fix(crowdsec): update whitelist.yaml to prevent false positive from nextcloud chunk

config/services/systemd/common/crowdsec/bouncers/whitelists.yaml.j2

@@ -18,9 +18,6 @@ whitelist:
         - "evt.Meta.target_fqdn == '{{ services['immich']['domain']['public'] }}.{{ domain['public'] }}' && evt.Meta.http_path contains '/api/assets/' && evt.Meta.http_path contains '/thumbnail'"
         # opencloud chunk request false positive
         - "evt.Meta.target_fqdn == '{{ services['opencloud']['domain']['public'] }}.{{ domain['public'] }}' && evt.Meta.http_path contains '/js/chunks/'"
-        # nextcloud chunk request false positive (crowdsecurity/http-crawl-non_statics)
-        - "evt.Meta.target_fqdn == '{{ services['nextcloud']['domain']['public'] }}.{{ domain['public'] }}' && evt.Meta.http_path contains '/apps/viewer/js/'"
-        - "evt.Meta.target_fqdn == '{{ services['nextcloud']['domain']['public'] }}.{{ domain['public'] }}' && evt.Meta.http_path contains '/dist/'"
-        # nextcloud upload directory request 404 error false positive (crowdsecurity/http-probing)
-        - "evt.Meta.target_fqdn == '{{ services['nextcloud']['domain']['public'] }}.{{ domain['public'] }}' && evt.Meta.http_path contains '/remote.php/dav/files/'"
+        # nextcloud chunk request false positive
+        - evt.Meta.target_fqdn == '{{ services['opencloud']['domain']['public'] }}.{{ domain['public'] }}' && evt.Meta.http_path contains '/apps/viewer/js/'
 {% endif %}

docs/issues/crowdsec/260502_nextcloud.md

@@ -14,25 +14,20 @@
   - fw ban users' IP address.
 
 ## Reason
-- Nextcloud uses chunks for actions, and uploading and downloading
-    - chunks on '/apps/viewer/js', '/dist/'
+- Nextcloud uses chunks when clients uploads or download files to it.
+- LAPI decides a ban when a lot of chunks file is uploaded or downloaded from external devices.
     - `crowdsecurity/http-crawl-non_statics`
-- Nextcloud keeps checking directory which is uploading
-    - upload directory '/remote.php/dav/files/'
-    - `crowdsecurity/http-probing`
 
 ## Timeline
-- 2026-05-02: Release nextcloud
+- 2026-05-02: Release OpenCloud
 - 2026-05-02: Find the false positive case, and add whitelist
 
 ## Solution
 - Access to fw
   - Check the ban list with `sudo cscli alerts list`
   - Read the ban case with `sudo cscli alerts inspect $NUMBER`
-- Add expressions on whitelist
-  - evt.Meta.target_fqdn == '{{ services['nextcloud']['domain']['public'] }}.{{ domain['public'] }}' && evt.Meta.http_path contains '/apps/viewer/js/'
-  - evt.Meta.target_fqdn == '{{ services['nextcloud']['domain']['public'] }}.{{ domain['public'] }}' && evt.Meta.http_path contains '/dist/'
-  - evt.Meta.target_fqdn == '{{ services['nextcloud']['domain']['public'] }}.{{ domain['public'] }}' && evt.Meta.http_path contains '/remote.php/dav/files/'
+- Add regex on whitelist
+  - evt.Meta.target_fcqdn == '{{ services['opencloud']['domain']['public'] }}.{{ domain['public'] }}' && evt.Meta.http_path contains '/apps/viewer/js/'
 - Delete false positive decision
   - Check false positive decision with `sudo cscli decision list`
   - Delete false positive decision with `sudo cscli decision delete --id $ID`