cisco-sa-ie1k-uxq86Lnx: Cisco Industrial Ethernet 1000 Series Switches Denial of Service Vulnerability
A vulnerability in the handling of management plane packets by Cisco Industrial Ethernet (IE) 1000 Series Switches could allow an unauthenticated, remote attacker to cause the device manager, SSH, or API to become inaccessible.This vulnerability is due to insufficient protection against management plane flooding attacks. An attacker could exploit this vulnerability by sending a high rate of ICMP, SSH, or HTTP traffic to an affected device. A successful exploit could allow the attacker to cause the CPU of the device to increase, resulting in a denial of service (DoS) condition on the device manager web GUI, SSH, or API. Data traffic through the device is not affected.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ie1k-uxq86Lnx
Affected Software
Event History
Frequently Asked Questions
What access does an attacker need to trigger the denial of service?
An attacker can exploit the issue remotely without authentication by sending a high rate of ICMP, SSH, or HTTP traffic to an affected device.
Which device functions are disrupted, and does this interrupt forwarded network traffic?
The device manager web GUI, SSH service, and API can become inaccessible because management-plane CPU utilization increases. Data traffic transiting the switch is not affected.
Is there a mitigation for environments that cannot immediately apply the update?
No workaround is available that addresses this vulnerability. Cisco has released software updates to remediate it.