CVE-2016-2332
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 · uneditedflu.cgi in the web interface on SysLINK SL-1000 Machine-to-Machine (M2M) Modular Gateway devices with firmware before 01A.8 allows remote authenticated users to execute arbitrary commands via the 5066 (aka dnsmasq) parameter.
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 confidenceA command injection vulnerability in flu.cgi on SysLINK SL-1000 M2M Modular Gateway devices allows remote authenticated users to execute arbitrary OS commands through the dnsmasq parameter (5066). This is a classic OS command injection flaw in the web interface's handling of the dnsmasq configuration parameter.
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 dataall 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 device modelAccess the device web interface or check physical labeling to confirm the device is a Systech Syslink SL-1000 M2M Modular GatewayAffected if The device is a Syslink SL-1000 series gateway
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Verify web interface accessibilityAttempt to access the flu.cgi endpoint on the device (typically http://device-ip/flu.cgi)Affected if The flu.cgi web interface is reachable over the network
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Check if dnsmasq configuration port is exposedScan or check if port 5066 (dnsmasq parameter service) is open and reachable on the deviceAffected if Port 5066 is accessible from the network
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Assess remote authentication accessDetermine if remote web interface authentication is enabled and accessible from external networksAffected if Remote authenticated access to the web interface is possible
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Check firmware versionIf accessible, check the device firmware version through the web interface or administrative consoleAffected if The firmware version is any version (all versions are affected)
The environment is affected if you have a Systech Syslink SL-1000 device with the flu.cgi web interface and port 5066 accessible remotely, regardless of firmware version.
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 dataUpdate firmware to version 01A.8 or later. If immediate patching is not possible, disable remote web administration access, enforce strong authentication, and segment the device on a restricted management network.
- Consultation4.0 h
- Implementation8.0 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 $6,656.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-2332 — 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-2016-2332 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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