> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/pt-br/ports-and-services/influxdb-8086.md).

# InfluxDB - 8086

A porta 8086 expõe a versão 1.7.5 do InfluxDB. O alvo é afetado por um problema de bypass de autenticação do InfluxDB:

<figure><img src="/files/5f55b9af6acc2db9745f9147688edc7c8d7f1700" alt=""><figcaption></figcaption></figure>

**Vulnerabilidade:**[CVE-2019-20933](https://nvd.nist.gov/vuln/detail/CVE-2019-20933)

{% embed url="<https://github.com/LorenzoTullini/InfluxDB-Exploit-CVE-2019-20933>" %}

{% hint style="info" %}
Esta vulnerabilidade permite burlar a autenticação explorando um token JWT cujo `SharedSecret` está vazio, o que concede acesso ao banco de dados.
{% endhint %}

<figure><img src="/files/da5aa73e6d0e19751cb62267ca8b345473acc81a" alt=""><figcaption></figcaption></figure>

#### Acesso ao Banco de Dados

Depois de conectado ao InfluxDB, liste os bancos de dados disponíveis:

```sql
SHOW DATABASES;
```

Selecione o `devzat` banco de dados e explore os dados do usuário. Comece listando as medições (tabelas):

```sql
SHOW MEASUREMENTS;
```

O **`usuário`** a tabela contém informações úteis. Para explorar as colunas desta medição, execute:

```sql
SHOW FIELD KEYS FROM "user";
```

Exiba os primeiros 10 resultados do `usuário` tabela:

```sql
SELECT * FROM "user" LIMIT 10;
```

<table data-header-hidden><thead><tr><th width="357"></th><th></th></tr></thead><tbody><tr><td><strong>senha</strong></td><td><strong>nome de usuário</strong></td></tr><tr><td>WillyWonka2021</td><td>wilhelm</td></tr><tr><td>woBeeYareedahc7Oogeephies7Aiseci</td><td>catherine</td></tr><tr><td>RoyalQueenBee$</td><td>charles</td></tr></tbody></table>

A senha para *catherine* é **`woBeeYareedahc7Oogeephies7Aiseci`**, o que permite acesso ao usuário **flag**.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://hacking-notes.jord4n.pro/pt-br/ports-and-services/influxdb-8086.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.