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TI-2017-14410 Aliases CVE-2017-1000071GHSA-fwrj-8jg7-7jr6

Jasig phpCAS version 1.3.4 is vulnerable to an authentication bypass in the validateCAS20…

Priority MEDIUM 41CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

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.

Why it matters now

EPSS 0.03542 89th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apereo:phpcas:1.3.4:*:*:*:*:*:*:*1.3.4VulnerableApereo
  • cpe:2.3:a:apereo:phpcas:1.3.4:*:*:*:*:*:*:* Versions 1.3.4 Vulnerable ·Apereo

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-1000071
  2. 2026-10-03 Alias added: GHSA-fwrj-8jg7-7jr6

References

Advisory 2

  • TI-2014-03410 A URL parameter injection vulnerability was found in the back-channel ticket validation… CVSS 3.1CRITICAL 9.8
  • TI-2022-18743 Service Hostname Discovery Exploitation in phpCAS CVSS 3.1HIGH 8.0
  • TI-2010-03516 Directory traversal vulnerability in the callback function in client.php in phpCAS before… CVSS 2.0MEDIUM 6.4
  • TI-2012-04698 phpCAS before 1.3.2 does not verify that the server hostname matches a domain name in the… CVSS 2.0MEDIUM 5.8
  • TI-2012-01010 Improper privilege management in jasig project phpCAS CVSS 3.1MEDIUM 5.3
  • TI-2012-01011 Information disclosure in Jasig Project php-pear-CAS CVSS 3.1MEDIUM 5.5
See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences