Nginx Core Dump

testhigh
log source: nginxauthor Florian Roth (Nextron Systems)date 2021-05-31
01

description

What this is, in brief.

Detects a core dump of a crashing Nginx worker process, which could be a signal of a serious problem or exploitation attempts.

02

tags

attack.impactattack.t1499.004
03

rule source (YAML)

title: Nginx Core Dump
id: 59ec40bb-322e-40ab-808d-84fa690d7e56
status: test
description: Detects a core dump of a crashing Nginx worker process, which could be a signal of a serious problem or exploitation attempts.
references:
    - https://docs.nginx.com/nginx/admin-guide/monitoring/debugging/#enabling-core-dumps
    - https://www.x41-dsec.de/lab/advisories/x41-2021-002-nginx-resolver-copy/
author: Florian Roth (Nextron Systems)
date: 2021-05-31
modified: 2023-05-08
tags:
    - attack.impact
    - attack.t1499.004
logsource:
    service: nginx
detection:
    keywords:
        - 'exited on signal 6 (core dumped)'
    condition: keywords
falsepositives:
    - Serious issues with a configuration or plugin
level: high
04

detects techniques (1)

ATT&CK techniques this enables or maps to.

05

references

External citations — patches, advisories, analysis.