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106 lines
3.5 KiB
Markdown
106 lines
3.5 KiB
Markdown
# 8086 - Pentesting InfluxDB
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{{#include ../banners/hacktricks-training.md}}
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## 基本信息
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**InfluxDB** 是由 InfluxData 开发的开源 **时间序列数据库 (TSDB)**。TSDB 针对存储和服务时间序列数据进行了优化，这些数据由时间戳-值对组成。与通用数据库相比，TSDB 在 **存储空间** 和 **性能** 上为时间序列数据集提供了显著的改进。它们采用专门的压缩算法，并可以配置为自动删除旧数据。专门的数据库索引也增强了查询性能。
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**默认端口**：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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## 枚举
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从渗透测试者的角度来看，这是另一个可能存储敏感信息的数据库，因此了解如何转储所有信息是很有趣的。
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### 认证
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InfluxDB 可能需要认证，也可能不需要。
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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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如果您**遇到这样的错误**：`ERR: unable to parse authentication credentials`，这意味着它**期望一些凭据**。
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```
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influx –username influx –password influx_pass
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```
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在 influxdb 中存在一个漏洞，允许绕过身份验证：[**CVE-2019-20933**](https://github.com/LorenzoTullini/InfluxDB-Exploit-CVE-2019-20933)
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### 手动枚举
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此示例的信息来自 [**这里**](https://oznetnerd.com/2017/06/11/getting-know-influxdb/)。
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#### 显示数据库
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找到的数据库是 `telegraf` 和 `internal`（您会在各处找到这个）。
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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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#### 显示表/测量
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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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#### 显示列/字段键
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字段键就像数据库的 **列**
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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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最后，您可以通过执行类似的操作来**转储表**
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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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> 在一些使用身份验证绕过的测试中注意到，表的名称需要用双引号括起来，例如：`select * from "cpu"`
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### 自动化身份验证
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```bash
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msf6 > use auxiliary/scanner/http/influxdb_enum
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```
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