Juniper Networks
Solutions
Products & Services
Company
Partners
Support
Education

Signature Detail

Security Intelligence Center
Signatures
Print

Short Name

SCADA:MODBUS:CLEAR

Severity

Low

Recommended

No

Category

SCADA

Keywords

scada modbus

Release Date

2005/02/16

Update Number

1213

Supported Platforms

idp-4.0+, isg-3.0+, j-series-9.5+, mx-9.4+, srx-9.2+, srx-branch-9.4+, vsrx-12.1+

MODBUS: Clear Counters and Diagnostic Registers


This signature detects attempts to erase the counters and diagnostics of a Programmable Logic Controller (PLC). The erasure can enable attackers to hide their previous attacks.

Extended Description

A vulnerability exists in the MODBUS server as it may clear the counters and diagnostic registers when receiving a special request. Remote attackers can exploit this vulnerability to avoid detection.

References

  • URL: http://en.wikipedia.org/wiki/Modbus
  • URL: http://www.lammertbies.nl/comm/info/modbus.html
  • URL: http://jamod.sourceforge.net/kbase/protocol.html

Site Map
RSS Feeds
Careers
Accessibility
Feedback
Privacy Policy
Legal Notices
Copyright © 1999-2010 Juniper Networks, Inc. All rights reserved.
Help
|
My Account
|
Log Out