CVE-2014-4172 Information

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://lists.fedoraproject.org/pipermail/package-announce/2014-August/137182.html https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=759718 https://bugzilla.redhat.com/show_bug.cgi?id=1131350 https://exchange.xforce.ibmcloud.com/vulnerabilities/95673 https://github.com/Jasig/dotnet-cas-client/commit/f0e030014fb7a39e5f38469f43199dc590fd0e8d https://github.com/Jasig/java-cas-client/commit/ae37092100c8eaec610dab6d83e5e05a8ee58814 https://github.com/Jasig/phpCAS/blob/master/docs/ChangeLog https://github.com/Jasig/phpCAS/pull/125 https://issues.jasig.org/browse/CASC-228 https://www.debian.org/security/2014/dsa-3017.en.html https://www.mail-archive.com/cas-user@lists.jasig.org/msg17338.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8