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    CVE-2017-1000071

    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.

    Published:Jul 13, 2017
    Last Modified:Apr 20, 2025
    EPS:Jul 13, 2017
    EPSS Score:0.00249
    CVSS Score:8.1

    Affected Products

    Vendor
    Apereo
    Product
    Phpcas

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-287 Improper Authentication

    Related CVEs

    CVE-2022-39369 (CVSS 8) — phpCAS is an authentication library that allows PHP applications to easily authenticate users via a Central Au…
    CVE-2012-1105 (CVSS 5.5) — An Information Disclosure vulnerability exists in the Jasig Project php-pear-CAS 1.2.2 package in the /tmp dir…
    CVE-2012-1104 (CVSS 5.3) — A Security Bypass vulnerability exists in the phpCAS 1.2.2 library from the jasig project due to the way proxy…
    CVE-2014-4172 (CVSS 9.8) — A URL parameter injection vulnerability was found in the back-channel ticket validation step of the CAS protoc…
    CVE-2012-5583 (CVSS 5.8) — phpCAS before 1.3.2 does not verify that the server hostname matches a domain name in the subject's Common Nam…
    CVE-2010-3690 (CVSS 4.3) — Multiple cross-site scripting (XSS) vulnerabilities in phpCAS before 1.1.3, when proxy mode is enabled, allow …
    CVE-2010-3691 (CVSS 3.3) — PGTStorage/pgt-file.php in phpCAS before 1.1.3, when proxy mode is enabled, allows local users to overwrite ar…
    CVE-2010-3692 (CVSS 6.4) — Directory traversal vulnerability in the callback function in client.php in phpCAS before 1.1.3, when proxy mo…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High