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CVE-2022-39379— Fluentd vulnerable to remote code execution due to insecure deserialization (in non-default configuration)

Quick assessment

Affected
fluent fluentd
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Fluentd是Fluentd开源的一个开源日志收集器。从各种数据源收集事件，并将其写入文件、RDBMS、NoSQL、IaaS、SaaS、Hadoop等。 Fluentd 存在安全漏洞。攻击者利用该漏洞通过特制的JSON有效载荷执行任意代码。

CVSS 3.1 · Low EPSS 44.98% · P99

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-39379

Vulnerability Information
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Vulnerability Title
Fluentd vulnerable to remote code execution due to insecure deserialization (in non-default configuration)
Source: CVE Program / CVE List V5
Vulnerability Description
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`.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
Fluentd 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Fluentd是Fluentd开源的一个开源日志收集器。从各种数据源收集事件，并将其写入文件、RDBMS、NoSQL、IaaS、SaaS、Hadoop等。 Fluentd 存在安全漏洞。攻击者利用该漏洞通过特制的JSON有效载荷执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
fluent fluentd >= 1.13.2, < 1.15.3 -

II. Public POCs for CVE-2022-39379

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III. Intelligence Information for CVE-2022-39379

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Patches & Fixes for CVE-2022-39379 (1)

Vendor Advisories for CVE-2022-39379 (1)

Mailing List Discussions for CVE-2022-39379 (1)

IV. Related Vulnerabilities

Same product: fluentd
Same vendor: fluent
Same weakness: CWE-502

V. Comments for CVE-2022-39379

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