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Full Discussion: chmod 777 security risks?
Top Forums UNIX for Dummies Questions & Answers chmod 777 security risks? Post 302097325 by reborg on Thursday 23rd of November 2006 09:19:26 AM
Old 11-23-2006
The point we are making is this:

With chmod 777, you are giving all rights on all the files to ANY user.

Lets say a hacker managed to find an exploit which allows him to gain some kind of access to your server through a vulnerable service, which allows him to execute code as the user of the service.

If the last 6/7 is there it means he can change your files regardless of which user he gets access as. (The keys are in the car)

With the second 6/7 if means that anyone in the group can change the files. (You given someone the valet key to the car)

With only the first 6/7 you (the owner) only can make the changes. ( the key to the car is in your pocket)

So as you can see, someone malicious has more to do in each case, before they can change your files.
 

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