similar to: [Bug 354] New: sshd with privsep doesn't do pam session setup properly

For root sessions pam_open_session is called, but not pam_close_session. sshd behavior is broken for root logins because if pam session is run from the child, close is never called due to exec: on open since use_privsep is not set, parent calls do_exec_pty(), which does not open session. then, it skips calling do_setusercontext(), so it does not open session. child calls

Hi. If sshd is configured to use PAM and UsePrivilegeSeparation=no or you are logging is as root, any messages returned by PAM session modules are not displayed to the user. (Even when the config file has privsep=yes, logging in as root disables privsep anyway since there's no point, so it behaves the same way as privsep=no). I think I've figured out why: when privsep=no,

Hello I've got a problem with pam-script and ssh. pam-script is a module for PAM that enables execution of given script while pam session opens and/or closes. I try to use it with ssh while logging in and out: it is kind of login and logout scripts. PAM session creation is done in function do_pam_session which is invoked by do_setusercontext which is invoked by do_child. do_child function is

Hi- Under privsep, I experimented with moving the session_setup_sia() out of do_child() and into do_setusercontext(), which is where the uids/gids are set to the final execution user. The call is made with a NULL tty, and this is functional provided that any later pty allocation uses grantpty() to set the device permissions. Logging in with this method shows that a utmp entry does get made for

Hello Darren! Hello OpenSSH (portable) users! After updating from OpenSSH 3.8.1p1 to OpenSSH 3.9p1 on my Fedora Core 2 Linux box, the "sshd" no longer respects "~/.hushlogin" to get a quiet and silent login. Now I get the noisy "Last login: somedate from somehost" line. I really loved that feature. ;-) The problem is related to a change in "session.c",

Hello, I'm trying to implement setting of user limits (ulimit) in sshd. I'm not using PAM so I need it in the sshd itself. The task is very simple - just to put one line calling setup_limits(pw); and link with -lshadow. But the problem is, where to put this line. I did it in session.c, in do_child(), like this: #ifdef HAVE_OSF_SIA session_setup_sia(pw, s->ttyfd == -1 ? NULL

I need this for BSD/OS 4.2 + privsep perhaps we should not call do_setusercontext() after chroot(). --- sshd.c.orig Fri Jun 21 03:09:47 2002 +++ sshd.c Tue Jun 25 13:11:03 2002 @@ -548,21 +548,35 @@ /* Change our root directory*/ if (chroot(_PATH_PRIVSEP_CHROOT_DIR) == -1) fatal("chroot(\"%s\"): %s", _PATH_PRIVSEP_CHROOT_DIR, strerror(errno)); if

-- | ``We've all heard that a million monkeys banging on | Damien Miller - | a million typewriters will eventually reproduce the | <djm at mindrot.org> | works of Shakespeare. Now, thanks to the Internet, / | we know this is not true.'' - Robert Wilensky UCB / http://www.mindrot.org ---------- Forwarded message ---------- Date: Tue, 14 Nov 2000 16:33:18 +0100 From: System

What do we loose by not having post-auth privsep? What code is executed between authorization and actual setting of the effective uid? On Tue, 3 Sep 2002, Chris Adams wrote: > Once upon a time, Toni L. Harbaugh-Blackford <harbaugh at nciaxp.ncifcrf.gov> said: > > It appears that the integration of the sia session setup will either > > have to be rethought or abandoned

I?ve stumbled across a rather obscure problem with ssh. My machine is setup to use Kerberos authentication, i.e., I use the pam_krb5 module in the ssh auth section of the PAM configuration file and I have sshd compiled to accept valid Kerberos 5 tickets as well. I also use OpenAFS, so I?ve got the pam_openafs_session module in the ssh session section of the PAM configuration file. Everything

http://bugzilla.mindrot.org/show_bug.cgi?id=423 ------- Additional Comments From djm at mindrot.org 2003-03-10 12:06 ------- The patch looks good, but the only thing that makes me wary is the use of signals for IPC. Would it not be possible to do the chauthtok call earlier? E.g. after the call to do_pam_session() in do_exec_pty()? ------- You are receiving this mail because: ------- You

http://bugzilla.mindrot.org/show_bug.cgi?id=918 Summary: ssh_gssapi_storecreds called to late to be usable by PAM in sesion.c Product: Portable OpenSSH Version: -current Platform: All OS/Version: All Status: NEW Severity: normal Priority: P2 Component: PAM support AssignedTo:

http://bugzilla.mindrot.org/show_bug.cgi?id=87 Summary: Last logon that gets reported upon login is the current login time Product: Portable OpenSSH Version: 3.0.2p1 Platform: UltraSparc OS/Version: Solaris Status: NEW Severity: normal Priority: P2 Component: sshd AssignedTo:

Hi All. Attached is a patch that implements password expiry with PAM and privsep. It works by passing a descriptor to the tty to the monitor, which sets up a child with that tty as stdin/stdout/stderr, then runs chauthtok(). No setuid helpers. I used some parts of Michael Steffens' patch (bugid #423) to make it work on HP-UX. It's still rough but it works. Tested on Solaris 8 and

heres a fix for pam support im openssh, inline and attached.. openssh calls do_pam_session early, before a fork(). it does this on the proc still running as root, so it checks the users limits, against what root has running, and depending on limits can fail at the fork() (and almost always does). this patch moves it past the fork. ive been running it for a couple of weeks and everything seems

Hello All. Attached is an update to my previous patch to make do_pam_chauthtok and privsep play nicely together. First, a question: does anybody care about these or the password expiration patches? Anyway, the "PRIVSEP(do_pam_hauthtok())" has been moved to just after the pty has been allocated but before it's made the controlling tty. This allows the child running chauthtok to

Hi, This diff (for portable) makes the chrooted preauth privsep process log via the monitor using a shared socketpair. It removes the need for /dev/log inside /var/empty and makes mandatory sandboxing of the privsep child easier down the road (no more socket() syscall required). Please test. -d Index: log.c =================================================================== RCS file:

I've been trying to cut down the size of openssh so I can run it on my Nokia 770. One thing which helps a fair amount (and will help even more when I get '-ffunction-sections -fdata-sections --gc-sections' working) is to have the option of compiling out privilege separation... Is it worth me tidying this up and trying to make it apply properly to the OpenBSD version? Does the openbsd

Hi, I am running FreeBSD 4.7 and openssh 3.7.1p1. I have enabled PAM usage and indeed, I can use PAM for authentication purposes. Since configure does login_cap.h, the preprocessor is side stepping do_pam_session() altogether in session.c:do_setusercontext(). Here is my patch for session.c. My understanding about portability issues is rather limited. I would very much appreciate if you

Hello, We use USE_POSIX_THREADS in our HP-UX build of OpenSSH. When we connect a non-root user with PAM [pam-kerberos] then I get the following error. debug3: PAM: opening session debug1: PAM: reinitializing credentials PAM: pam_setcred(): Failure setting user credentials This is particularly for non-root users with PrivSep YES. When I connect to a root user with PrivSep YES or to a non-root