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Re: Possible SunOS 5.5.1 sulogin vulnerability

daemon@ATHENA.MIT.EDU (Mark Graff)
Sat Nov 16 17:04:27 1996

Date: 	Fri, 15 Nov 1996 16:05:34 -0800
Reply-To: Mark Graff <mark.graff@Eng.Sun.COM>
From: Mark Graff <mark.graff@Eng.Sun.COM>
X-To:         swb@aurora.phys.utk.edu
To: Multiple recipients of list BUGTRAQ <BUGTRAQ@netspace.org>

This was discussed on comp.security.unix yesterday. It's not a security hole,
just a bogus message produced by a program that expects to be run
with privileges. I filed a bug on it.

-mg-

Mark Graff
Sun Security Coordinator
415 -786-5274


 From owner-bugtraq@NETSPACE.ORG  Fri Nov 15 16:01:54 1996
 Approved-By: ALEPH1@UNDERGROUND.ORG
 Approved-By: Steve Blass <swb@AURORA.PHYS.UTK.EDU>
 Date: Fri, 15 Nov 1996 17:59:42 -0500
 Subject: Re: Possible SunOS 5.5.1 sulogin vulnerability
 X-To: "Jason R. Mastaler" <jason@mastaler.com>
 To: Multiple recipients of list BUGTRAQ <BUGTRAQ@netspace.org>

 I just tried it on a patched 2.5.1 box and it does *look like it goes into
 single user mode but I still couldn't edit /etc/shadow.  Near as I can
 tell it just gave me a subshell.

 -
 swb


 On Wed, 13 Nov 1996, Jason R. Mastaler wrote:

 > Possible hole in sulogin here?  Under Solaris 2.5.1 (sparc & x86),
 > executing /sbin/sulogin from an unprivileged user account dumps you
 > into what appears to be single-user mode with an ugly warning message
 > without prompting for the root password.  You don't find this with
 > earlier versions of Solaris (2.5 and lower).
 >
 > ________________________________________________________________
 >
 > sol251% /sbin/sulogin
 >
 > *** NO ENTRY FOR root IN PASSWORD FILE! ***
 >
 > Entering System Maintenance Mode
 >
 > $
 >
 > ________________________________________________________________
 >
 > sol25% /sbin/sulogin
 >
 > Type Ctrl-d to proceed with normal startup,
 > (or give root password for system maintenance):
 >
 > ________________________________________________________________
 >

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