UBUNTU-CVE-2017-11173

    Dashboard / Vulnerabilities / UBUNTU-CVE-2017-11173

    UBUNTU-CVE-2017-11173

    Published: 13 Jul 2017Last Modified: 18 Jul 2025
    Upstream:
    CVE-2017-11173

    Summary:

    Details: Missing anchor in generated regex for rack-cors before 0.4.1 allows a malicious third-party site to perform CORS requests. If the configuration were intended to allow only the trusted example.com domain name and not the malicious example.net domain name, then example.com.example.net (as well as example.com-example.net) would be inadvertently allowed.

    References: https://ubuntu.com/security/CVE-2017-11173, http://seclists.org/fulldisclosure/2017/Jul/22, https://github.com/cyu/rack-cors/commit/42ebe6caa8e85ffa9c8a171bda668ba1acc7a5e6, https://packetstormsecurity.com/files/143345/rack-cors-Missing-Anchor.html, https://www.cve.org/CVERecord?id=CVE-2017-11173

    Affected packages

    Package

    Name: ruby-rack-cors

    Purl: pkg:deb/ubuntu/[email protected]+deb9u1build0.16.04.1?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.4.0-1+deb9u1build0.16.04.1

    Affected versions

    0.4.0-1

    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
    UBUNTU-CVE-2017-11173 | CVE-DB