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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.1213 Cisco Industrial Ethernet 4000 and Ethernet 5000 Series Switches ICMP IPv4 Packet Corruption Vulnerability 16 May 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Cisco Industrial Ethernet 4000 Series Switches Cisco Industrial Ethernet 5000 Series Switches Publisher: Cisco Systems Operating System: Cisco Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2016-1399 Original Bulletin: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160513-ies - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco Security Advisory Cisco Industrial Ethernet 4000 and Ethernet 5000 Series Switches ICMP IPv4 Packet Corruption Vulnerability Medium Advisory ID: cisco-sa-20160513-ies Published: 2016 May 13 16:30 GMT Version 1.0: Final CVSS Score: Base - 5.0 Workarounds: No workarounds available Cisco Bug IDs: CSCuy13431 CVE-2016-1399 CWE-399 Download CVRF Download PDF Email Summary A vulnerability in the packet processing microcode of Cisco Industrial Ethernet 4000 Series Switches and Cisco Industrial Ethernet 5000 Series Switches could allow an unauthenticated, remote attacker to corrupt packets enqueued on the device for further processing. The vulnerability is due to improper processing of some ICMP IPv4 packets. An attacker could exploit this vulnerability by sending ICMP IPv4 packets to an affected device. A successful exploit could allow an attacker to corrupt the packet enqueued immediately after the packet sent. This may impact control traffic to the device itself (Address Resolution Protocol (ARP) traffic) or traffic transiting the device. Cisco has released software updates that address this vulnerability. Workarounds that mitigate this vulnerability are not available. This advisory is available at the following link: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160513-ies Affected Products Vulnerable Products The following Cisco Industrial Ethernet Series Switches are vulnerable: Cisco Industrial Ethernet 4000 Series Switches when running Cisco IOS Software Releases 15.2(2)EA, 15.2(2)EA1, 15.2(2)EA2, or 15.2(4)EA Cisco Industrial Ethernet 5000 Series Switches when running Cisco IOS Software Releases 15.2(2)EB or 15.2(2)EB1 Products Confirmed Not Vulnerable No other Cisco products are currently known to be affected by this vulnerability. Cisco Industrial Ethernet 4000 Series Switches and Cisco Industrial Ethernet 5000 Series Switches running any Cisco IOS Software release other than those listed in the Vulnerable Products section are not affected by this vulnerability. Workarounds Workarounds are not available. Fixed Software Fixed releases that resolve this vulnerability are as follows: Cisco Industrial Ethernet 4000 Series Switches: 15.2(2)EA3 and 15.2(4)EA1 Cisco Industrial Ethernet 5000 Series Switches: 15.2(2)EB2 When considering software upgrades, customers are advised to consult the Cisco Security Advisories and Responses archive at http://www.cisco.com/go/psirt and review subsequent advisories 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. URL http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160513-ies Revision History Version Description Section Status Date 1.0 Initial public release. - Final 2016-May-13 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. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBVzkmVH6ZAP0PgtI9AQKj7A//TRPoxXE7Mfy4kUx2VcDaMlsucd6Jx9vZ +aws3WtV2Ia6lM6HYkyfOHa8cyihhldL6ODSOdmv+gQWnQC52jbdEMnNsSwfm17t CO33WnI/0mQ2X5MEQyU7d1IVviEl1/TNdMPvOff87igremas32xXPdTJ1wDv2ZMW bNSepY1g/YDAJygRbMEE+EVRzu+X7UZoiFixrWedkQFZh07yFCLWb5ajz50likkV WQJSlfpRrS6NrkjMV1xhduCey/g9/4LIMRMqoPTa7N76wsorI5zCtUPQnf35dk1n 1KbHIFxnJFx9tg0MbsHYKjHKwVP/az+wxKATsZdzwM4JNWPbdJ5PfbOXjbKchsh5 //NVkLWV4RLdcFhKNZ62tNWD6d86Ex3bnsx7p9gntOsofbrw3fkZzW7+EJmBdNGk 4mC0JGm31m88BKhtIc3L1cpAUI6dYryGZRdLRAdHkoRe2zaF0Xcnuv+xnrchtw7j IDcW5bH0s9i4jMFdA1fYWnr3vGirbJPC5hsyWYJfQpG7kvZFpyk4Po2TOoKjRuLA +RAUayW0vWYNSAQdMhTe1K7Rlwysk0JgYMPg6QXfrtB8GxfpxXIPjVh6MRiWqwJi HmXp63ZaLqpsG5PpDmv772D9A07yZFkv7CpP3iK0PKX8xj6LKenrGaiVx/TZUXMO NwOXOARQ1rk= =u45J -----END PGP SIGNATURE-----