CVE-2014-4172
CRITICAL severity · CVSS 9.8 · Injection
9.8CVSS CRITICAL
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)6%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://github.com/Jasig/dotnet-cas-client/commit/f0e030014fb7a39e5f38469f43199dc590fd0e8d ↗
Additional information
- NVD record
- https://github.com/Jasig/dotnet-cas-client/commit/f0e030014fb7a39e5f38469f43199dc590fd0e8dPatch
- https://github.com/Jasig/java-cas-client/commit/ae37092100c8eaec610dab6d83e5e05a8ee58814Patch
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/137182.htmlAdvisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=759718Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1131350Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/95673Advisory
- https://github.com/Jasig/phpCAS/blob/master/docs/ChangeLogAdvisory
- https://github.com/Jasig/phpCAS/pull/125Advisory