CVE-2019-1643: XSS in Cisco Prime Infrastructure

An attacker can exploit CVE-2019-1643 by crafting a malicious link and persuading a user of the Prime Infrastructure web interface to click it. Upon clicking, the attacker's script executes within the user's browser, potentially allowing them to steal session cookies, redirect the user to a phishing site, or deface the Prime Infrastructure interface. The ability to execute arbitrary script code could allow an attacker to gain unauthorized access to network configuration data and potentially compromise connected devices. The lack of authentication required for exploitation significantly expands the attack surface.

1. Reserved2018-12-06
2. Published2019-01-23
3. Modified2024-11-21
4. EPSS updated2026-04-02

The primary mitigation for CVE-2019-1643 is to upgrade to a patched version of Cisco Prime Infrastructure. Unfortunately, a specific fixed version is not provided in the CVE data. As a temporary workaround, implement strict input validation on all user-supplied data within the Prime Infrastructure web interface. Consider deploying a Web Application Firewall (WAF) with XSS filtering rules to block malicious requests. Regularly review Prime Infrastructure logs for suspicious activity, particularly unusual URL patterns or script execution attempts. After applying mitigations, confirm by testing the Prime Infrastructure interface with various input scenarios to ensure no XSS vulnerabilities remain.