CVE-2014-4172

Description

A URL parameter injection vulnerability was found in the back-channel ticket validation step of the CAS protocol in Jasig Java CAS Client before 3.3.2, .NET CAS Client before 1.0.2, and phpCAS before 1.3.3 that allow remote attackers to inject arbitrary web script or HTML via the (1) service parameter to validation/AbstractUrlBasedTicketValidator.java or (2) pgtUrl parameter to validation/Cas20ServiceTicketValidator.java.

How to fix CVE-2014-4172

To remediate CVE-2014-4172, upgrade the affected package to a fixed version below.

—upgrade to 1.3.3-1 or later
—upgrade to 1.3.1-4+deb7u1 or later
—upgrade to 3.3.2 or later
—upgrade to 1.0.2 or later
—upgrade to 1.3.3 or later

Is CVE-2014-4172 being exploited?

Moderate — EPSS is 6.1%. Track this CVE but it's not at the top of the prioritisation list.

Affected packages (5)

from 0, < 1.3.3-1
from 0, < 1.3.1-4+deb7u1
from 0, < 3.3.2
from 0, < 1.0.2
from 0, < 1.3.3

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	CRITICAL9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H