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[Tutorial] How to install Call of Duty 4 (1.7) - Steam Version (before april patch)

- - - - - fix patch steam version april 1.7 cod4 tutorial

3 replies to this topic

#1
Mrozy

Mrozy

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Hello everyone
In this tutorial I will show you how to download/fix Call of Duty 4 Steam Version. Most of you might not know, but in april Activision got the information about dangeruous RCE exploit existence in most modern CoDs, which allows to execute any code on your computer. However, the exploit does not even exist in cod4, but activision patched it anyway and in a rush they downgraded execuable file to 1.6(after official 1.8), which broke the game completely. More details at the end. Now, how to patch the patch :)
 
 
Tutorial (Easy Fix):
1. Install Call of Duty 4 on Steam. (Skip this step, if you have it installed)
2. Download my iw3mp.exe from this link: https://www.dropbox..../iw3mp.exe?dl=1 (This file comes from original steam database before patch).
3. Open your Steam folder and go to:

steamapps -> common -> Call of Duty 4
C:\Program Files (x86)\Steam\steamapps\common\Call of Duty 4
4. Replace the old iw3mp with new one.
5. Done
 
 
Tutorial (Hard Fix, If you are uncertain with viruses):
1. Install Call of Duty 4 on Steam. (Skip this step, if you have it installed)
2. Run Steam Console (I will show 3 methods how to run it)
a) Press Win+R and type:

steam://nav/console
Spoiler
b) Open Web Browser and type:

steam://nav/console
in address.
Spoiler
c) Create Steam shortcut, Right Click -> Properties, and add "-console" parameter to the "Target" field.
Spoiler
You should see new tab called "Console" on steam.
Spoiler
3. In the console type:

download_depot 7940 7941 7169272952747671405
Wait for Steam to download all content(823.84 MB). Don't restart your Client or you lose all progress! You won't see any progress bar, only complete message.
Spoiler
4. After the download is done open your Steam folder and go to:

steamapps -> content -> app_7940 -> depot_7941
C:\Program Files (x86)\Steam\steamapps\app_7940\depot_7941
Spoiler
5. You will find some cod4 files, but the only thing you want is iw3mp.exe.
6. Copy the file to:

steamapps\common\Call of Duty 4
and replace old one.
7. Done. You can delete whole "content" folder, you won't need it anymore.
 
Hope I helped you to enjoy CoD4 again.
 
More details about CoD4 April Patch: https://cod4x.me/ind...al-repair-guide

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#2
Doge

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I have not had this .exe version issue. My game is fine. Please could someone explain the risk mentioned in other games? Thankyou.

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#3
Mrozy

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I have not had this .exe version issue. My game is fine. Please could someone explain the risk mentioned in other games? Thankyou.

 

Your game may not have been updated, that's why your version is fine, but after reinstall it will download "broken" file. Activision after a month changed execuable version to official 1.8, but it still breaks everything, because you can't enter any 1.7/x1.8 server. Retail versions are still 1.7. Also it resets stats from old profile folder, which 1.7 uses (not a big deal since x1.8 saves it in %localappdata%). Some screenshots from Steam Version (yes, I broke cod :D):

Spoiler

 

About risk: Activision patched all CoD series, where this vulnerability occured. The exploit we are talking is called RCE (Remote Code Execution). This particular RCE was dangerous for host. Host has to receive the data of every other player. The hacker could easily send malicious packets to host PC by overflowing some buffers, so you could easily send any malware you wanted to. In cod4 this problem hardly ever existed, because you would have to run a listen server and a hacker would need to have rcon to do any damage. However in cod4 exist another RCE, which is also dangerous. Look how codx18 automatically installs on your pc without any permission. Hopefully x1.8 patch all known vulnerabilities. However I know another leaks in modern cods, which are still not patched. If you want more details I added threads about it. You can also search google for it.


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#4
Runny

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Great tutorial... truly great mraz^^

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