ESB-2018.0195.2 - UPDATE [Cisco] Cisco Industrial Ethernet 4010 Series Switches: Denial of service - Existing account 2018-01-18

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             AUSCERT External Security Bulletin Redistribution

                              ESB-2018.0195.2
   Cisco IOS Software for Industrial Ethernet 4010 Series Switches Test
   Command Arbitrary Code Execution and Denial of Service Vulnerability
                              18 January 2018

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Cisco Industrial Ethernet 4010 Series Switches
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-0088  

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180117-iess

Revision History:  January 18 2018: Added Operating System
                   January 18 2018: Initial Release

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Cisco Security Advisory

Cisco IOS Software for Industrial Ethernet 4010 Series Switches Test Command 
Arbitrary Code Execution and Denial of Service Vulnerability

Medium

Advisory ID: cisco-sa-20180117-iess

First Published: 2018 January 17 16:00 GMT

Version 1.0: Final

Workarounds: No workarounds available

Cisco Bug IDs:

CSCvf71150

CVSS Score:

Base 6.7

Base 6.7 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X

CVE-2018-0088

CWE-399

Summary

A vulnerability in one of the diagnostic test CLI commands on Cisco Industrial
Ethernet 4010 Series Switches running Cisco IOS Software could allow an 
authenticated, local attacker to impact the stability of the device. This 
could result in arbitrary code execution or a denial of service (DoS) 
condition. The attacker has to have valid user credentials at privilege level
15.

The vulnerability is due to a diagnostic test CLI command that allows the 
attacker to write to the device memory. An attacker could exploit this 
vulnerability by authenticating to the targeted device and issuing a specific
diagnostic test command at the CLI. An exploit could allow the attacker to 
overwrite system memory locations, which could have a negative impact on the 
stability of the device.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180117-iess

Affected Products

Vulnerable Products

This vulnerability affects Cisco Industrial Ethernet 4010 Series Switches 
running Cisco IOS Software. For information about affected software releases,
consult the Cisco bug ID(s) at the top of this advisory.

Products Confirmed Not Vulnerable

No other Cisco products are currently known to be affected by this 
vulnerability.

Workarounds

There are no workarounds that address this vulnerability.

Fixed Software

For information about fixed software releases, consult the Cisco bug ID(s) at
the top of this advisory.

When considering software upgrades, customers are advised to regularly consult
the advisories for Cisco products, which are available from the Cisco Security
Advisories and Alerts page, to determine exposure and a complete upgrade 
solution.

In all cases, customers should ensure that the devices to be upgraded contain
sufficient memory and confirm that current hardware and software 
configurations will continue to be supported properly by the new release. If 
the information is not clear, customers are advised to contact the Cisco 
Technical Assistance Center (TAC) or their contracted maintenance providers.

Exploitation and Public Announcements

The Cisco Product Security Incident Response Team (PSIRT) is not aware of any
public announcements or malicious use of the vulnerability that is described 
in this advisory.

Source

This vulnerability was found during internal security testing.

URL

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180117-iess

Revision History

Version Description 		Section 	Status 		Date

1.0 	Initial public release. 		Final 		2018-January-17

LEGAL DISCLAIMER

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF 
GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS
LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO 
CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.

A standalone copy or paraphrase of the text of this document that omits the 
distribution URL is an uncontrolled copy and may lack important information or
contain factual errors. The information in this document is intended for end 
users of Cisco products. Cisco Security Vulnerability Policy To learn about 
Cisco security vulnerability disclosure policies and publications, see the 
Security Vulnerability Policy. This document also contains instructions for 
obtaining fixed software and receiving security vulnerability information from
Cisco.

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