From 07e3ac3cf68ca7d16cb75b8d0617146e1b1e81d3 Mon Sep 17 00:00:00 2001
From: crowdsec-automation
 <63358111+crowdsec-automation@users.noreply.github.com>
Date: Wed, 15 Apr 2026 15:28:06 +0200
Subject: [PATCH 1/4] Add vpatch-CVE-2026-1603 rule

---
 .../crowdsecurity/vpatch-CVE-2026-1603.yaml   | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 appsec-rules/crowdsecurity/vpatch-CVE-2026-1603.yaml

diff --git a/appsec-rules/crowdsecurity/vpatch-CVE-2026-1603.yaml b/appsec-rules/crowdsecurity/vpatch-CVE-2026-1603.yaml
new file mode 100644
index 00000000000..c971eb376a2
--- /dev/null
+++ b/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

From 9a77c8c159e7f306f759e3ed68e10b277c5edde4 Mon Sep 17 00:00:00 2001
From: crowdsec-automation
 <63358111+crowdsec-automation@users.noreply.github.com>
Date: Wed, 15 Apr 2026 15:28:08 +0200
Subject: [PATCH 2/4] Add vpatch-CVE-2026-1603 test config

---
 .appsec-tests/vpatch-CVE-2026-1603/config.yaml | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 .appsec-tests/vpatch-CVE-2026-1603/config.yaml

diff --git a/.appsec-tests/vpatch-CVE-2026-1603/config.yaml b/.appsec-tests/vpatch-CVE-2026-1603/config.yaml
new file mode 100644
index 00000000000..6c233fb60c3
--- /dev/null
+++ b/.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

From a06dd938bd4a4ecc731b3e9e28f81a9490bc8f1c Mon Sep 17 00:00:00 2001
From: crowdsec-automation
 <63358111+crowdsec-automation@users.noreply.github.com>
Date: Wed, 15 Apr 2026 15:28:10 +0200
Subject: [PATCH 3/4] Add CVE-2026-1603.yaml test

---
 .../vpatch-CVE-2026-1603/CVE-2026-1603.yaml   | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 .appsec-tests/vpatch-CVE-2026-1603/CVE-2026-1603.yaml

diff --git a/.appsec-tests/vpatch-CVE-2026-1603/CVE-2026-1603.yaml b/.appsec-tests/vpatch-CVE-2026-1603/CVE-2026-1603.yaml
new file mode 100644
index 00000000000..6c51ea5c3e9
--- /dev/null
+++ b/.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

From 0fb8d9ced6f8ce51845dabd1e48b842e8ecf0127 Mon Sep 17 00:00:00 2001
From: crowdsec-automation
 <63358111+crowdsec-automation@users.noreply.github.com>
Date: Wed, 15 Apr 2026 15:28:12 +0200
Subject: [PATCH 4/4] Add vpatch-CVE-2026-1603 rule to vpatch collection

---
 collections/crowdsecurity/appsec-virtual-patching.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/collections/crowdsecurity/appsec-virtual-patching.yaml b/collections/crowdsecurity/appsec-virtual-patching.yaml
index 7ccf9a8bf03..dc96edf7be7 100644
--- a/collections/crowdsecurity/appsec-virtual-patching.yaml
+++ b/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