Number: AV19-087
Date: 8 May 2019
On 7 May 2019, Cisco released security updates to address a critical vulnerability affecting the Cisco Elastic Services Controller (ESC) product. The vulnerability stems from improper validation of requests made to the product’s REST API, which is a programmatic interface on the server allowing a remote client to query and run commands on the server. A remote, unauthenticated malicious actor could exploit this vulnerability by sending crafted requests to the REST API, which could then be executed on the server with administrative privileges. The vulnerability affects ESC running software release 4.1, 4.2, 4.3, and 4.4 in conjunction with the REST API being enabled. Administrators can run the following command on the ESC to determine if the REST API is enabled:
sudo netstat -tlnup | grep '8443|8080'
Output after running the command indicates that the REST API is enabled.
CCCS encourages users and administrators to review the Cisco Security Advisory and apply the necessary updates:
Note to Readers
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