#No vstack cisco router software
The image name appears in parentheses followed by the Cisco IOS Software release number and release name. If the device is running Cisco IOS Software, the system banner displays text similar to Cisco Internetwork Operating System Software or Cisco IOS Software.
To determine which Cisco IOS Software release is running on a Cisco product, administrators can log in to the device, use the show version command in the command-line interface, and then refer to the system banner that appears.
#No vstack cisco router install
Note: Switches running releases earlier than Cisco IOS Software Release 12.2(52)SE are not Smart Install capable, but they can be Smart Install clients if they support the archive download-sw privileged EXEC command.ĭetermining the Cisco IOS or IOS XE Software Release Note: Cisco devices that are configured as a Smart Install director are not affected by this vulnerability.
Note: Smart Install client functionality is enabled by default on Cisco IOS switches. Switch# show vstack config Role: Client Vstack Director IP address: 10.1.1.100 The output for Role: Client from the show vstack config command confirms that the feature is enabled on the device. The following is the output of the show vstack config command in a Cisco Catalyst Switch configured as a Smart Install client. To determine whether a Cisco IOS or IOS XE device is configured with the Smart Install client feature enabled, use the show vstack config privileged EXEC command on the Smart Install client. For information about which Cisco IOS and IOS XE Software releases are vulnerable, see the "Fixed Software" section of this advisory. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS or IOS XE Software with the Smart Install client feature enabled. All the vulnerabilities have a Security Impact Rating of "High." For a complete list of advisories and links to them, see Cisco Event Response: Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication. This advisory is part of the March 23, 2016, release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication, which includes six Cisco Security Advisories that describe six vulnerabilities. This advisory is available at the following link: There are no workarounds that address this vulnerability other than disabling Smart Install functionality on the vulnerable device. A successful exploit could cause a Cisco Catalyst switch to reload, resulting in a DoS condition.Ĭisco has released software updates that address this vulnerability. An attacker could exploit this vulnerability by sending crafted Smart Install packets to TCP port 4786. The vulnerability is due to incorrect handling of image list parameters. The Smart Install client feature in Cisco IOS and IOS XE Software contains a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
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