setuid Post: 302107440

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

setuid

I have a C wrapper programme which basically execute a shell script. The shell script has 700 as permission and oracle is owner of the shell script. The C execuatble has 4711 permission so that means that it has setuid bit set and group and others can execute the C executable. The reason why I am...

2. UNIX for Dummies Questions & Answers

Using setuid and setgid

Hi, I have been looking at setuid and setgid. I understand that setuid determines who owns the file and setgid determines which group of people can access the file... yeah?! But i need to know how to actually use setuid and setgid. I'm guessing chmod will feature somewhere.. Any help...

3. UNIX for Advanced & Expert Users

cc, setuid, and LD_LIBRARY_PATH

Hi, This question deals with Solaris 2.8 and setuid programs. From research I've done so far, setuid programs ignore LD_LIBRARY_PATH; I've proven this and am OK with it. The thing I am not certain of how the C compiler is supposed to behave when it is invoked via a setuid program. Basically,...

4. Solaris

setuid and guid

Hi All, Can someone give me some info about setuid or guid topic? Also about sticky bit. Thanks in advance, itik

5. UNIX Desktop Questions & Answers

find setuid files

I would like to list files with setuid and setgid set up. I used the find command, but I got a lot of permission denied error. I tried to redirect the error to the hole it does not work. I used the command string below find . -type f $ -perm -4000 -o -perm -2000 $ -exec ls {} \; 2>/dev/null...

6. AIX

sudo must be setuid root.

Guy's I'm trying to add some lines in sudo by useing this command visudo # User privilege specification root ALL=(ALL) ALL # Uncomment to allow people in group wheel to run all commands # %wheel ALL=(ALL) ALL # Same thing without a password # %wheel ALL=(ALL) NOPASSWD: ALL #...

7. HP-UX

Disable Setuid in HP-UX

Hi All, How to prevent root user from doing setuid(). In otherwords, if the root(any user) is trying to do setuid in a program it should fail.

8. Solaris

Need help with setuid.

Hi Gurus, I need your suggestions,to implement setuid. Here is the situation. I have a user xyz on a solaris zone.He needs to install a package using a pkgadd command but i guess only a root can run that .Is there any way I can set the setuid bit on the pkgadd which is in the location...

9. UNIX for Beginners Questions & Answers

What keeps me from abusing setuid(0) and programs with setuid bit set?

Just learning about the privilege escalation method provided by setuid. Correct me if I am wrong but what it does is change the uid of the current process to whatever uid I set. Right ? So what stops me from writing my own C program and calling setuid(0) within it and gaining root privileges ? ...

10. Shell Programming and Scripting

Setuid usage

I'm trying - as an ordinary user - to create a file in the root directory of my system. For that purpose I wrote a simple script that echoes a string into a file. I made the file executable, used sudo to change ownership to root. Like this: $ cat hello #!/bin/bash echo hello > /hello $...

LEARN ABOUT CENTOS

geteuid

GETUID(2)						     Linux Programmer's Manual							 GETUID(2)

NAME

       getuid, geteuid - get user identity

SYNOPSIS

       #include <unistd.h>
       #include <sys/types.h>

       uid_t getuid(void);
       uid_t geteuid(void);

DESCRIPTION

       getuid() returns the real user ID of the calling process.

       geteuid() returns the effective user ID of the calling process.

ERRORS

       These functions are always successful.

CONFORMING TO

       POSIX.1-2001, 4.3BSD.

NOTES

   History
       In UNIX V6 the getuid() call returned (euid << 8) + uid.  UNIX V7 introduced separate calls getuid() and geteuid().

       The  original  Linux  getuid()  and  geteuid()  system  calls supported only 16-bit user IDs.  Subsequently, Linux 2.4 added getuid32() and
       geteuid32(), supporting 32-bit IDs.  The glibc getuid() and geteuid() wrapper functions transparently deal with the variations across  ker-
       nel versions.

SEE ALSO

       getresuid(2), setreuid(2), setuid(2), credentials(7)

COLOPHON

       This  page is part of release 3.53 of the Linux man-pages project.  A description of the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.

Linux								    2010-11-22								 GETUID(2)

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

setuid

Discussion started by: sanjay92

2. UNIX for Dummies Questions & Answers

Using setuid and setgid

Discussion started by: crispy

3. UNIX for Advanced & Expert Users

cc, setuid, and LD_LIBRARY_PATH

Discussion started by: WolfBoy

4. Solaris

setuid and guid

Discussion started by: itik