Executive Summary

Title Cisco IOS Software Common Industrial Protocol Request Denial of Service Vulnerability
Name cisco-sa-20160928-cip First vendor Publication 2016-09-28
Vendor Cisco Last vendor Modification 2016-09-28
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.8 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


A vulnerability in the Common Industrial Protocol (CIP) feature of Cisco IOS Software could allow an unauthenticated, remote attacker to create a denial of service (DoS) condition.

The vulnerability is due to a failure to properly process an unusual, but valid, set of requests to an affected device. An attacker could exploit this vulnerability by submitting a CIP message request designed to trigger the vulnerability to an affected device. An exploit could cause the switch to stop processing traffic, requiring a restart of the device to regain functionality.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160928-cip

This advisory is part of the September 28, 2016, release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication, which includes 10 Cisco Security Advisories that describe 11 vulnerabilities. All the vulnerabilities have a Security Impact Rating of High. For a complete list of the advisories and links to them, see Cisco Event Response: September 2016 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication.

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Original Source

Url : http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco (...)

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-399 Resource Management Errors

CPE : Common Platform Enumeration

Os 85

Snort® IPS/IDS

Date Description
2016-09-29 Cisco IOS CIP request parser out of bounds array access attempt
RuleID : 40304 - Revision : 1 - Type : PROTOCOL-SCADA
2016-09-29 Cisco IOS CIP request parser out of bounds array access attempt
RuleID : 40303 - Revision : 1 - Type : PROTOCOL-SCADA

Nessus® Vulnerability Scanner

Date Description
2016-10-25 Name : The remote device is missing a vendor-supplied security patch.
File : cisco-sa-20160928-cip-ios.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2016-10-26 13:21:13
  • Multiple Updates
2016-10-07 05:24:48
  • Multiple Updates
2016-10-06 05:22:38
  • Multiple Updates
2016-09-28 21:23:32
  • First insertion