Headline
GHSA-fppq-mj76-fpj2: fluentd vulnerable to remote code execution due to insecure deserialization (in non-default configuration)
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
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
- GHSA-fppq-mj76-fpj2
- fluent/fluentd@48e5b85
Related news
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`.