https://github.com/mnalis/libchmod

chmod(2) disable group/world writeable permissions - LD_PRELOAD shared library
https://github.com/mnalis/libchmod

library linux

Last synced: about 16 hours ago
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chmod(2) disable group/world writeable permissions - LD_PRELOAD shared library

• Host: GitHub
• URL: https://github.com/mnalis/libchmod
• Owner: mnalis
• License: lgpl-3.0
• Created: 2013-01-16T19:51:33.000Z (almost 12 years ago)
• Default Branch: master
• Last Pushed: 2013-01-16T19:53:00.000Z (almost 12 years ago)
• Last Synced: 2023-03-10T21:33:45.710Z (over 1 year ago)
• Topics: library, linux
• Language: C
• Homepage:
• Size: 105 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README
  • License: COPYING

Awesome Lists containing this project

README

        
This LD_PRELOAD shared library is used to override modes given to chmod(2), fchmod(2) and fchmodat(2)

In default configuration, it will disable making files group or world writeable.

For example, on Debian system you can edit /etc/init.d/vsftpd and before

starting daemon put

LD_PRELOAD="/usr/local/lib/libchmod.so"

export LD_PRELOAD

In such configuration, on your shared web hosting machine, you could allow

'SITE CHMOD' commands in vsftpd(8) (so users can set their suexec'd CGI

scripts u+x, for example), but still disallow them to do outrageously stupid

things they're bound to do following advice on Internet forums, like doing

"chmod 777" on all files and directories "just in case" and hence opening

themselves to world of pain (and blaming *YOU* when they get cracked).