Synel SY-780/A terminal denial-of-service vulnerability

Overview

Synel SY-780/A terminals contain a denial-of-service vulnerability when specific ports of the device are scanned.

Description

According to Synel’s website the SY-780/A terminal is a stand-alone device used for time & attendance monitoring, production floor control, job costing, and access control applications. It has been reported that performing a port or vulnerability scan against this device or specifically hitting ports 1641, 3734 or 3735, will cause the device to stop responding completely.

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Impact

If an attacker performs a port scan on the SY-780/A terminal, that attacker can completely lock the device, making the device inaccessible.

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Solution

We are currently unaware of a practical solution to this problem.

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Restrict network access

As a general good security practice, only allow connections from trusted hosts and networks.

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Vendor Information

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Synel Affected

Updated: June 29, 2012

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

We are not aware of further vendor information regarding this vulnerability.

CVSS Metrics

Group	Score	Vector
Base	7.8	AV:N/AC:L/Au:N/C:N/I:N/A:C
Temporal	6.3	E:F/RL:W/RC:UC
Environmental	1.9	CDP:LM/TD:L/CR:ND/IR:ND/AR:ND

References

<http://www.synel.com/time-and-attendance/sy-780a.html&gt;

Acknowledgements

Thanks to the reporter that wishes to remain anonymous.

This document was written by Michael Orlando.

Other Information

CVE IDs:	CVE-2012-2970
Date Public:	2012-07-09 Date First Published: