A vulnerability in the API gateway of the Cisco Digital Network Architecture (DNA) Center could allow an unauthenticated, remote attacker to bypass authentication and access critical services. The vulnerability is due to a failure to normalize URLs prior to servicing requests. An attacker could exploit this vulnerability by submitting a crafted URL designed to exploit the issue. There are no workarounds that address this vulnerability. This vulnerability affects DNA Center Software Releases prior to 1.1.2 and later. Customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco reseller or partner.”]
Source: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180516-dna2