GHSA-gwfg-cqmg-cf8f

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    GHSA-gwfg-cqmg-cf8f

    Published: 24 May 2022Last Modified: 29 May 2025

    Summary: WEBRick vulnerable to HTTP Request/Response Smuggling

    Details: An issue was discovered in Ruby through 2.5.8, 2.6.x through 2.6.6, and 2.7.x through 2.7.1. WEBrick, a simple HTTP server bundled with Ruby, had not checked the transfer-encoding header value rigorously. An attacker may potentially exploit this issue to bypass a reverse proxy (which also has a poor header check), which may lead to an HTTP Request Smuggling attack.

    References: https://nvd.nist.gov/vuln/detail/CVE-2020-25613, https://github.com/ruby/webrick/commit/076ac636bf48b7a492887ce4de7041de23e6c00d, https://github.com/ruby/webrick/commit/7618049fa57ddad2efff2a7bc7dad7d2d8a311b1, https://github.com/ruby/webrick/commit/8946bb38b4d87549f0d99ed73c62c41933f97cc7, https://github.com/ruby/webrick/commit/af2efdcdf826f25592202d187c53963e7932e4b9, https://hackerone.com/reports/965267, https://github.com/ruby/webrick, https://github.com/rubysec/ruby-advisory-db/blob/master/gems/webrick/CVE-2020-25613.yml, https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PFP3E7KXXT3H3KA6CBZPUOGA5VPFARRJ, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTZURYROG3FFED3TYCQOBV66BS4K6WOV, https://lists.fedoraproject.org/archives/list/[email protected]/message/PFP3E7KXXT3H3KA6CBZPUOGA5VPFARRJ, https://lists.fedoraproject.org/archives/list/[email protected]/message/YTZURYROG3FFED3TYCQOBV66BS4K6WOV, https://security.gentoo.org/glsa/202401-27, https://security.netapp.com/advisory/ntap-20210115-0008, https://www.ruby-lang.org/en/news/2020/09/29/http-request-smuggling-cve-2020-25613

    Affected packages

    Package

    Name: webrick

    Purl: pkg:gem/webrick

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 1.6.0
    Fixed -1.6.1

    Affected versions

    1.6.0

    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
    GHSA-gwfg-cqmg-cf8f | CVE-DB