Home > Cannot Exec > Setuid Cannot Exec Sperl

Setuid Cannot Exec Sperl


By doing this, Perl can help lock down possible attack vectors that can compromise the security of your script. On these systems, Perl should be compiled with -DSETUID_SCRIPTS_ARE_SECURE_NOW . The UNIX/Linux system allows users to create files in /tmp, but none can delete files not owned by him. It worked like a charm (after upgrading to last version, BackupPC wouln't work anymore). +1 Reply Leave a Reply Click here to cancel reply. navigate to this website

The St. How to install ClamAV antivirus on Linux / cPanel? I will update the answer accordingly. –harmic Feb 9 '14 at 22:33 add a comment| up vote 4 down vote No, you cannot use setuid aka chmod +s on scripts. It lets a user acquire hidden powers by running such a file owned by root. $ ls -l /etc/passwd /etc/shadow /usr/bin/passwd -rw-r-r- 1 root root 2232 Mar 15 00:26 /etc/passwd -r----- https://chrisjean.com/fix-setuid-cannot-exec-sperl/

Can't Do Setuid (cannot Exec Sperl) Linux

Name (required) Mail (will not be published) (required) Website Notify me of followup comments via e-mail I believe that the free flow of information and ideas is key to the past Does your kernel have *secure* setuid scripts? [n] Some systems have disabled setuid scripts, especially systems where setuid scripts cannot be secure. Thus when a non privileged user executes passwd, the effective UID of the process is not the user's, but of root's – the owner of the program. c apache perl unix setuid share|improve this question asked Feb 6 '14 at 8:09 Sumit Rathore 105212 add a comment| 2 Answers 2 active oldest votes up vote 5 down vote

When king creates a file in project, the group for the file is king (king's primary gid). Board index » All times are UTC - 5 hours [ DST ] This allows the script to run as the user the script's file is owned by. After you have worked for a while with Linux you discover probably that there is much more to file permissions than just the "rwx" bits.

Reply Alex says: June 20, 2013 at 12:20 am Hey, thanks a lot! Now login as king and create temp2 file. $ whoami king $ touch temp2; ls -l temp2 -rw-r-r- 1 king development 0 Mar 26 13:49 temp2 Notice the group ownership for Lab colleague uses cracked software. https://binblog.info/2008/02/09/cannot-exec-sperl/ As you can see this is a very powerful feature especially if root owns the file with s-bit set.

The the reason for the setuid error on the  perl script is the script have the setuid bit set and won't work from the browser since they are running under the So it seems I should revert to suidperl. If you don't have such a username or don't want me to test, simply enter 'none'. It is possible for perl5 to detect those bits and emulate setuid/setgid in a secure fashion.

Perl Setuid Script

manual Flex 3 Reference Manual Flex 3.5 Language Reference Manual Linux on-line books paradise Linux on-line man pages Linux on-line man pages Linux Red-Hat admin guide Mysql Reference Manual Get 15GB http://linuxhostingsupport.net/blog/perl-script-cant-do-setuid-cannot-exec-sperl This mode lets a process have the privileges of the owner of the file during the instance of the program. Can't Do Setuid (cannot Exec Sperl) Linux apt-get install perl-suid is not working in debian wheezy. Perl-suidperl Again I recommend sudo as a better alternative.

Graph visualization: Leave gap between vertex and endpoint of edge How can the US electoral college vote be so different to the popular vote? Why is (a % 256) different than (a & 0xFF)? This SUID privilege is then used by passwd to edit /etc/shadow. Assign sticky bit to the project directory.As a owner of the directory or administrator. # chmod +t /home/project # ls -ld /home/project/ drwxrwxr-t 15 root development 4096 Mar 27 13:46 /home/project/ Insecure $env{path} While Running Setuid At

So can i setuid for perl script or i should go with c code. US Election results 2016: What went wrong with prediction models? scripts. (If setuid #! http://xtra-rss.com/cannot-exec/solaris-cannot-exec-as.php programs that cannot be executed by the kernel directory but need an interpreter such as the Bourne shell or Java,can have their setuid bit set, but it doesn't have any effect.

