On Fri, Mar 01, 2002 at 11:36:54AM -0500, enrique wrote:
> 
> On Friday, March 1, 2002, at 07:53  AM, [EMAIL PROTECTED] wrote:
> 
> >Anyhow, rh has also issued 7.1 rpms that has been upgraded to 4.0.6, 
> >this it is possible to use 7.1 together with midgard.
> >
> 
> Just thought the midgard crew may be interested in this CERT advisory. 
> How is this going to affect the latest midgard version? Have a great day.
Though I'm very quiet these days (and highly overloaded with business hours'
work), let me step in and add some description to this problem. I have
been working on this problem past ten days as a part of ALT Linux
security updates service. As other Linux vendors, we had the information 
before CERT advisory was published.

There are bunch of security issues lately (I'm speaking only about already
published ones). There are:

- buffer overflow in mod_ssl < 2.8.7 which allows to create certificate
  with mailcious code in it and then execute it on user's side when s/he
  accepts the certificate (even signed by CA).

- huge number of bugs in mod_proxy in Apache 1.3.23 which render it fully
  non-functional (they are part of very experimental HTTP/1.1 support
  code).

- PHP buffer overflow and remote shell exploits which are not fixed yet in
  public releases (even 4.1.2) and vendor security updates to 4.0.6 (yes,
  RH's updates are still having problems with buffer overflow).

Hopefully, items 1) and 3) are fixed by both mod_ssl and PHP teams: use
mod_ssl 2.8.7 and use PHP4 from CVS branch PHP_4_0_7 (this is 4.1.2 with
additional patch which closes remaining problems). Problem 2) is still
there, I had to forward port mod_proxy from 1.3.22 to allow it working
correctly and patch was 1.5 times greater than the code size itself :(.

You can find patch for PHP 4.0.6 attached, it is different from one from
PHP's site (that is incomplete).

Back to Midgard. We are vulnerable currently unless your are running PHP
from PHP_4_0_7 branch checked out yesterday evening or PHP 4.2.0 (cvs).
This is inherited problem, not our fault.

-- 
/ Alexander Bokovoy
Software architect and analyst             // SaM-Solutions Ltd.
---
I'm successful because I'm lucky.   The harder I work, the luckier I get.

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