Vulnerability Details CVE-2022-39379
Fluentd collects events from various data sources and writes them to files, RDBMS, NoSQL, IaaS, SaaS, Hadoop and so on. 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. This issue was patched in version 1.15.3. As a workaround do not use `FLUENT_OJ_OPTION_MODE=object`.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.089
EPSS Ranking 92.1%
CVSS Severity
CVSS v3 Score 3.1
References
- https://github.com/fluent/fluentd/commit/48e5b85dab1b6d4c273090d538fc11b3f2fd8135
- https://github.com/fluent/fluentd/security/advisories/GHSA-fppq-mj76-fpj2
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MYD5QV66OLDHES6IKVYYM3Y3YID3VVCO/
- https://github.com/fluent/fluentd/commit/48e5b85dab1b6d4c273090d538fc11b3f2fd8135
- https://github.com/fluent/fluentd/security/advisories/GHSA-fppq-mj76-fpj2
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MYD5QV66OLDHES6IKVYYM3Y3YID3VVCO/
Products affected by CVE-2022-39379
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cpe:2.3:a:fluentd:fluentd:1.13.2
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cpe:2.3:a:fluentd:fluentd:1.13.3
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cpe:2.3:a:fluentd:fluentd:1.14.1
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cpe:2.3:a:fluentd:fluentd:1.14.2
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cpe:2.3:a:fluentd:fluentd:1.14.3
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cpe:2.3:a:fluentd:fluentd:1.14.4
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cpe:2.3:a:fluentd:fluentd:1.14.5
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cpe:2.3:a:fluentd:fluentd:1.14.6
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cpe:2.3:a:fluentd:fluentd:1.15.0
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cpe:2.3:a:fluentd:fluentd:1.15.1
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cpe:2.3:a:fluentd:fluentd:1.15.2
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cpe:2.3:o:fedoraproject:fedora:37