> 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/ports-and-services/influxdb-8086.md).
# InfluxDB - 8086
InfluxDB CVE-2019-20933 authentication bypass, database enumeration, and credential discovery.
Port 8086 exposes InfluxDB version 1.7.5. The target is affected by an InfluxDB authentication bypass issue:
**Vulnerability:**[CVE-2019-20933](https://nvd.nist.gov/vuln/detail/CVE-2019-20933)
{% embed url="" %}
{% hint style="info" %}
This vulnerability allows authentication bypass by exploiting a JWT token whose `SharedSecret` is empty, which grants access to the database.
{% endhint %}
#### Access to the Database
Once connected to InfluxDB, list the available databases:
```sql
SHOW DATABASES;
```
Select the `devzat` database and explore user data. Start by listing the measurements (tables):
```sql
SHOW MEASUREMENTS;
```
The **`user`** table contains useful information. To explore the columns of this measurement, run:
```sql
SHOW FIELD KEYS FROM "user";
```
Display the first 10 results from the `user` table:
```sql
SELECT * FROM "user" LIMIT 10;
```
password
username
WillyWonka2021
wilhelm
woBeeYareedahc7Oogeephies7Aiseci
catherine
RoyalQueenBee$
charles
The password for *catherine* is **`woBeeYareedahc7Oogeephies7Aiseci`**, which allows access to the user **flag**.
---
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