modern symmetric or asymmetric primitives. The IBM advisory does not publicly detail which specific algorithm is affected in Concert Software.

The scope covers Concert Software releases 1.0.0 through 1.0.5. Because Concert centralizes application risk, compliance, and operational intelligence, the confidentiality exposure extends to any regulated data processed by the platform.

Root Cause

The root cause is the selection or configuration of a cryptographic algorithm that does not provide sufficient strength for the data it protects. This may include outdated symmetric ciphers, weak hashing functions, insecure modes of operation, or undersized key material. Such choices reduce the computational cost required for an attacker to recover plaintext from intercepted or exfiltrated ciphertext.

Attack Vector

The attack vector is network-based and requires no privileges or user interaction. An attacker who can obtain protected data — for example, through passive network capture, storage access, or intercepted API traffic — can attempt offline cryptanalysis against the weak algorithm. Attack complexity is high, reflecting the specialized capability and computational resources required. Refer to the IBM Support Page for vendor-published technical details.

No public proof-of-concept exploit has been released, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog.

Detection Methods for CVE-2024-55912

Indicators of Compromise

No specific host-based or network-based indicators of compromise have been published for CVE-2024-55912.
Unexplained decryption or disclosure of data protected by IBM Concert should be treated as suspicious pending investigation.

Detection Strategies

Inventory all IBM Concert Software deployments and verify installed versions against the vulnerable range 1.0.0 through 1.0.5.
Inspect Concert configuration for deprecated cipher suites, weak hash functions, or short key lengths that align with the vendor advisory guidance.
Review TLS and application-layer protocol negotiations to and from Concert nodes for downgrade to weak algorithms.

Monitoring Recommendations

Log and alert on cryptographic configuration changes applied to Concert Software components.
Monitor for unauthorized access to backups, configuration exports, or database snapshots that could feed offline decryption attempts.
Track outbound data transfers from Concert hosts to identify potential bulk exfiltration of encrypted material.

How to Mitigate CVE-2024-55912

Immediate Actions Required

Apply the fix documented in the IBM Support Page for IBM Concert Software.
Restrict network access to Concert Software management and API endpoints to trusted administrative sources.
Rotate cryptographic keys, secrets, and credentials that may have been protected using the weak algorithm.

Patch Information

IBM has published remediation guidance for Concert Software versions 1.0.0 through 1.0.5 in its official support bulletin. Administrators should upgrade to the fixed release specified by IBM and apply any recommended configuration changes to enforce stronger cryptographic algorithms. Consult the IBM Support Page for exact fixed version identifiers and upgrade procedures.

Workarounds

Enforce TLS 1.2 or higher with modern cipher suites at the network boundary in front of Concert Software.
Disable deprecated algorithms and legacy protocol versions at the operating system and Java runtime layer where supported.
Encrypt sensitive Concert data stores using platform-level encryption with strong keys as a compensating control until the patch is applied.

bash

# Configuration example
# Refer to the IBM Support Page for vendor-specific remediation steps:
# https://www.ibm.com/support/pages/node/7232169