Add vpatch-CVE-2026-1603 rule and test

.appsec-tests/vpatch-CVE-2026-1603/CVE-2026-1603.yaml

@@ -0,0 +1,24 @@
+## autogenerated on 2026-04-15 13:28:03
+id: CVE-2026-1603
+info:
+  name: CVE-2026-1603
+  author: crowdsec
+  severity: info
+  description: CVE-2026-1603 testing
+  tags: appsec-testing
+http:
+  - raw:
+      - |
+        POST /RemoteControlAuth/api/Auth HTTP/1.1
+        Host: {{Hostname}}
+        Content-Type: application/json
+
+        {
+            "logintype":"64",
+            "username":"administrator"
+        }
+    cookie-reuse: true
+    matchers:
+    - type: status
+      status:
+       - 403

.appsec-tests/vpatch-CVE-2026-1603/config.yaml

@@ -0,0 +1,5 @@
+## autogenerated on 2026-04-15 13:28:03
+appsec-rules:
+  - ./appsec-rules/crowdsecurity/base-config.yaml
+  - ./appsec-rules/crowdsecurity/vpatch-CVE-2026-1603.yaml
+nuclei_template: CVE-2026-1603.yaml

appsec-rules/crowdsecurity/vpatch-CVE-2026-1603.yaml

@@ -0,0 +1,31 @@
+## autogenerated on 2026-04-15 13:28:03
+name: crowdsecurity/vpatch-CVE-2026-1603
+description: 'Detects authentication bypass in Ivanti Endpoint Manager via improper access control on /RemoteControlAuth/api/Auth.'
+rules:
+  - and:
+      - zones:
+          - URI
+        transform:
+          - lowercase
+        match:
+          type: contains
+          value: /remotecontrolauth/api/auth
+      - zones:
+          - RAW_BODY
+        transform:
+          - lowercase
+        match:
+          type: contains
+          value: '"logintype":"64"'
+
+labels:
+  type: exploit
+  service: http
+  confidence: 3
+  spoofable: 0
+  behavior: 'http:exploit'
+  label: 'Ivanti Endpoint Manager - Authentication Bypass'
+  classification:
+    - cve.CVE-2026-1603
+    - attack.T1190
+    - cwe.CWE-288

collections/crowdsecurity/appsec-virtual-patching.yaml

@@ -8,6 +8,7 @@ appsec-rules:
 - crowdsecurity/vpatch-CVE-2017-9841
 - crowdsecurity/vpatch-CVE-2020-11738
 - crowdsecurity/vpatch-CVE-2022-27926
+- crowdsecurity/vpatch-CVE-2026-1603
 - crowdsecurity/vpatch-CVE-2022-35914
 - crowdsecurity/vpatch-CVE-2022-46169
 - crowdsecurity/vpatch-CVE-2024-3408