A vulnerability in the web-based management interface of Cisco Secure Firewall Management Center (FMC) Software, formerly Firepower Management Center Software, could allow an authenticated, remote attacker to inject arbitrary HTML content into a device-generated document.

This vulnerability is due to improper validation of user-supplied data. An attacker could exploit this vulnerability by submitting malicious content to an affected device and using the device to generate a document that contains sensitive information. A successful exploit could allow the attacker to alter the standard layout of the device-generated documents, access arbitrary files from the underlying operating system, and conduct server-side request forgery (SSRF) attacks. To successfully exploit this vulnerability, an attacker would need valid credentials for a user account with policy-editing permissions, such as Network Admin, Intrusion Admin, or any custom user role with the same capabilities.

Cisco Systems, Inc. AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

Cisco Systems, Inc. CWE-20

Cisco Systems, Inc. https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-html-inj-nfJeYHxz [No types assigned]

Cisco Systems, Inc. https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-M446vbEO [No types assigned]

Cisco Systems, Inc. https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75300 [No types assigned]