GHSA-fppq-mj76-fpj2

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    GHSA-fppq-mj76-fpj2

    Published: 2 Nov 2022Last Modified: 21 Feb 2024

    Summary: fluentd vulnerable to remote code execution due to insecure deserialization (in non-default configuration)

    Details: ### Impact A remote code execution (RCE) vulnerability in non-default configurations of Fluentd allows unauthenticated attackers to execute arbitrary code via specially crafted JSON payloads. Fluentd setups are only affected if the environment variable `FLUENT_OJ_OPTION_MODE` is explicitly set to `object`. Please note: The option FLUENT_OJ_OPTION_MODE was introduced in Fluentd version 1.13.2. Earlier versions of Fluentd are not affected by this vulnerability. ### Patches v1.15.3 ### Workarounds Do not use `FLUENT_OJ_OPTION_MODE=object`. ### References * GHSL-2022-067

    References: https://github.com/fluent/fluentd/security/advisories/GHSA-fppq-mj76-fpj2, https://nvd.nist.gov/vuln/detail/CVE-2022-39379, https://github.com/fluent/fluentd/commit/48e5b85dab1b6d4c273090d538fc11b3f2fd8135, https://github.com/fluent/fluentd, https://github.com/rubysec/ruby-advisory-db/blob/master/gems/fluentd/CVE-2022-39379.yml, https://lists.fedoraproject.org/archives/list/[email protected]/message/MYD5QV66OLDHES6IKVYYM3Y3YID3VVCO

    Affected packages

    Package

    Name: fluentd

    Purl: pkg:gem/fluentd

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 1.13.2
    Fixed -1.15.3

    Affected versions

    1.13.2
    1.13.3

    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