CVE-2022-39379CWE-502

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

Low · published November 2, 2022

CVSS v3.1
3.1
EPSS
45%
Percentile
98.8
In the wild
Unconfirmed
What it is

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`.

The record
Technical detail
CVSS v3.1
3.1 · LOW
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.44983 · 98.8th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2022-11-02T00:00Z
EPSS history
Timeline
  • 02 NOV 00:00Z
    Fluentd vulnerable to remote code execution due to insecure deserialization (in non-default configuration)
    cvelistv5