CVE-2018-7942
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 · uneditedThe iBMC (Intelligent Baseboard Management Controller) of some Huawei servers have an authentication bypass vulnerability. An unauthenticated, remote attacker may send some specially crafted messages to the affected products. Due to improper authentication design, successful exploit may cause some information leak.
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 confidenceHuawei iBMC (Intelligent Baseboard Management Controller) on certain servers contains an authentication bypass vulnerability. An unauthenticated remote attacker can send specially crafted messages to the iBMC interface. Due to improper authentication design in the affected products, successful exploitation allows the attacker to bypass authentication and access sensitive information.
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= 100r005c00= 100r005c00= 100r005c00= 100r001c00= 100r001c00= 100r001c00= 100r001c00CVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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 the Huawei server modelCheck the physical server or use IPMI/BMC commands to retrieve the server product name and model numberAffected if The server model is a 1288h V5, 2288h V5, 2488 V5, Ch242 V3, Ch121l V3, Ch121l V5, or Ch121 V3
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Check the iBMC firmware versionAccess the iBMC web interface or use IPMI commands such as 'ipmitool -I lanplus -H <ibmc_ip> -u admin -P password raw' or check via BMC web UI under 'System' > 'Firmware Information'Affected if The iBMC firmware version matches exactly 100r005c00 for V5 models or 100r001c00 for V3 models
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Verify iBMC network accessibilityConfirm that the iBMC management interface is reachable on the network (typically ports 443, 80, or 623 for IPMI)Affected if iBMC is exposed to network where unauthenticated attackers can send HTTP/HTTPS requests to the management interface
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Confirm authentication is handled by iBMCVerify that the iBMC interface is the primary authentication mechanism for remote management accessAffected if iBMC is the active authentication layer for out-of-band management access
You are affected if you run any of the listed Huawei server models with iBMC firmware version 100r005c00 (V5) or 100r001c00 (V3) and the iBMC interface is network-accessible to potential attackers.
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 dataApply the Huawei security patch for iBMC. Until patched, restrict network access to iBMC management interfaces using firewall rules or VLAN segmentation to prevent unauthorized external access.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,224.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-7942 — 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-2018-7942 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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- Version or environment caveats, and links to real fixes
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