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122 lines
3.7 KiB
Markdown
122 lines
3.7 KiB
Markdown
# 8086 - Pentesting InfluxDB
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{{#include ../banners/hacktricks-training.md}}
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## Basic Information
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**InfluxDB** is an open-source **time series database (TSDB)** developed by InfluxData. TSDBs are optimized for storing and serving time series data, which consists of timestamp-value pairs. Compared to general-purpose databases, TSDBs provide significant improvements in **storage space** and **performance** for time series datasets. They employ specialized compression algorithms and can be configured to automatically remove old data. Specialized database indices also enhance query performance.
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**Default port**: 8086
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```
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PORT STATE SERVICE VERSION
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8086/tcp open http InfluxDB http admin 1.7.5
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```
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## Enumeration
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From a pentester point of view this another database that could be storing sensitive information, so it's interesting to know how to dump all the info.
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### Authentication
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InfluxDB might require authentication or not
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```bash
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# Try unauthenticated
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influx -host 'host name' -port 'port #'
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> use _internal
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```
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If you **get an error like** this one: `ERR: unable to parse authentication credentials` it means that it's **expecting some credentials**.
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```
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influx –username influx –password influx_pass
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```
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There was a vulnerability influxdb that allowed to bypass the authentication: [**CVE-2019-20933**](https://github.com/LorenzoTullini/InfluxDB-Exploit-CVE-2019-20933)
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### Manual Enumeration
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The information of this example was taken from [**here**](https://oznetnerd.com/2017/06/11/getting-know-influxdb/).
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#### Show databases
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The found databases are `telegraf` and `internal` (you will find this one everywhere)
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```bash
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> show databases
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name: databases
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name
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----
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telegraf
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_internal
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```
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#### Show tables/measurements
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The [**InfluxDB documentation**](https://docs.influxdata.com/influxdb/v1.2/introduction/getting_started/) explains that **measurements** in InfluxDB can be paralleled with SQL tables. The nomenclature of these **measurements** is indicative of their respective content, each housing data relevant to a particular entity.
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```bash
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> show measurements
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name: measurements
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name
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----
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cpu
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disk
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diskio
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kernel
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mem
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processes
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swap
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system
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```
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#### Show columns/field keys
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The field keys are like the **columns** of the database
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```bash
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> show field keys
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name: cpu
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fieldKey fieldType
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-------- ---------
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usage_guest float
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usage_guest_nice float
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usage_idle float
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usage_iowait float
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name: disk
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fieldKey fieldType
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-------- ---------
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free integer
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inodes_free integer
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inodes_total integer
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inodes_used integer
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[ ... more keys ...]
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```
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#### Dump Table
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And finally you can **dump the table** doing something like
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```bash
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select * from cpu
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name: cpu
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time cpu host usage_guest usage_guest_nice usage_idle usage_iowait usage_irq usage_nice usage_softirq usage_steal usage_system usage_user
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---- --- ---- ----------- ---------------- ---------- ------------ --------- ---------- ------------- ----------- ------------ ----------
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1497018760000000000 cpu-total ubuntu 0 0 99.297893681046 0 0 0 0 0 0.35105315947842414 0.35105315947842414
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1497018760000000000 cpu1 ubuntu 0 0 99.69909729188728 0 0 0 0 0 0.20060180541622202 0.10030090270811101
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```
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> [!WARNING]
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> In some testing with the authentication bypass it was noted that the name of the table needed to be between double quotes like: `select * from "cpu"`
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### Automated Authentication
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```bash
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msf6 > use auxiliary/scanner/http/influxdb_enum
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```
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{{#include ../banners/hacktricks-training.md}}
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