Overview
- 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.
- Source
- cve@mitre.org
- NVD status
- Modified
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 9.8
- Impact score
- 5.9
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity
- CRITICAL
CVSS 2.0
- Type
- Primary
- Base score
- 7.5
- Impact score
- 6.4
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
- nvd@nist.gov
- CWE-74
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:apereo:.net_cas_client:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D0D3881B-F7F5-4E0F-B76F-EFA42ECB0E75",
"versionEndExcluding": "1.0.2"
},
{
"criteria": "cpe:2.3:a:apereo:java_cas_client:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "3A6BA56C-70FF-46A7-8648-E412BEA54EB9",
"versionEndExcluding": "3.3.2"
},
{
"criteria": "cpe:2.3:a:apereo:phpcas:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "949AB748-0980-4F16-8031-42A413597117",
"versionEndExcluding": "1.3.3"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "16F59A04-14CF-49E2-9973-645477EA09DA"
},
{
"criteria": "cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FF47C9F0-D8DA-4B55-89EB-9B2C9383ADB9"
}
],
"operator": "OR"
}
]
}
]