🆙 Security Fix

Thanks to @Bop:

There's a group bug where you can accept anyone into a group within MS. There's no packet validation for accepting members if the group is invite only.
This is crucial because if you allow users to have rights who are group members, your rooms can be trashed. AKA YOUR EVENT ROOMS
This commit is contained in:
duckietm
2026-06-02 16:04:47 +02:00
parent 0aadd01493
commit c4aae676b2
@@ -25,45 +25,55 @@ public class GuildAcceptMembershipEvent extends MessageHandler {
int userId = this.packet.readInt(); int userId = this.packet.readInt();
Guild guild = Emulator.getGameEnvironment().getGuildManager().getGuild(guildId); Guild guild = Emulator.getGameEnvironment().getGuildManager().getGuild(guildId);
if (guild == null) {
return;
}
GuildMember actorMember = Emulator.getGameEnvironment().getGuildManager().getGuildMember(guild, this.client.getHabbo());
boolean canAccept = guild.getOwnerId() == this.client.getHabbo().getHabboInfo().getId()
|| this.client.getHabbo().hasPermission(Permission.ACC_GUILD_ADMIN)
|| (actorMember != null && (actorMember.getRank().equals(GuildRank.ADMIN) || actorMember.getRank().equals(GuildRank.OWNER)));
if (!canAccept) {
return;
}
GuildMember targetMember = Emulator.getGameEnvironment().getGuildManager().getGuildMember(guildId, userId);
if (targetMember == null) {
this.client.sendResponse(new GuildAcceptMemberErrorComposer(guild.getId(), GuildAcceptMemberErrorComposer.NO_LONGER_MEMBER));
return;
}
if (targetMember.getRank().type != GuildRank.REQUESTED.type) {
this.client.sendResponse(new GuildAcceptMemberErrorComposer(guild.getId(), GuildAcceptMemberErrorComposer.ALREADY_ACCEPTED));
return;
}
Habbo habbo = Emulator.getGameEnvironment().getHabboManager().getHabbo(userId); Habbo habbo = Emulator.getGameEnvironment().getHabboManager().getHabbo(userId);
if (guild != null) { GuildAcceptedMembershipEvent event = new GuildAcceptedMembershipEvent(guild, userId, habbo);
GuildMember groupMember = Emulator.getGameEnvironment().getGuildManager().getGuildMember(guild, this.client.getHabbo()); Emulator.getPluginManager().fireEvent(event);
if (guild.getOwnerId() == this.client.getHabbo().getHabboInfo().getId()
|| this.client.getHabbo().hasPermission(Permission.ACC_GUILD_ADMIN) if (event.isCancelled()) {
|| (groupMember != null && (groupMember.getRank().equals(GuildRank.ADMIN) || groupMember.getRank().equals(GuildRank.OWNER)))) { return;
if (habbo != null) { }
if (habbo.getHabboStats().hasGuild(guild.getId())) {
this.client.sendResponse(new GuildAcceptMemberErrorComposer(guild.getId(), GuildAcceptMemberErrorComposer.ALREADY_ACCEPTED)); if (habbo != null) {
return; habbo.getHabboStats().addGuild(guild.getId());
} else { }
//Check the user has requested
GuildMember member = Emulator.getGameEnvironment().getGuildManager().getGuildMember(guild, habbo); Emulator.getGameEnvironment().getGuildManager().joinGuild(guild, this.client, userId, true);
if (member == null || member.getRank().type != GuildRank.REQUESTED.type) { guild.decreaseRequestCount();
this.client.sendResponse(new GuildAcceptMemberErrorComposer(guild.getId(), GuildAcceptMemberErrorComposer.NO_LONGER_MEMBER)); guild.increaseMemberCount();
return; this.client.sendResponse(new GuildRefreshMembersListComposer(guild));
} else {
GuildAcceptedMembershipEvent event = new GuildAcceptedMembershipEvent(guild, userId, habbo); if (habbo != null) {
Emulator.getPluginManager().fireEvent(event); Room room = habbo.getHabboInfo().getCurrentRoom();
if (!event.isCancelled()) { if (room != null && room.getGuildId() == guildId) {
habbo.getHabboStats().addGuild(guild.getId()); habbo.getClient().sendResponse(new GuildInfoComposer(guild, habbo.getClient(), false, Emulator.getGameEnvironment().getGuildManager().getGuildMember(guildId, userId)));
Emulator.getGameEnvironment().getGuildManager().joinGuild(guild, this.client, habbo.getHabboInfo().getId(), true); room.refreshRightsForHabbo(habbo);
guild.decreaseRequestCount();
guild.increaseMemberCount();
this.client.sendResponse(new GuildRefreshMembersListComposer(guild));
Room room = habbo.getHabboInfo().getCurrentRoom();
if (room != null) {
if (room.getGuildId() == guildId) {
habbo.getClient().sendResponse(new GuildInfoComposer(guild, habbo.getClient(), false, Emulator.getGameEnvironment().getGuildManager().getGuildMember(guildId, userId)));
room.refreshRightsForHabbo(habbo);
}
}
}
}
}
} else {
Emulator.getGameEnvironment().getGuildManager().joinGuild(guild, this.client, userId, true);
}
} }
} }
} }