Authenticated username disclosure via response discrepancy
Published Mar 28, 2025 · Updated Sep 1, 2025
Observable response discrepancy in IBM InfoSphere Information Server 11.7 allows remote authenticated users to obtain sensitive usernames. The vendor attributes the exposure to distinguishable responses but has not identified the affected endpoint, request, or response difference. A valid low-privilege account and network access are required; disclosure is limited to username information, with no reported data modification or service impact.
Summary
What happened
Observable response discrepancy in IBM InfoSphere Information Server 11.7 allows remote authenticated users to obtain sensitive usernames. The vendor attributes the exposure to distinguishable responses but has not identified the affected endpoint, request, or response difference. A valid low-privilege account and network access are required; disclosure is limited to username information, with no reported data modification or service impact.
The record
- CVE
- CVE-2024-51477
- Published
- Mar 28, 2025
- Updated
- Sep 1, 2025
- Vendor
- IBM
- Product
- InfoSphere Information Server
- Classifications
- CWE-203, T1087
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 28, 2025CVE publishedPublication date reported by the CVE source.
- Sep 1, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=11.7
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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