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    CVE-2021-33564

    An argument injection vulnerability in the Dragonfly gem before 1.4.0 for Ruby allows remote attackers to read and write to arbitrary files via a crafted URL when the verify_url option is disabled. This may lead to code execution. The problem occurs because the generate and process features mishandle use of the ImageMagick convert utility.

    Published:May 29, 2021
    Last Modified:Nov 21, 2024
    EPS:May 29, 2021
    EPSS Score:0.91228
    CVSS Score:9.8

    Affected Products

    Vendor
    Dragonfly Project
    Product
    Dragonfly

    Exploits

    https://github.com/mlr0p/CVE-2021-33564https://raw.githubusercontent.com/projectdiscovery/nuclei-templates/master/cves/2021/CVE-2021-33564.yamlhttps://zxsecurity.co.nz/research/argunment-injection-ruby-dragonfly/https://github.com/mlr0p/CVE-2021-33564https://raw.githubusercontent.com/projectdiscovery/nuclei-templates/master/cves/2021/CVE-2021-33564.yamlhttps://zxsecurity.co.nz/research/argunment-injection-ruby-dragonfly/https://github.com/dorkerdevil/CVE-2021-33564https://github.com/mlr0p/CVE-2021-33564

    References

    https://github.com/markevans/dragonfly/commit/25399297bb457f7fcf8e3f91e85945b255b111b5
    https://github.com/markevans/dragonfly/compare/v1.3.0...v1.4.0
    https://github.com/markevans/dragonfly/issues/513
    https://github.com/mlr0p/CVE-2021-33564
    https://raw.githubusercontent.com/projectdiscovery/nuclei-templates/master/cves/2021/CVE-2021-33564.yaml
    https://zxsecurity.co.nz/research/argunment-injection-ruby-dragonfly/
    https://github.com/markevans/dragonfly/commit/25399297bb457f7fcf8e3f91e85945b255b111b5
    https://github.com/markevans/dragonfly/compare/v1.3.0...v1.4.0
    https://github.com/markevans/dragonfly/issues/513
    https://github.com/mlr0p/CVE-2021-33564
    https://raw.githubusercontent.com/projectdiscovery/nuclei-templates/master/cves/2021/CVE-2021-33564.yaml
    https://zxsecurity.co.nz/research/argunment-injection-ruby-dragonfly/

    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