Jasig Java CAS Client, .NET CAS Client, and phpCAS contain URL parameter injection vulnerability
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 software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | jasig/phpcas | < 1.3.3 | 1.3.3 |
| Java / Kotlin (Maven) | org.jasig.cas:cas-client | < 3.3.2 | 3.3.2 |
| .NET (NuGet) | DotNetCasClient | < 1.0.2 | 1.0.2 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2014-4172
- https://github.com/Jasig/phpCAS/pull/125
- https://github.com/Jasig/dotnet-cas-client/commit/f0e030014fb7a39e5f38469f43199dc590fd0e8d
- https://github.com/Jasig/java-cas-client/commit/ae37092100c8eaec610dab6d83e5e05a8ee58814
- https://github.com/apereo/java-cas-client/commit/266eba7c2d870d70caba6f41576d19f2fcc869b1
- 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/phpCAS/blob/master/docs/ChangeLog
- 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
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/137182.html
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-74- Platform
- Composer, Java / Kotlin (Maven), .NET (NuGet)
- Package
jasig/phpcas, org.jasig.cas:cas-client, DotNetCasClient- Disclosed
- 17.05.2022
- Updated
- 11.10.2026 11:18
Sources and licenses
OSV / GitHub Advisory Database - GHSA-9fc5-q25c-r2wr - CC BY 4.0
Vulnerability history: DotNetCasClient
All published vulnerabilities of this package (.NET (NuGet)), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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