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Date: Fri, 6 Apr 2001 02:11:12 -0700 (PDT)
From: sw@anthologeek.net
To: freebsd-gnats-submit@FreeBSD.org
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Subject: bin/26375: PAMized su allows non-wheel members to su root
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>Number:         26375
>Category:       bin
>Synopsis:       PAMized su allows non-wheel members to su root
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Apr 06 02:20:01 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Sameh Ghane
>Release:        5.0-CURRENT
>Organization:
>Environment:
FreeBSD core.pourIX.net 5.0-CURRENT FreeBSD 5.0-CURRENT #0: Mon Apr  2 12:17:20 CEST 2001     root@core.pourIX.net:/usr/src/sys/compile/CORE  i386

>Description:
Compiling su.c without NOPAM, generate a binary that allows anyone to su root without the wheel-group check.
>How-To-Repeat:
# cd /usr/src/usr.bin/su
# make
# ./su <non-wheel-member-user>
$ su
Password:
#
>Fix:
Compiled with the NOPAM option disable PAM authentication, and disallows users to su root if they are not in group wheel.
>Release-Note:
>Audit-Trail:
>Unformatted:

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