CVE-2011-3155
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 · uneditedUnspecified vulnerability in HP Onboard Administrator (OA) 3.21 through 3.31 allows remote attackers to bypass intended access restrictions via unknown vectors.
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 confidenceHP Onboard Administrator versions 3.21 through 3.31 contain an unspecified vulnerability allowing remote attackers to bypass intended access restrictions. The CVSS score of 6.4 indicates network-exploitable with partial authentication bypass, though the exact attack vector and technical mechanism are not disclosed in the available documentation.
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= 3.21= 3.30= 3.31CVSS 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
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- None
AV:N/AC:L/Au:N/C:P/I:P/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 HP OA version via web interfaceLog into the HP Onboard Administrator web UI and locate the version information typically found in the 'Home' or 'General' section of the management interfaceAffected if The displayed version is 3.21, 3.30, or 3.31 (or any version between 3.21 and 3.31 inclusive)
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Identify HP OA version via CLIAccess the OA CLI via SSH or serial console and run the command 'SHOW VERSION' or 'SHOW SERVER' to retrieve the firmware versionAffected if The reported firmware version matches 3.21, 3.30, or 3.31 (or any version between 3.21 and 3.31 inclusive)
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Verify remote network accessibility of OA interfaceFrom a remote host, attempt to reach the OA management interface on the expected IP address using HTTP/HTTPS (typically ports 80, 443, or 8080). Check if the interface responds to network requests from untrusted segmentsAffected if The OA web interface is reachable from network segments that are not exclusively trusted management networks
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Confirm OA authentication configurationIn the OA web UI, navigate to the 'Security' or 'Access Control' settings and review whether local authentication or external authentication (such as LDAP/Active Directory) is in use, and whether the bypass applies to certain authentication pathsAffected if Local authentication is enabled and the OA is accessible over the network (this configuration aligns with the partial authentication bypass vector described)
You are affected if HP Onboard Administrator version 3.21 through 3.31 is installed AND the management interface is accessible over the network from untrusted segments.
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 dataUpgrade HP Onboard Administrator to a version beyond 3.31 (consult HP security bulletin for specific patched releases). As an interim control, restrict network access to the OA management interface to trusted IP addresses or management networks.
- Consultation4.0 h
- Implementation3.0 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-2011-3155 — 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-2011-3155 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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