Date: Fri, 15 Jan 1999 17:06:33 +0100 (CET) From: xaa@xaa.iae.nl To: FreeBSD-gnats-submit@FreeBSD.ORG Subject: bin/9516: ftpd doesn't honor invalid shell in login class Message-ID: <19990115160633.95D5A965E@toad.stack.nl>
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>Number: 9516
>Category: bin
>Synopsis: ftpd doesn't honor invalid shelll in login class
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Jan 15 08:10:00 PST 1999
>Closed-Date:
>Last-Modified:
>Originator: Mark Huizer
>Release: FreeBSD 2.2.7-STABLE i386
>Organization:
MCGV Stack
>Environment:
2.2.7 and 3.0-current
>Description:
a user in a login class with an invalid shell (think 'lockout
class') can ftp to his account without trouble.
>How-To-Repeat:
create lockout class with /bin/false as shell,change user to
that class, ftp to his account
>Fix:
patch to libexec/ftpd.c
772a773,775
> #ifdef LOGIN_CAP
> login_cap_t *lc = NULL;
> #endif
811a815,825
> #ifdef LOGIN_CAP
> lc = login_getpwclass(pw);
> if (lc == NULL) {
> if ((shell = pw->pw_shell) == NULL || *shell == 0)
> shell = _PATH_BSHELL;
> } else {
> shell = login_getcapstr(lc, "shell", pw->pw_shell, pw->pw_shell);
> if (shell==NULL || *shell == 0)
> shell = _PATH_BSHELL;
> }
> #else
813a828
> #endif
>Release-Note:
>Audit-Trail:
>Unformatted:
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