CVE-2023-40363
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedIBM InfoSphere Information Server 11.7 could allow an authenticated user to change installation files due to incorrect file permission settings. IBM X-Force ID: 263332.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceIBM InfoSphere Information Server 11.7 contains a file permission misconfiguration that allows authenticated users to modify installation files. This improper access control could enable an attacker with standard user privileges to alter executable or configuration files in the installation directory, potentially leading to privilege escalation or code execution.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 11.7CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm the installed version of IBM InfoSphere Information ServerLocate and inspect the version information for your IBM InfoSphere installation. This is typically found in installation logs, the version.info file within the installation directory, or by querying the system inventory. Compare your installed version to 11.7.Affected if The installed version is exactly 11.7 (the affected version range is = 11.7).
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Identify the IBM InfoSphere installation directoryLocate the primary installation directory for IBM InfoSphere Information Server. This is typically set during initial installation and may be found in installation records, environment variables, or by searching for IBM InfoSphere components on the system.Affected if The installation directory exists on the system and contains IBM InfoSphere 11.7 files.
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Inspect file permissions on the installation directoryUse operating system tools (such as icacls on Windows or ls -la on Linux/Unix) to examine the permissions on the IBM InfoSphere installation directory and its subdirectories. Focus on identifying which users and groups have write access.Affected if Standard non-privileged user accounts have been granted write permissions to the installation directory or its executable/configuration subdirectories.
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Check for write access by authenticated users to executable filesReview permissions specifically on executable files (.exe, .sh, .bat, .dll) within the installation directory. Determine if authenticated standard users can modify these files.Affected if Authenticated standard users have write permissions to executable files in the installation directory.
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Verify configuration file integrityInspect permissions on configuration files (typically found in config or conf subdirectories within the installation path). Check if non-administrator users can modify XML, properties, or other configuration files.Affected if Standard user accounts can modify configuration files in the installation directory.
A user is affected if they have IBM InfoSphere Information Server version 11.7 installed and standard authenticated users have write access to installation files, executables, or configuration files in the installation directory.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataReview and correct file permissions on the IBM InfoSphere installation directory to enforce least-privilege access. Ensure only designated service accounts and administrators have write access to installation files, and verify no unauthorized modifications have occurred.
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-40363 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2023-40363 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data