Cisco IOS Software CIP Multiple Vulnerabilities (cisco-sa-20170927-cip)

High Nessus Plugin ID 103668

Synopsis

The remote device is missing a vendor-supplied security patch.

Description

According to its self-reported version and configuration, the Cisco IOS software running on the remote device is affected by multiple denial of service vulnerabilities in the Common Industrial Protocol (CIP) feature due to improper processing of unusual but valid CIP requests. An unauthenticated, remote attacker can exploit this, via specially crafted CIP requests, to cause the switch to stop processing traffic, requiring a device restart to regain functionality.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCuz95334 and CSCvc43709.

See Also

http://www.nessus.org/u?8057e067

Plugin Details

Severity: High

ID: 103668

File Name: cisco-sa-20170927-cip.nasl

Version: 1.4

Type: local

Family: CISCO

Published: 2017/10/05

Modified: 2018/04/05

Dependencies: 47864

Risk Information

Risk Factor: High

CVSSv2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSSv3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vulnerability Information

CPE: cpe:/o:cisco:ios

Required KB Items: Host/Cisco/IOS/Version

Patch Publication Date: 2017/09/27

Vulnerability Publication Date: 2017/09/27

Reference Information

CVE: CVE-2017-12233, CVE-2017-12234

BID: 101038