CVE-2018-0432
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 vulnerability in the error reporting feature of the Cisco SD-WAN Solution could allow an authenticated, remote attacker to gain elevated privileges on an affected device. The vulnerability is due to a failure to properly validate certain parameters included within the error reporting application configuration. An attacker could exploit this vulnerability by sending a crafted command to the error reporting feature. A successful exploit could allow the attacker to gain root-level privileges and take full control of the device.
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 confidenceThe vulnerability exists in the error reporting feature of Cisco SD-WAN Solution. An authenticated, remote attacker can send crafted commands to the error reporting feature which fails to properly validate certain parameters in its configuration, allowing the attacker to escalate privileges to root level and gain full device control.
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< 18.3.0< 18.3.0< 18.3.0< 18.3.0all versionsCVSS 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 SD-WAN device modelLog into the device CLI and run 'show hardware' or 'show version' to determine if the device is a Vedge 100, 1000, 2000, or 5000, or if it is a Vmanage NMSAffected if Device is any of these models and firmware version is below 18.3.0, or device is Vmanage (all versions)
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Check the installed firmware version on Vedge devicesExecute 'show version' or 'show system information' on Vedge devices to retrieve the current firmware version numberAffected if Firmware version is lower than 18.3.0 on any Vedge model (100, 1000, 2000, 5000)
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Confirm Vmanage versionAccess Vmanage web UI or CLI and check the software version under Administration > Software Repository or using 'show version' in CLIAffected if Any Vmanage version is installed (all versions affected per CVE)
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Determine if error reporting feature is enabledReview the device configuration using 'show running-config | include error' or check system settings for error reporting/debug reporting modulesAffected if Error reporting feature is configured or enabled on the device, making exploitation possible
The environment is affected if any Vedge device runs firmware below 18.3.0, or if Vmanage is present at any version, AND the error reporting feature is enabled or accessible to authenticated users.
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 data18.3.0
Apply the Cisco patch for CVE-2018-0432 to affected SD-WAN devices. As a compensating control, restrict administrative access to trusted personnel and monitor for unauthorized error reporting feature usage.
- Consultation4.0 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 $4,544.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-0432 — 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-2018-0432 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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