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> Stop Compilation/execution Of Users Application
post Jun 11 2004, 09:47 PM
Post #1

RMS is my Hero

Group: Support Specialist
Posts: 862
Joined: 18-February 04
From: Wisconsin
Member No.: 2,404

There's a new exploit that a normal use can use to crash the kernel, and lock up the system.

It's a small C/C++ program, so basically you can just copy the code to clipboard, copy it into a file, and gcc -o crash crash.txt to get it working


So basically I want to stop users from compiling and running applications they upload. =D


*Points finger at the author above him* They're a witch! Burn them!
Vist my website!
Join me in IRC! Server: Channel: #UnhandledExceptions
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post Jun 11 2004, 10:28 PM
Post #2

Its GNU/

Group: Admin
Posts: 3,433
Joined: 25-July 03
From: Corpus Chrsiti, TX, USA
Member No.: 1,151

make gcc only usable by root and a group by using chown ... then they would have to upload a new gcc to do that (which they could do if they wanted to).

I don't allow anyone access to anything on my server except the webpages...

Johnny Hughes
Enterprise Alternatives: CentOS, WhiteBoxEL
Favorite Workstation Distros (in order): CentOS, Gentoo, Debian Sarge, Ubuntu, Mandrake, FedoraCore, Slackware, SUSE
Favorite Server Distros (in order): CentOS, WhiteBoxEL, Debian Sarge, Slackware, Mandrake, FedoraCore, Gentoo, SUSE
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post Jun 12 2004, 01:13 AM
Post #3

RMS is my Hero

Group: Support Specialist
Posts: 782
Joined: 6-October 02
From: Trichy,INDIA
Member No.: 29

remove the executable flag from all the files uploaded by users.

Hemant Kumar
user posted image
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