Cisco Security Advisory
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AV:N/AC:L/Au:N/C:N/I:P/A:N/E:H/RL:OF/RC:C
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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
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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.
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Workarounds are not available.
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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
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.
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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.
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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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Show LessVersion Description Section Status Date 1.0 Initial public release. — Final 2016-May-13
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