CVE-2017-1000071

8.1 HIGH

Published: July 17, 2017 Modified: May 13, 2026

Description

Jasig phpCAS version 1.3.4 is vulnerable to an authentication bypass in the validateCAS20 function when configured to authenticate against an old CAS server.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://www.securityfocus.com/bid/99609

Source: cve@mitre.org

Third Party Advisory VDB Entry

https://github.com/Jasig/phpCAS/blob/master/docs/ChangeLog

Source: cve@mitre.org

Third Party Advisory

https://github.com/Jasig/phpCAS/issues/228

Source: cve@mitre.org

Third Party Advisory

http://www.securityfocus.com/bid/99609

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory VDB Entry

https://github.com/Jasig/phpCAS/blob/master/docs/ChangeLog

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://github.com/Jasig/phpCAS/issues/228

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

6 reference(s) from NVD

Quick Stats

CVSS v3 Score

8.1 / 10.0

EPSS (Exploit Probability)

3.5%

88th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-287

Affected Vendors

apereo

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