CVE-2012-2970
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 Synel SY-780/A Time & Attendance terminal allows remote attackers to cause a denial of service (device hang) via network traffic to port (1) 1641, (2) 3734, or (3) 3735.
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 Synel SY-780/A Time & Attendance terminal contains a denial of service vulnerability where specially crafted network traffic sent to ports 1641, 3734, or 3735 causes the device to hang and become unresponsive. This is an unauthenticated remote DoS affecting a legacy hardware device.
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
- Authentication
- None
- Confidentiality
- None
- Integrity
- None
- Availability
- Complete
AV:N/AC:L/Au:N/C:N/I:N/A:C
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 Synel SY-780/A device on the networkPerform a network scan to discover devices. Look for the Synel SY-780/A Time & Attendance terminal by checking device hostname, MAC OUI (Synel), or by accessing the device web interface if available. Cross-reference with asset inventory records.Affected if A Synel SY-780/A Time & Attendance Terminal exists on the network
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Check if ports 1641, 3734, or 3735 are accessibleRun a port scan against the suspected device IP address targeting ports 1641, 3734, and 3735 using nmap or similar tool: nmap -p 1641,3734,3735 <device_ip>Affected if Any of ports 1641, 3734, or 3735 are open and reachable
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Determine network exposure of the deviceReview firewall rules, network segmentation, and ACLs to determine if the device ports are accessible from untrusted networks or the internet. Check if the device is on an isolated VLAN or has restricted access controls.Affected if The device ports are reachable from networks outside the trusted internal network
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Verify device is responding to network requestsPing the device IP address and attempt to connect to the affected ports to confirm the device is online and reachableAffected if The device is online and responding to network requests on any of the affected ports
You are affected if you have a Synel SY-780/A Time & Attendance Terminal on your network with ports 1641, 3734, or 3735 accessible from any network where untrusted users could send traffic.
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 dataRestrict network access to the affected device by implementing firewall rules or network segmentation to block unauthorized traffic to ports 1641, 3734, and 3735. If the device is end-of-life, consider replacement with a supported model.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2012-2970 — 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-2012-2970 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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