Make a C wrapper, intended to be used in the shebang line. Setuid it root. Just after start, wrapper will check if script given as an argument is setuid/setgid. if no - drop root priv. if yes - change …

If setuid scripts are allowed with this implementation, an attacker can invoke an arbitrary script by creating a symbolic link to an existing setuid script, executing it, and arranging to change the …

2016年1月26日 · When mount use this option then the file system doesn't allow set-user-identifier (setuid) or set-group-identifier (setgid) bits to take effect. sudo: executes a command as …

2018年11月18日 · The setuid bit is not included in access control lists. It is either on for a file or off. You can get partially toward your goal. You can allow only certain users to execute a …

I know that enabling setuid on scripts has security issues and so is inactive by default, but expect that it works for executables. I created and executable which shows uid as an output following …

2018年2月9日 · An early hack in Unix was to make a symbolic link to a setuid shell script and call the link -i. This results in the script being called as sh -i which instead of executing the script …

Setuid, Setgid and Sticky Bits are special types of Unix/Linux file permission sets that permit certain users to run specific programs with elevated privileges. Ultimately the permissions that …

musl libc allows you to change uid to root even after supposedly dropping permissions with setuid(1000). I am not able to reproduce the problem with glibc. Code: #define …

2025年1月22日 · In a Podman-in-Podman case, the outer container fails to stop gracefully with SIGTERM when specific capabilities (cap_setuid and cap_setgid) are set to enable the use of …

2018年9月25日 · This would clearly cause a lot of problems, to mention a few: every root owned executable would need to do UID checks and call setuid() to set process' EUID back to non …