要点
- CVE-2022-39379 は fluentd, fluentd (fluentd) に影響する深刻度「緊急」 (CVSS 9.8) の脆弱性です。
- 今後30日間に悪用される確率（EPSS）：45.0%（全脆弱性の 98.8% より高い）。
- 対処：1.15.3 以降に更新してください。
| パッケージ | 影響を受けるバージョン | 修正済みバージョン |
|---|
| fluentd RubyGems | ≥ 1.13.2, < 1.15.3
| 1.15.3
|
| fluentd | ≥ 1.13.2, < 1.15.3
| 1.15.3
|
概要
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
NVD の説明
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`.
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