similar to: suid bit files + securing FreeBSD

Hi all. This might seem really naive, but can mtree be used effectively as a native-to-core-OS tripwire equivalent? Would it be as efficient in terms of time-to-run and resource requirements? What sort of pitfalls should I be aware of? Has anyone here done this? If so, would you care to share your scripts/techniques? Thanks, Dave -- ______________________

There's been an ongoing discussion (started by Colin Percival's recent work on nologin) about environment-poisoning attacks via "login -p". I thought I saw a way to address this, but the more I learn, the uglier this looks. Maybe some of the good folks who read freebsd-security can puzzle this one out: Problem: login -p can be used to propagate environment flags in order to

I hope this isn't too off topic, but I'd like a quick solution to a problem. I have a small network behind a NAT firewall (FreeBSD of course) and I'd like to block/redirect all traffic from the internal network to the local mail server (same box as firewall) in order to prevent direct smtp requests to the outside world (mainly virus/trokan programs). I think I have it right in this

I seem to remember seeing somewhere (on this list/on the web -- don't remember) that there was some ``Snort-like'' software that was available under the BSD license. Unfortunately, I'm unable to find any information about such software. Was I dreaming, or can anybody else jog my memory? :) Kind regards, Devon H. O'Dell

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ============================================================================= FreeBSD-SA-03:18.openssl Security Advisory The FreeBSD Project Topic: OpenSSL vulnerabilities in ASN.1 parsing Category: crypto Module: openssl Announced:

In regards to FreeBSD-SA-03:05.xdr, does anyone know which static binaries or tools under /bin or /sbin actually use that problem code? The recent XDR fixes the xdrmem_getlong_aligned(), xdrmem_putlong_aligned(), xdrmem_getlong_unaligned(), xdrmem_putlong_unaligned(), xdrmem_getbytes(), and/or xdrmem_putbytes() functions, but it is difficult to know what uses these (going backwards manually).

Hello, Some time ago I wrote PR conf/48170, which discussed the following problem: Syslog messages of facility LOG_AUTHPRIV and priority LOG_NOTICE (or higher) are sent by default to the world-readable log file /var/log/messages. That seems unacceptable since the facility LOG_AUTHPRIV is for hiding sensitive log messages inside a protected file, e.g., /var/log/auth.log. For example, login(1)

Hello Folks, Just a status on upcoming advisories. FreeBSD-SA-03:15.openssh This is in final review and should be released today. Fixes for this issue entered the tree on September 24. I apologize for the delay in getting this one out. FreeBSD-SA-03:16.filedesc A reference counting bug was discovered that could lead to kernel memory disclosure or a system panic.

In http://docs.freebsd.org/cgi/mid.cgi?200402260743.IAA18903 it seems RELENG_4 is vulnerable. Is there any work around to a system that has to have ports open ? Version: 1 2/18/2004@03:47:29 GMT >Initial report > <<https://ialert.idefense.com/KODetails.jhtml?irId=207650>https://ialert.idefense.com/KODetails.jhtml?irId=207650; >ID#207650: >FreeBSD Memory Buffer

This affects only 3.7p1 and 3.7.1p1. The advice to leave PAM disabled is far from heartening, nor is the semi-lame blaming the PAM spec for implementation bugs. I happen to like OPIE for remote access. Subject: Portable OpenSSH Security Advisory: sshpam.adv This document can be found at: http://www.openssh.com/txt/sshpam.adv 1. Versions affected: Portable OpenSSH versions 3.7p1

From bugtraq :-( >-----BEGIN PGP SIGNED MESSAGE----- > >Sendmail, Inc., and the Sendmail Consortium announce the availability >of sendmail 8.12.9. It contains a fix for a critical security >problem discovered by Michal Zalewski whom we thank for bringing >this problem to our attention. Sendmail urges all users to either >upgrade to sendmail 8.12.9 or apply a patch for

Heya.. Yesterday someone "attacked" by box by connection to several ports.. In other words, a simple portscan.. yet, since my box has "log_in_vain" enabled, so it tries to log everything to /var/log/messages, since the logfile got full and the size went over 100K, it tried to rotate the log to save diskspace. (Apr 16 21:00:00 omikron newsyslog[32137]: logfile turned over due

Is there any reason why releases have EoL dates after only 12 months? While it's clear that some sort of EoL is important, I can't think of any security advisories recently which weren't accompanied by patches for all the security branches, even those which are no longer officially supported. Colin Percival

OK, an official OpenSSH advisory was released, see here: <URL: http://www.mindrot.org/pipermail/openssh-unix-announce/2003-September/000063.html > The fix is currently in FreeBSD -CURRENT and -STABLE. It will be applied to the security branches as well today. Attached are patches: buffer46.patch -- For FreeBSD 4.6-RELEASE and later buffer45.patch -- For FreeBSD 4.5-RELEASE and

Hi all, please, is there some utility/command/... to list all installed kernel modules ? Peter Rosa

The attached patch adds an option --drop-suid which caused rsync to drop setuid/setgid permissions from the destination files. ie, even if the source file is setuid, the target file will not be. Added as we want to rsync the same files to machines both inside and outside our firewalls. For machines inside the firewall some files should be suid, for machines outside the firewalls they should

Hi, I believe having less root setuid binaries on system is The Way ... so: Why does RH6.2 ships with /sbin/dump & /sbin/restore root setuid? These are for sysadmins, not for regular users I hope. Is /sbin/unix_chkpwd really used and what is it used for? I haven't find anything about it in pam documentation. Is it really necessary to ship /usr/bin/gpasswd and /usr/bin/newgrp? Does

Hi, Recently once again an exploit for SuperProbe was posted to the bugtraq. That message was forwarded to linux-security and Rogier Wolff rejected it on the basis of the author of the SuperProbe (David Wexelblatt) comment that it was never intended to be suid. In general, there is absolutely no reason for programs that are supposed to be run only by root to be suid to root! If your

Hi there, i want to set up sieve to store the scripts in the mysql database. through mysql logging i can see that the incoming mail triggers a search in the script database so the mysql connection basically works. But i cant create any script through roundcube or telnet via managesieve Jun 21 11:48:06 srv-www-01 dovecot: managesieve-login: Login: user=<m.raps at rapsplace.de>,

Hi, According to ChangeLog someone "(bal)" removed -{enable/disable}-suid-ssh from configure (dating from 2002/06/07). Don't know the reason, probably this has something to do with PrivilegeSeparation. Consequence is: Users with UID != 0 are no longer able to allocate privileged ports, sshd answers "Rhosts Authentication disabled, originating port will not be