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GitHub Advisory DatabaseGHSA-9FC5-Q25C-R2WR

HistoryMay 17, 2022 - 7:57 p.m.

Jasig Java CAS Client, .NET CAS Client, and phpCAS contain URL parameter injection vulnerability

2022-05-1719:57:18

CWE-74

GitHub Advisory Database

github.com

jasig java

.net cas client

phpcas

url parameter injection

vulnerability

back-channel ticket validation

remote attackers

arbitrary web script

html

service parameter

pgturl parameter

abstracturlbasedticketvalidator

cas20serviceticketvalidator

software

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.024

Percentile

90.0%

JSON

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.

Affected configurations

Vulners

Node

jasiguportalRange<1.3.3

org.jasig.cas\casMatchclient

dotnetcasclientRange<1.0.2

VendorProductVersionCPE
jasiguportal*cpe:2.3:a:jasig:uportal:*:*:*:*:*:*:*:*
org.jasig.cas\casclientcpe:2.3:a:org.jasig.cas\:cas:client:*:*:*:*:*:*:*:*
*dotnetcasclient*cpe:2.3:a:*:dotnetcasclient:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
jasig	uportal	*	cpe:2.3:a:jasig:uportal::::::::
org.jasig.cas\	cas	client	cpe:2.3:a:org.jasig.cas\:cas:client::::::::
*	dotnetcasclient	*	cpe:2.3:a::dotnetcasclient::::::::*