similar to: BSD Auth: set child environment variables requested by login script [PATCH]

Hi, I'm a developer of a static analysis tool canalyze. Recently I applied it to Openssh-6.2p1. It seems some reports are real after by manually checking: 1. Use undefined value file: dispatch.c function: dispatch_run At line 93: type = packet_read_poll_seqnr(&seqnr); seqnr may not be override at file: packet.c function: packet_read_poll_seqnr line 1442 where compat20 is 0. 2. Null

I just cobbled up a little patch to add support for OPIE to OpenSSH. Currently untested, but feedback is welcome. Wichert. -- _________________________________________________________________ / Nothing is fool-proof to a sufficiently talented fool \ | wichert at cistron.nl http://www.liacs.nl/~wichert/ | | 1024D/2FA3BC2D 576E 100B 518D 2F16 36B0 2805 3CB8 9250

This is the 1st revision of the Advisory. This document can be found at: http://www.openssh.com/txt/buffer.adv 1. Versions affected: All versions of OpenSSH's sshd prior to 3.7 contain a buffer management error. It is uncertain whether this error is potentially exploitable, however, we prefer to see bugs fixed proactively. 2. Solution: Upgrade to OpenSSH

From: Yuichiro Naito <naito.yuichiro at gmail.com> If the following functions are available, add an additional check if users are allowed to login imposed by login class. * auth_hostok(3) * auth_timeok(3) These functions are implemented on FreeBSD. --- >From GitHub pull request https://github.com/openssh/openssh-portable/pull/262 auth.c | 18 ++++++++++++++++++ configure.ac |

https://bugzilla.mindrot.org/show_bug.cgi?id=1389 Summary: Problem compiling openssh 4.7p1 Classification: Unclassified Product: Portable OpenSSH Version: 4.7p1 Platform: Other OS/Version: Linux Status: NEW Severity: normal Priority: P2 Component: Build system AssignedTo: bitbucket at

http://bugzilla.mindrot.org/show_bug.cgi?id=963 Summary: Problem compiling openssh 3.9p1 Product: Portable OpenSSH Version: 3.9p1 Platform: All OS/Version: Linux Status: NEW Severity: normal Priority: P2 Component: Build system AssignedTo: openssh-bugs at mindrot.org ReportedBy: pierre42d

this is the proposed gssapi diff against OpenSSH-current (non-portable). note: if this goes in, the old krb5 auth (ssh.com compatible) will be removed. please comment. jakob Index: auth.h =================================================================== RCS file: /home/hack/jakob/mycvs/sshgss/auth.h,v retrieving revision 1.1.1.2 retrieving revision 1.3 diff -u -r1.1.1.2 -r1.3 --- auth.h

http://bugzilla.mindrot.org/show_bug.cgi?id=252 dtucker at zip.com.au changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #212 is|0 |1 obsolete| | ------- Additional Comments From dtucker at zip.com.au 2003-08-22 14:14 -------

Hi, We have updated our TIS authserv support patch for OpenSSH 2.5.1p2. You'll find it attached to my message. -- Bazsi PGP info: KeyID 9AF8D0A9 Fingerprint CD27 CFB0 802C 0944 9CFD 804E C82C 8EB1 -------------- next part -------------- diff -urN openssh-2.5.1p2/Makefile.in openssh-2.5.1p2-tis/Makefile.in --- openssh-2.5.1p2/Makefile.in Sun Feb 18 20:13:33 2001 +++

Hello, There has been an annoyance with OpenSSH that has been bugging me lately. It pays no attention to pw_change and pw_expire fields from the passwd file for users by default. Thus even if the admin has set a user's account to expire 5 days ago they can still login. So one might say, just add 'UseLogin yes' and all of your problems will be solved. This of course is not a good

As posted, here is an updated patch which allows openssh to be built with non-selinux config. (Hi openssh guys, forwarding this to you incase you interested including it into the devel version of openssh. Please let us know if you have any suggestions or changes that need to be made) Regards Nigel Kukard On Thu, Sep 02, 2004 at 04:11:54PM -0400, Daniel J Walsh wrote: > New SSH patch. >

The following are patches against openssh 2.1.1p4 to add support for the BSD_AUTH authentication mechanisms. It allows the use of non-challenge/response style mechanisms (which styles are allowed my be limited by appropriate auth-ssh entries in login.conf). The patches also add support for calling setusercontext for the appropriate class when called with a command (so that the PATH, limits,

BSD/OS 4.2 comes with OpenSSH 2.1.1p4, patched to support BSDI's authentication library. However, BSDI's patches have several problems: 1. They don't run the approval phase, so they can allow users to login who aren't supposed to be able to. 2. They don't patch configure to automatically detect the BSDI auth system, so they're not ready to use in a general portable

Specifying a RemoteForward of 0:example.com:1234 dynamically allocates the listen port on the server, and then reports it to ... the client! Where it is practically useless. Was this someone's idea of a joke? Presumably not--there are some technical obstacles to reporting it to the remote process. I'd like to help solve that problem. The natural way to me would be to extend the syntax

The following patch (relative to -current) makes PAM a proper kbd-interactive citizen. There are a few limitations (grep for todo), but the code seems to work OK for protocols 1 & 2 with and without privsep. Please have a play! auth2-pam.c is based on code from FreeBSD. Index: auth2-chall.c =================================================================== RCS file:

I'm running OpenSSH 3.4 and have the situation that some users want to allow password authentication into their accounts and some explicitly want to disallow password authentication. Is this possible? I wasn't able to come up with a way looking through ssh_config and sshd_config, as well as some FAQs. It seems the problem is that there is no scoping of directives in sshd_config, thus

Below is a new PAM kbd-int diff based on FreeBSD's code. This code makes PAM kbd-int work with privilege separation. Contrary to what I have previously stated - it *does* handle multiple prompts. What it does not handle is multiple passes through the PAM conversation function, which would be required for expired password changing. I would really appreciate some additional eyes over the

We have a system on which users are given a very restricted environment (their shell is a menu) where they should not be able to run arbitrary commands. However, because their shell is not statically linked, ld.so provides a nice clutch of holes for them to exploit. The patch below adds a new configuration option to sshd which quashes their attempts to set LD_PRELOAD etc. using ~/.ssh/environment

I noticed that (perhaps because ':' is invalid in a username) you can say ssh -l user:style host, where the "user:style" is sent by the client, and the server strips the ":style" part off and makes it available as part of the authentication context. It's currently unused. What are the plans for this, if any? I was experimenting with the idea of using it with SRP

The following is a patch (based on FreeBSD code) which gets kbd-int working with privsep. It moves the kbd-int PAM conversation to a child process and communicates with it over a socket. The patch has a limitation: it does not handle multiple prompts - I have no idea how common these are in real-life. Furthermore it is not well tested at all (despite my many requests on openssh-unix-dev@). -d