CVE-2019-15488

Vulnerability

Description

Ignite Realtime Openfire, an XMPP server, versions prior to 4.4.1 are vulnerable to a reflected cross-site scripting (XSS) issue in the LDAP setup test page [3]. The testing page, which checks whether a particular user configured to be an Openfire admin can be retrieved from LDAP, did not properly sanitize user-supplied input [4]. This allowed an attacker to inject malicious scripts that would be reflected back to the user's browser. The commit that fixes the issue is in pull request #1441 [4].

Attack

Vector

An attacker could exploit this vulnerability by crafting a malicious URL containing a payload and sending it to an authenticated administrator. The XSS is triggered when the admin accesses the LDAP setup test page with the crafted input. No special privileges beyond standard web access to the admin console are required for the attacker to craft the URL, but the victim must be an authenticated admin for the XSS to execute within the admin session context [1][4].

Impact

If successfully exploited, the attacker could execute arbitrary JavaScript in the context of the administrator's browser. This could lead to session hijacking, defacement of the admin interface, or redirection to malicious sites. The impact is limited to the admin session, but could potentially allow further compromise of the Openfire server if the admin's session is stolen or if malicious actions are performed on behalf of the admin [3][4].

Mitigation

Users should upgrade to Openfire version 4.4.1 or later to remediate this vulnerability [3]. The fix is available in the commit comparing cd0a573...5e5d9e5 on GitHub [1]. No workarounds are mentioned in available references, making an upgrade the recommended course of action.