CVE-2017-7559

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    CVE-2017-7559

    Published: 10 Jan 2018Last Modified: 8 Jul 2026

    Summary:

    Details: In Undertow 2.x before 2.0.0.Alpha2, 1.4.x before 1.4.17.Final, and 1.3.x before 1.3.31.Final, it was found that the fix for CVE-2017-2666 was incomplete and invalid characters are still allowed in the query string and path parameters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack, or obtain sensitive information from requests other than their own.

    References: https://access.redhat.com/errata/RHSA-2017:3454, https://access.redhat.com/errata/RHSA-2017:3455, https://access.redhat.com/errata/RHSA-2017:3456, https://access.redhat.com/errata/RHSA-2017:3458, https://access.redhat.com/errata/RHSA-2018:0002, https://access.redhat.com/errata/RHSA-2018:0003, https://access.redhat.com/errata/RHSA-2018:0004, https://access.redhat.com/errata/RHSA-2018:0005, https://access.redhat.com/errata/RHSA-2018:1322, https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7559, https://issues.jboss.org/browse/UNDERTOW-1251

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0b340d10071a6b73bb0b5412974fd342afbcd9ea
    Fixed -ca20c31781dd721837775b92ad5783d742546e17

    Affected versions

    2.0.0-alpha1
    2.0.0.Alpha1

    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