CVE-2020-8339
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 · uneditedA cross-site scripting inclusion (XSSI) vulnerability was reported in the legacy IBM BladeCenter Advanced Management Module (AMM) web interface prior to version 3.68n [BPET68N]. This vulnerability could allow an authenticated user's AMM credentials to be disclosed if the user is convinced to visit a malicious web site, possibly through phishing. Successful exploitation requires specific knowledge about the user’s network to be included in the malicious web site. Impact is limited to the normal access restrictions of the user visiting the malicious web site, and subject to the user being logged into AMM, being able to connect to both AMM and the malicious web site while the web browser is open, and using a web browser that does not inherently protect against this class of attack. The JavaScript code is not executed on AMM itself.
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 · high confidenceCross-site scripting inclusion (XSSI) vulnerability in legacy IBM BladeCenter Advanced Management Module (AMM) web interface prior to version 3.68n. Attackers can include sensitive data (AMM credentials) from the AMM into malicious websites if authenticated users are phished into visiting those sites while logged into AMM.
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< 3.68nCVSS 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
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/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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Confirm IBM BladeCenter AMM is in useIdentify if the target device is an IBM BladeCenter with an Advanced Management Module by accessing the web interface or checking the device model via the management console or SNMPAffected if The device is an IBM BladeCenter with an Advanced Management Module (AMM)
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Retrieve the AMM firmware versionAccess the AMM web interface and navigate to the Firmware Update or System Information section to view the current firmware version, or use the AMM CLI command to query the firmware versionAffected if Unable to retrieve a firmware version from the AMM (may indicate a legacy AMM)
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Compare firmware version to the affected rangeCompare the installed firmware version (for example, 3.65, 3.66, 3.67) against the affected threshold of version 3.68n. Note that versions prior to 3.68n are vulnerable.Affected if The installed firmware version is less than 3.68n (for example, 3.67, 3.66, 3.65, or earlier)
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Check if AMM web interface is accessibleVerify that the AMM web interface is enabled and accessible on the network, as the XSSI vulnerability targets authenticated users accessing the web interfaceAffected if The AMM web interface is enabled and accessible to users who could be phished
A user is affected if the IBM BladeCenter AMM firmware version is below 3.68n and the web interface is accessible to authenticated users who could be targeted by phishing attacks.
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 data3.68n
Upgrade IBM BladeCenter AMM firmware to version 3.68n (BPET68N) or later; also educate users about not visiting untrusted sites while logged into management interfaces.
- Consultation6.0 h
- Implementation4.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-8339 — 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-2020-8339 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
- No spam, self-promotion, credentials, or personal data