Thanks. Screen: Cannot open your terminal ‘/dev/pts/0′ - please check SFTP error: Subsystem Request for SFTP Failed, Subsystem Not Found Copyright © LinuxHostingSupport. Will I get the same result if I use 18-55mm lens at 55mm (full zoom) and 55-200mm lens at 55mm (no zoom), if not, then why?

akanaujia Posts: 19Joined: Fri Mar 25, 2011 2:36 pm Top Re: Web Check - Nagios XI by tonyyarusso » Tue Apr 19, 2011 9:42 am What operating system / version

When you run the script you will see that the process that runs it gets your user-ID and your group-ID: $ ./reids.pl Real UID: 500 Real GID: 500 500 Effective UID: For that login as administrator and set SGID bit using following command: # chmod g+s /home/project/ # ls -ld /home/project/ drwxrwsr-x 15 root development 4096 Mar 26 12:34 /home/project/ From the It solved my issue with Apache running BackupPC perl Scripts 🙂 Nic said, on November 9th, 2010 at 7:25 am Thanks! Fill in your details below or click an icon to log in: Email (required) (Address never made public) Name (required) Website You are commenting using your WordPress.com account. (LogOut/Change) You are

How to install Tomcat 7 on a cPanel server? Other username to test security of setuid scripts with? [none] "su" will (probably) prompt you for 's password. Not the answer you're looking for? Cheers[reply][d/l] Re^3: Changing effecive user id by astroboy (Chaplain) on Aug 27, 2009 at 05:44UTC Ok, may way forward was to run Configure in interactive mode: Some kernels have a bug

Tony YarussoTechnical Services___TIESWeb: http://ties.k12.mn.us/ tonyyarusso Posts: 1128Joined: Wed Mar 03, 2010 12:38 pmLocation: St. Rene deDonTechnical Team___Nagios Enterprises, LLCWeb: http://www.nagios.com rdedon Posts: 579Joined: Sat Nov 20, 2010 4:51 pm Top Re: Web Check - Nagios XI by akanaujia » Wed Apr 20, 2011 1:04 What is this line of counties voting for the Democratic party in the 2016 elections? This causes the file to be executed under the user-ID of the user that owns the file rather than the user that executes the file.

This emulation will only work if setuid scripts have been disabled in your kernel. Now add SUID permission to the script reids.pl : # chmod u+s /home/venu/reids.pl (Do it from root account) Now return from the super user mode to the usual non privileged mode. akanaujia Posts: 19Joined: Fri Mar 25, 2011 2:36 pm Top Re: Web Check - Nagios XI by rdedon » Wed Apr 20, 2011 1:15 pm That sounds good, just touch Today,machines with ultra-fast disk drives and lots of cheap memory don't need this bit for ordinary files and that is also useless.

Paul, MN, USA Website Top Re: Web Check - Nagios XI by akanaujia » Wed Apr 13, 2011 4:39 pm Thanks for pointing me to the manual.I downloaded the windows version If you set the SUID attribute on an executable file, the process resulting in its execution doesn't use the user's identification but the user identification of the file owner. Other additional checks are also performed. How to find/locate a Spammer on a Linux Plesk server?

Tournas Dimitrios Learning the web and more Home About-me Rules for the visitors Technical - support ? Speedy Servers and Bandwidth Generously Provided by pair Networks Built with the Perl programming language. Which word should I use for "to drive (a car)"? Y $ ls temp ls: temp: No such file or directory So what happened?

Many UNIX/Linux programs have a special permission mode that lets users update sensitive system files –like /etc/shadow -something they can't do directly with an editor. So I'm guessing RHEL/CentOS 5.3 doesn't support this. Some people stop there and never learn those first three bits , but you are curious to learn all about the permission schema on Linux right ?