GHSA-gcj7-j438-hjj2

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    GHSA-gcj7-j438-hjj2

    Published: 7 Apr 2022Last Modified: 21 Aug 2024

    Summary: Smokescreen SSRF via deny list bypass

    Details: The primary use case for Smokescreen is to prevent server-side request forgery (SSRF) attacks in which external attackers leverage the behavior of applications to connect to or scan internal infrastructure. Smokescreen also offers an option to deny access to additional (e.g., external) URLs by way of a deny list. There was an issue in Smokescreen that made it possible to bypass the deny list feature by appending a dot to the end of user-supplied URLs, or by providing input in a different letter case. ### Recommendation Upgrade Smokescreen to version 0.0.3 or later. ### Acknowledgements Thanks to [Grzegorz Niedziela](https://twitter.com/gregxsunday) for reporting the issue. ### For more information Email us at [email protected]

    References: https://github.com/stripe/smokescreen/security/advisories/GHSA-gcj7-j438-hjj2, https://nvd.nist.gov/vuln/detail/CVE-2022-24825, https://github.com/stripe/smokescreen/commit/fafb6ae48c6c40aa011d87b61306abc48db8797b, github.com/stripe/smokescreen

    Affected packages

    Package

    Name: github.com/stripe/smokescreen

    Purl: pkg:golang/github.com/stripe/smokescreen

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -0.0.3

    Affected versions

    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-gcj7-j438-hjj2 | CVE-DB