Setuid root fping for windows

You can help protect yourself from scammers by verifying that the contact is a microsoft agent or microsoft employee and that the phone number is an official microsoft global customer service number. This program can only be run by root, or it must be setuid root. The setuid0 call fails, as the application does not have permission to gain root access. I had encountered this problem on sudogksu not working few months earlier. This is part of a game program called cabertoss that manipulates a file scores that should be writable only by the game program itself. Despite fping having the necessary privileges either via suid or. Understanding how the setuid and setgid permissions work on a unixlike system is important, in part to know why they are used sometimes, but more importantly, to avoid misusing them. Config file is not owned by root or is writable by group or other or extjob is not setuid and owned by root yeah, i know what you mean. A passwd command with setuid permission would resemble the following.

I copied a file named classdump to my usrbin folder, then neither terminal. The real uid remains the same, so the program can identify the user that ran it and can switch back to that user if desired. The code in your post is very nice, but it is purely linux, and there is some work if you want to port this to windows. Feel free to edit the documentation by pressing the edit button on github it will work shinken for you and youll be able to make a pr very easily. Its probably getusername or getusernameex in the win32api module. Checks all mounted paths starting at the specified directory, which can be root, sys, bin, or er root.

Also a random user can exec a setgided script, with the. Heres an example showing how to set up a program that changes its effective user id. Xymon will install the xymonping tool as setuidrootonly on the xymon server. Run these commands as user root in order to set up correct permissions. How to set the setuid and setgid bit for files in linux. This is the difference between effective uid user id and real uid some common utilities, such as passwd, are owned root and configured this way out of necessity passwd needs to access etcshadow which can only be. To stop nonroot users from hosing the network when fping is installed setuid root, normal users cannot specify the. I dint know whether i meddled with something or is it any other configuration that created the problem. Super allows specified users to execute scripts or other commands as if they were root. Order of commands matters, linux will reset setuid bit after a chown for security reasons. If the user is root or the program is setuseridroot, special care must be taken. Allowing nonadmins to run programs as admins like the. I think it would be a consistent sane default to allow regular users to run fping too.

This program requires root privileges to be able to perform network ping tests. For me, logging out of the current user and logging in as the root user was enough to be able to run chown root. All setuid programs displays s or s in the permission bit ownerexecute of the ls command. There is something wrong with the sudo command here is what i did based on some online searching.

Zabbix writes ip addresses to be checked by any of three icmpping keys to a temporary file. Whenever i had to open an application with gksu it did not open at all. If setuid bit turned on a file, user executing that executable file gets the permissions of the individual or group that owns the file. Is there a possiblity on windows to have an executable that always runs with the process privileges of the owner and not the one that starts the executable.

I think you may be confusing the sticky bit with the other special unix permissions setuid and setgid, both of which affect how applications. Tech support scams are an industrywide issue where scammers trick you into paying for unnecessary technical support services. It seems that older versions of fping report round trip times in 0. Yes, you can store them encrypted, but if the user isnt supposed to have to type anything like, say, a password whatever encryption you use to store the credentials will have its key stored right along side such that it can be decrypted. The setuid bit can be set on an executable file so that when run, the program will have the privileges of the owner of the file instead of the real user, if they are different. You need to use the ls l or find command to see setuid programs. Is there an equivalent of su for windows essentially, the architecture of the os prevents doing what youd like wo storing credentials. It is intended to be a secure alternative to making scripts setuid root. When we say an executable file is setuid root then we mean it has the setuid bit set and is owned by the user 0 root.

After this has occurred, it is impossible for the program to regain root privileges. This allows a setuserid other than root program to drop all of its user privileges, do some unprivileged work, and then reengage the original. The program assumes that its executable file will be installed with the setuid bit set and owned by the same user as the. Roland schemers did publish a first version of it in 1992 and it has established itself since then as a standard tool for network diagnostics and statistics. To stop non root users from hosing the network when fping is installed setuid root, normal users cannot specify the following. To stop nonroot users from hosing the network when fping is installed setuid root, normal users cannot specify the following. Your command usrbinsudo isnt running with the correct access modes or you are not running the sudo you think to help you identify the exact nature of what is wrong, run the following commands in a terminal type sudo to check you are using the true sudo without any intervening subshell. Practical techniques to obviate setuidtoroot binaries unc cs. Install fping in ubuntudebianlinuxmint in ubuntu it is very simple to install this just execute the below command package will be installed sudo aptget install fping install fping in redhat 7.

Information security stack exchange is a question and answer site for information security professionals. It will drop root privileges immediately after obtaining the network socket needed for this, and will not run with root privileges at all while handling network traffic or doing file io. If you have given root a password on your ubuntu install, use su to become root, then run. If the effective uid of the caller is root, the real uid and saved setuserid are also set. Installing cern root under windows 10 with subsystem for linux. From there, i simply logged out of root and back in as my normal user and sudo worked without issue. Understand the setuid and setgid permissions to improve. They are often used to allow users on a computer system to run programs with temporarily elevated privileges in order to perform a specific task. Special file permissions using setuid, setgid and sticky. The packages in the ubuntu universe repos and epel repositories for rhelcentos install fping with correct permissions for non root users. If your company has an existing red hat account, your organization administrator can grant you access. Effective uid is not 0, is sudo installed setuid root. Closed dmsimard opened this issue may 23, 2014 9 comments closed check. Some determined users can find a way to maintain the permissions that are granted to them by the setuid process even after the process has finished executing.

The setuid set user id is a permission bit, that allows the users to exec a program with the permissions of its owner the setgid set group id is a bit that allows the user to exec a program with the permissions of the group owner a random user can exec a setuided script, with the permissions of the owner. I recently came across a rather subtle one that doesnt require changing any code, but instead exploits a standard feature of linux user permissions system called setuid to subtly allow them to execute a root shell from any user account from the system including data, which you might not even know if compromised. In order to stop mere mortals from hosing the network when fping is installed setuid root, normal users cant specify the following. If you are a new customer, register now for access to product evaluations and purchasing capabilities. This program must be installed as setuid root in order to open up a raw socket, or must be run by root. So it will run with an effective uid of 0 and can basically do whatever it wants.