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fix(security): reserve dashboard hosts from NAT and re-check DDNS profile ownership at worker time

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GHSA-x6fg-52vr-hj4w: NAT is a commonHandler any authenticated member can
create, and newHTTPandGRPCMux matches r.Host against NAT before dispatching
the dashboard/gRPC handlers, so a member could register the dashboard's own
host as a NAT Domain and hijack global routing. Add IsReservedDashboardHost
(InstallHost/ListenHost plus an operator-declared ReservedHosts list for
reverse-proxy deployments), reject reserved hosts on create/update, and drop
pre-planted records when building the startup cache.

GHSA-39g2-8x68-pmx8: bind-time CheckPermission let a member pre-bind a DDNS
profile ID that the victim would only create later. GetDDNSProvidersFromProfiles
now re-validates ownership by server owner UID and skips foreign-owned
profiles (UserID==0 is treated as a migration artifact, not an admin grant).

Co-authored-by: cloudcode <cloudcode@users.noreply.github.com>
This commit is contained in:
naiba
2026-05-31 02:04:35 +00:00
co-authored by cloudcode
parent ab25662ddd
commit f18232eafa
10 changed files with 390 additions and 2 deletions
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cmd/dashboard/controller/setting.go
+1
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@@ -99,6 +99,7 @@ func updateConfig(c *gin.Context) (any, error) {
singleton.Conf.EnablePlainIPInNotification = sf.EnablePlainIPInNotification
singleton.Conf.Cover = sf.Cover
singleton.Conf.InstallHost = sf.InstallHost
singleton.Conf.ReservedHosts = sf.ReservedHosts
singleton.Conf.IgnoredIPNotification = sf.IgnoredIPNotification
singleton.Conf.IPChangeNotificationGroupID = sf.IPChangeNotificationGroupID
singleton.Conf.SiteName = sf.SiteName