[RELEASE] Fix for random crashes on 2010 game files

[ricky92]

Hello elitepvpers,
today I've found out many servers have had problems with random crashes of game files, and many were fearing for another exploit. After some research on a .core dump, I found out a backdoor in the 2010 game file, which was compiled in by Ymir itself. What this backdoor does is it checks whether a certain date has passed or not, and the date is Aug. 22nd, 2011. Here's the C output of hexrays:

    if ( get_global_time() > 1314025533 )
    {
      v4 = rand();
      if ( v4 == 10000 * v4 / 10000 )
      {
        ClearAdminPages();
        exit(1);
      }
    }

So there is no "bad guy" this time. It's just ymir's fault, nobody else's.

For the fix, here's a .dif file:

This difference file has been created by IDA Pro

game2010
000A4B5E: 3D FF
000A4B5F: 70 FF
000A4B60: 52 FF
000A4B61: 4E 7F

Hope you enjoy it

[.Kay331]

Niice and good job.

Its tested?

[ricky92]

Untested as I don't have a server with players online atm, but I'm pretty sure it works

[.Kay331]

Ah okay

[Paul_MT2]

It's work 100%,me to fiind this exploit,ago 1 hours whatever, +1

[.Dauni]

2089er Rev: 31.03.2012 02:00:26~~

[[GM]Gobon]

In which function in the game.core do you find this exploit?

[ciao123]

was meinst du wieder damit dauni

[.Dauni]

Originally Posted by ciao123

was meinst du wieder damit dauni

In der 2089er Rev ist der Timestamp 1333159226 = 31.03.2012 02:00:26

//Ich behaupte mal das das zum Schzu gegen Liznezinhaber ist, welchen Lizenz ausgelaufen ist, damit deren Server nicht mehr richtig geht.

[Maxic]

Woher wissen wir nun, was er dort ändert. Vielleicht baut er sogar eine Sicherheitslücke ein? (Pessimistisch)

[ciao123]

wenn man es ändert ist es fixxed Dauni ?

['oShet]

2019er rev?

[Pawelmol]

This dif doesnt work is game 2089.

[.Kay331]

Originally Posted by Maxic

Woher wissen wir nun, was er dort ändert. Vielleicht baut er sogar eine Sicherheitslücke ein? (Pessimistisch)

Nein sicherlich nicht ist keine Sicherheitslücke was er da macht.

[.Dauni]

Originally Posted by ciao123

wenn man es ändert ist es fixxed Dauni ?

Laut meiner Logik scho, sonst würd ich einfach die ganze Func ausnoppen.