CVE-2017-12868

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    CVE-2017-12868

    Published: 1 Sept 2017Last Modified: 8 Jul 2026

    Summary:

    Details: The secureCompare method in lib/SimpleSAML/Utils/Crypto.php in SimpleSAMLphp 1.14.13 and earlier, when used with PHP before 5.6, allows attackers to conduct session fixation attacks or possibly bypass authentication by leveraging missing character conversions before an XOR operation.

    References: https://lists.debian.org/debian-lts-announce/2017/12/msg00007.html, https://lists.debian.org/debian-lts-announce/2018/06/msg00017.html, https://github.com/simplesamlphp/simplesamlphp/commit/4bc629658e7b7d17c9ac3fe0da7dc5df71f1b85e, https://simplesamlphp.org/security/201705-01

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    v1.14.13
    v1.14.12
    v1.14.2
    v1.14.10
    v1.14.11
    v1.14.9
    v1.14.8
    v1.14.7
    v1.14.6
    v1.14.5
    v1.14.4
    v1.14.3
    v1.14.1
    v1.14.0
    v1.14.0-rc1

    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
    CVE-2017-12868 | CVE-DB