K14812883 : BIG-IP ASM XSS vulnerability CVE-2019-6607

Security Advisory Description

This is a stored cross-site scripting (XSS) vulnerability in an ASM violation viewed in the Configuration utility. In the worst case, an attacker can store a CSRF, which results in code execution as the admin user. (CVE-2019-6607)

The user levels that can store this attack are ASM Administrator, Resource Administrator, and Administrator. The ASM Administrator cannot access the Advanced Shell, but can use this flaw to store an attack that will execute shell commands when an admin with Advanced Shell access browses to the particular BIG-IP ASM Configuration utility page hosting the exploit code. While the stored CSRF is possible in non-appliance and appliance mode systems, the execution of shell commands is not possible if the system is configured in appliance mode because there is no shell available.

Impact

An attacker can inject a malicious script into the BIG-IP ASM Configuration utility. Additionally, an attacker can trick a BIG-IP ASM Configuration utility user into executing malicious code.