CVE-2017-0904

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    CVE-2017-0904

    Published: 13 Nov 2017Last Modified: 8 Jul 2026

    Summary:

    Details: The private_address_check ruby gem before 0.4.0 is vulnerable to a bypass due to use of Ruby's Resolv.getaddresses method, which is OS-dependent and should not be relied upon for security measures, such as when used to blacklist private network addresses to prevent server-side request forgery.

    References: https://github.com/jtdowney/private_address_check/commit/58a0d7fe31de339c0117160567a5b33ad82b46af, https://edoverflow.com/2017/ruby-resolv-bug/, https://github.com/jtdowney/private_address_check/issues/1, https://hackerone.com/reports/287835, https://hackerone.com/reports/287245

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -e76cadab736ee5c30d7d4c5220db9d42488d1e1e

    Affected versions

    v0.3.0

    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-2017-0904 | CVE-DB