 | | | chmod +s not working as expected | chmod +s not working as expected 2003-11-27 - By Girish Radhakrishnan
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Hi James,
Could you please check the User ID of both users in the redHat 7.3 and 6.2.
Looks like the user ID is messed up. Are the /etc/passwd user ids the same
for both 6.2 and 7.3 machine?
-Girish
----Original Message Follows----
From: "James Ho" <james.ho@(protected)>
Reply-To: valhalla-list@(protected)
To: <valhalla-list@(protected)>
Subject: Re: chmod +s not working as expected
Date: Thu, 27 Nov 2003 15:25:08 +0800
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FILETIME=[C9D992C0:01C3B4B7]
nope... does not work.
-- -- Original Message -- --
From: Cameron Simpson
To: valhalla-list@(protected)
Sent: Thursday, November 27, 2003 3:19 PM
Subject: Re: chmod +s not working as expected
On 14:45 27 Nov 2003, James Ho <james.ho@(protected)> wrote:
| I just transported a program from Red Hat Linux 6.2 to Red Hat Linux
7.3.
| The C program has a line stating:
| system ("whoami");
|
| The permission of the executable is 6777 (ie. -rwsrwsrwx) and the
| owner of the program is "user1".
|
| Using another user login "user99", I execute the program in both Red
Hat
| Linux 6.2 and 7.3.
| In 6.2, I get the output "user1"
| In 7.3, I get the output "user99"
|
| Why is this? Is there any way I can get the program work as it did
| in Red Hat Linux 6.2?
I can imagine the kernel not allowing setuid to work on a publicly
writable file. The 7.3 box will have a newer (==> maybe more paranoid)
kernel. Try making the permissions 6555 or 6111 and see how it behaves.
Cheers,
--
Cameron Simpson <cs@(protected)> DoD#743
http://www.cskk.ezoshosting.com/cs/
If you 'aint falling off, you ar'nt going hard enough. - Fred Gassit
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