Apache as non root with sudo
donald.ritchey at exeloncorp.com
donald.ritchey at exeloncorp.com
Tue Jan 6 11:56:25 EST 2004
Jamie:
As stated earlier, when you run apachectl as 'user' through sudo, the
LD_LIBRARY_PATH variable is cleared, so apachectl has no way to find the
libmm.so.11 shared library.
1. You can create a symbolic link from /opt/ebill/app/lib/libmm.so.11 to
/usr/lib, so that normal shared library linkage will find it
or
2. You can compile apachectl so that the path to libmm.so.11 is included in
the linkage information. The steps for that depend on your OS and your
compiler.
Don
-----Original Message-----
From: Jamie Bowden [mailto:jamiebowden at hotmail.com]
Sent: Tuesday, January 06, 2004 10:40 AM
To: Eric.Ladner at ChevronTexaco.com; donald.ritchey at exeloncorp.com
Cc: sudo-users at sudo.ws
Subject: RE: Apache as non root with sudo
Here is what I have:
ldd /opt/ebill/app/bin/httpd
libsocket.so.1 => /usr/lib/libsocket.so.1
libnsl.so.1 => /usr/lib/libnsl.so.1
libpthread.so.1 => /usr/lib/libpthread.so.1
libmm.so.11 => /opt/ebill/app/lib/libmm.so.11
libdl.so.1 => /usr/lib/libdl.so.1
libc.so.1 => /usr/lib/libc.so.1
libmp.so.2 => /usr/lib/libmp.so.2
libthread.so.1 => /usr/lib/libthread.so.1
/usr/platform/SUNW,UltraAX-i2/lib/libc_psr.so.1
I checked the LD_LIBRARY_PATH for both the user and root - they are
identical.
root user:
# echo $LD_LIBRARY_PATH
/opt/oracle/release/9.2.1/jdbc/lib:/opt/oracle/release/9.2.1/lib:/usr/local/
lib/:/opt/ebill/app/lib:/opt/ebill/app/lib
user
# echo $LD_LIBRARY_PATH
/opt/oracle/release/9.2.1/jdbc/lib:/opt/oracle/release/9.2.1/lib:/usr/local/
lib/:/opt/ebill/app/lib:/opt/ebill/app/lib
Any ideas on what/how root is finding this and the user isn't?
Thanks
Jamie
>From: "Ladner, Eric (Eric.Ladner)" <Eric.Ladner at ChevronTexaco.com>
>To: donald.ritchey at exeloncorp.com
>CC: jamiebowden at hotmail.com, sudo-users at sudo.ws
>Subject: RE: Apache as non root with sudo
>Date: Tue, 6 Jan 2004 10:10:14 -0600
>
>
>Also, depending on your operating system, you can do a chatr
>/opt/ebill/app/bin/httpd (as in HP-UX) or ldd /opt/ebill/app/bin/httpd
>(most other Unix's) to see what it's linked aginst. That'll help, most
>likely.
>
>Eric
>
>-----Original Message-----
>From: sudo-users-bounces at sudo.ws [mailto:sudo-users-bounces at sudo.ws] On
>Behalf Of donald.ritchey at exeloncorp.com
>Sent: Tuesday, January 06, 2004 9:30 AM
>To: jamiebowden at hotmail.com; sudo-users at sudo.ws
>Subject: RE: Apache as non root with sudo
>
>
>Jamie:
>
>This looks like an error in the shared library linkage with apachectl.
>Your apachectl is compiled with linkage to shared libraries that are not
>part of the standard shared library loading environment (probably
>depending on a LD_LIBRARY_PATH variable to find the library in
>question). As a security measure to prevent spoofing sensitive set-UID
>executables, LD_LIBRARY_PATH is cleared for setUID executables when the
>real user ID is not root.
>
>Responses:
>
>1. Move the needed library into a library that is in the standard
>library search path (in Tru64 UNIX, the loader(5) man page tells you
>what those directories are, for your OS, you may have to do some
>research to find out where these are) or extend the standard library
>search path to include the needed directory.
>
>2. You may compile in the location of the directory containing the
>missing shared library into the apachectl executable. Again, this is
>dependent on the OS and compilers for your environment. Check your man
>pages for cc(1) and ld(1) for the proper options.
>
>Best wishes,
>
>Donald L. (Don) Ritchey
>E-mail: Donald.Ritchey at exeloncorp.com
>
>-----Original Message-----
>From: Jamie Bowden [mailto:jamiebowden at hotmail.com]
>Sent: Tuesday, January 06, 2004 9:10 AM
>To: sudo-users at sudo.ws
>Subject: Apache as non root with sudo
>
>
>Hello,
>
>I have installed sudo and am wondering why I cannot get non root users
>to
>start apache when that user issues the command "sudo apachectl start"
>
>This user has been given 100% root access via sudo command. They can
>run
>any command root can.
>
>The error message I get is:
>ld.so.1: /opt/ebill/app/bin/httpd: fatal: libmm.so.11: open failed: No
>such
>file or directory
>Killed
>/opt/ebill/app/bin/apachectl start: httpd could not be started
>
>Does sudo not give the user the same paths as root? Root does not get
>this
>message - isn't Sudo supposed to make that user "behave" like root?
>
>Any suggestions on what else I could verify?
>
>Thanks
>
>Jamie Bowden
>www.atl.bluecross.ca
>
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