CVE-2025-33102 Overview
CVE-2025-33102 affects IBM Concert Software versions 1.0.0 through 1.1.0. The product uses cryptographic algorithms that are weaker than industry expectations. An attacker who obtains protected ciphertext can decrypt highly sensitive information processed by the platform.
The vulnerability is classified under [CWE-327: Use of a Broken or Risky Cryptographic Algorithm]. The flaw is exploitable over the network without authentication or user interaction, and affects confidentiality of stored or transmitted data.
Critical Impact
An unauthenticated network attacker can break the weak cryptography protecting IBM Concert data and recover sensitive information from intercepted or accessed ciphertext.
Affected Products
- IBM Concert Software 1.0.0
- IBM Concert Software 1.0.1 through 1.0.5
- IBM Concert Software 1.1.0
Discovery Timeline
- 2025-09-01 - CVE-2025-33102 published to NVD
- 2025-09-03 - Last updated in NVD database
Technical Details for CVE-2025-33102
Vulnerability Analysis
IBM Concert is a software lifecycle and operations platform that aggregates application, security, and compliance data across enterprise environments. The platform handles credentials, configuration secrets, and customer telemetry that require strong cryptographic protection.
CVE-2025-33102 stems from the use of cryptographic primitives that no longer meet modern security requirements. Examples of algorithms that fall under [CWE-327] include DES, 3DES, RC4, MD5, and SHA-1, as well as RSA or ECC implementations using insufficient key sizes. The advisory does not name the specific algorithm, but the impact rating indicates confidentiality of highly sensitive information is at risk.
An attacker who can access encrypted material protected by the affected routine can perform offline cryptanalysis. Depending on the algorithm in use, attacks range from brute-force key recovery against short keys to chosen-plaintext or collision attacks against deprecated ciphers. The integrity and availability of the system are not directly affected, which is consistent with a confidentiality-only flaw.
Root Cause
The root cause is the selection of a deprecated or under-strength cryptographic algorithm within IBM Concert components. Weak primitives produce ciphertext or hashes that can be reversed faster than the security level the application assumes.
Attack Vector
Exploitation requires network-accessible ciphertext or hashes generated by IBM Concert. The attack does not require authentication or user interaction. No public proof-of-concept code is currently available, and the issue is not listed in the CISA Known Exploited Vulnerabilities catalog.
Refer to the IBM Support Page for vendor-specific technical details on the affected component and algorithm.
Detection Methods for CVE-2025-33102
Indicators of Compromise
- No specific indicators of compromise have been published for CVE-2025-33102.
- Successful exploitation is unlikely to leave host-based artifacts because cryptanalysis occurs offline against captured data.
Detection Strategies
- Inventory IBM Concert deployments and confirm the running version against the IBM advisory to identify exposure.
- Inspect network captures and TLS sessions involving Concert endpoints for use of deprecated ciphers, hashes, or short key lengths.
- Audit Concert configuration files and secret stores for fields encrypted with legacy algorithms that should be re-encrypted after patching.
Monitoring Recommendations
- Monitor outbound connections from Concert hosts for anomalous data egress that may indicate ciphertext exfiltration.
- Forward Concert application and audit logs to a centralized SIEM and alert on access to cryptographic key material or credential stores.
- Track vendor advisories at the IBM Support Page for updates to fixed versions and remediation steps.
How to Mitigate CVE-2025-33102
Immediate Actions Required
- Upgrade IBM Concert to the fixed version listed in the IBM security bulletin.
- Restrict network access to Concert management interfaces to trusted administrative networks until patching is complete.
- Rotate any secrets, API tokens, or credentials that may have been protected by the weak algorithm after upgrading.
Patch Information
IBM has published remediation guidance on the IBM Support Page. Customers running IBM Concert 1.0.0 through 1.1.0 should apply the vendor-supplied fix and follow any post-upgrade re-encryption steps documented in the advisory.
Workarounds
- Place IBM Concert behind a TLS-terminating reverse proxy enforcing modern cipher suites to reduce exposure of weakly protected data in transit.
- Limit which users and services can read Concert databases or backups containing ciphertext produced by the affected algorithm.
- Re-encrypt sensitive fields with a stronger algorithm after applying the IBM-provided patch, per vendor instructions.
# Verify TLS cipher strength on the IBM Concert endpoint
nmap --script ssl-enum-ciphers -p 443 concert.example.local
# Identify deprecated algorithms in OpenSSL-managed key material
openssl x509 -in concert-cert.pem -noout -text | grep -E "Signature Algorithm|Public Key"
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
