CVE-2018-7943
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 · uneditedThere is an authentication bypass vulnerability in some Huawei servers. A remote attacker with low privilege may bypass the authentication by some special operations. Due to insufficient authentication, an attacker may exploit the vulnerability to get some sensitive information and high-level users' privilege.
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 confidenceThis is an authentication bypass vulnerability in certain Huawei servers where a remote attacker with low-level privileges can bypass authentication through unspecified special operations. Due to insufficient authentication checks, the attacker can gain access to sensitive information and obtain high-level user privileges.
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= v100r005c00= v100r005c00= v100r005c00= v100r001c00= v100r001c00= v100r001c00= v100r001c00= v100r001c00CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 modelLocate the server nameplate or check the BMC/iLO management interface for the product name. Common models include 1288h V5, 2288h V5, 2488 V5, Ch121 V3, Ch121l V3, Ch121l V5, Ch121 V5, or Ch140 V3.Affected if The server model matches one of these: 1288h V5, 2288h V5, 2488 V5, Ch121 V3, Ch121l V3, Ch121l V5, Ch121 V5, or Ch140 V3.
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Check the installed firmware versionAccess the BMC/iLO web interface or use IPMI commands to retrieve the firmware version. Look for a version field under System Information or Firmware Information.Affected if The firmware version is v100r005c00 for V5 models (1288h V5, 2288h V5, 2488 V5) or v100r001c00 for V3 models (Ch121 V3, Ch121l V3, Ch121l V5, Ch121 V5, Ch140 V3).
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Verify management interface accessibilityConfirm whether the BMC/iLO management interface is reachable over the network from untrusted segments. Check firewall rules or network ACLs controlling access to ports 443 or 80 on the BMC.Affected if The management interface is exposed to network segments without proper access controls or is reachable from outside the trusted network.
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Review user account configurationCheck the BMC user list to confirm whether low-privilege accounts exist. Ensure authentication is enforced for all roles and that default or weak accounts are not present.Affected if Low-privilege or unauthorized user accounts exist in the BMC that were not created by your organization.
The environment is affected if the server is one of the listed models AND the installed firmware matches the specific vulnerable version (v100r005c00 for V5 or v100r001c00 for V3) and the management interface is network-accessible.
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 available Huawei security patches for affected server models and restrict network access to management interfaces. Monitor for unauthorized access attempts and follow least-privilege principles for user accounts.
- Consultation8.0 h
- Implementation16.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $10,240.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-7943 — 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-2018-7943 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