| Server IP : 104.21.30.238 / Your IP : 216.73.216.153 Web Server : LiteSpeed System : Linux premium151.web-hosting.com 4.18.0-553.44.1.lve.el8.x86_64 #1 SMP Thu Mar 13 14:29:12 UTC 2025 x86_64 User : tempvsty ( 647) PHP Version : 8.0.30 Disable Function : NONE MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : OFF | Pkexec : OFF Directory : /././././proc/self/root/./opt/cpanel/ea-ruby27/src/passenger-release-6.0.27/doc/ |
Upload File : |
# Handling of temp files Always use unpredictable filenames for temp files. Failing to do so makes us vulnerable to symlink attacks, TOCTOU race conditions, file squatting, or even information disclosure and privilege escalation. Always use a tempfile creation strategy that atomically: 1. Finds a free filename, *and*, 2. Reserves that filename (failing if it already exists), *and*, 3. Restrict permissions to only the intended user (e.g. mode 0600), Doing these non-atomically makes us vulnerable to TOCTU race conditions. Implementation tips: - Use getSystemTempDir() - Use mkstemp() for single, regular files. Don't use it for non-regular files such as Unix sockets; use a temp dir instead. - Use mkdtemp() for creating a temp dir or for storing temp non-regular files. - mktemp() is bad.