CVE-2024-55896
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 PowerHA SystemMirror for i 7.4 and 7.5 contains improper restrictions when rendering content via iFrames. This vulnerability could allow an attacker to gain improper access and perform unauthorized actions on the system.
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 PowerHA SystemMirror for i 7.4 and 7.5 contains improper restrictions when rendering content via iFrames, allowing potentially malicious sites to embed the application in frames. This could enable clickjacking or frame-injection attacks where users are tricked into performing unintended actions.
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= 7.4= 7.5CVSS 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
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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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Identify IBM PowerHA SystemMirror for i installation and versionUse the command 'wrkqry qsys/qadbled' or check the system for installed licensed program using 'dsplog' entries or contact IBM i system administrator to confirm PowerHA SystemMirror is installed. Query the installed version via 'GO POWERHA' menu option or check product library documentation.Affected if The installed version is 7.4 or 7.5 on IBM i system.
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Verify web interface accessibilityDetermine if the PowerHA SystemMirror web console or any associated web application is accessible. Check if the web service is running using 'WRKACTJOB' for HTTP server jobs or check the PowerHA web server configuration.Affected if The web interface for PowerHA is accessible over HTTP/HTTPS.
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Inspect HTTP response headers for X-Frame-OptionsUse a browser developer tool, curl, or similar tool to fetch the main PowerHA web page URL and examine the HTTP response headers. Look specifically for 'X-Frame-Options' header.Affected if The HTTP response does NOT contain 'X-Frame-Options: DENY' or 'X-Frame-Options: SAMEORIGIN' header.
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Inspect Content-Security-Policy for frame-ancestorsExamine the same HTTP response headers from the previous step for 'Content-Security-Policy' or 'Content-Security-Policy-Report-Only' header. Check if 'frame-ancestors' directive is present and properly configured.Affected if The CSP header is absent OR does not include the 'frame-ancestors' directive restricting embedding domains.
A system is affected if it runs IBM PowerHA SystemMirror for i version 7.4 or 7.5 with an accessible web interface that lacks X-Frame-Options DENY/SAMEORIGIN headers and Content-Security-Policy frame-ancestors restrictions, allowing arbitrary sites to embed the application in iframes.
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 dataConfigure the web server or application to include X-Frame-Options: DENY or SAMEORIGIN, or implement Content-Security-Policy with frame-ancestors directive to restrict which domains can embed the application in iframes.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-55896 — 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-2024-55896 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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- 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
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