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Packet protection for ability list learn.

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MobiusDev
2017-09-23 19:04:40 +00:00
parent 931a39776d
commit 573cbae79a
4 changed files with 20 additions and 0 deletions
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5
L2J_Mobius_1.0_Ertheia/java/com/l2jmobius/gameserver/network/clientpackets/ability/RequestAcquireAbilityList.java
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@@ -54,6 +54,11 @@ public class RequestAcquireAbilityList implements IClientIncomingPacket
for (int j = 0; j < size; j++)
{
final SkillHolder holder = new SkillHolder(packet.readD(), packet.readD());
if (holder.getSkillLevel() < 1)
{
_log.warning("Player " + client + " is trying to learn skill " + holder + " by sending packet with level 0!");
return false;
}
if (_skills.putIfAbsent(holder.getSkillId(), holder) != null)
{
_log.warning("Player " + client + " is trying to send two times one skill " + holder + " to learn!");