Wed, Apr 20 2005 23:29
Security bulletin 05-019, KB 893066 and VPN issues
Beginning to see some reports of VPN issues with 05-019/KB 893066. I personally am not experiencing these issues here but it may be due to your router and what not.
Jerry Bryant from Microsoft reminds us that issues with a security patch are a free call in his blog posting of today. That if you don't call, the issues will not be resolved. Therefore it's vital that if you experience issues with a security patch to call in.
Filed under: Security
From: Windows NTBugtraq Mailing List
[mailto:NTBUGTRAQ@LISTSERV.NTBUGTRAQ.COM] On Behalf Of Darryl J Roberts
Sent: Tuesday, April 19, 2005 7:11 PM
Subject: MS05-019 Breaks VPN
After installing the update in Microsoft Security Bulletin MS05-019 on
two servers at a customer site, we are no longer able to connect via VPN
to terminal services on those servers. (Other servers that did not have
the security bulletins from last Tuesday installed can connect via VPN.)
After many hours over two days working with Microsoft Product Support
Services, we discovered that forcing the MTU size down allowed the
client to connect to terminal services. Today Microsoft PSS reported
the they have confirmed that there is a problem with ICMP messages being
incorrectly discarded (other have opened PSS cases about this issue).
This could be why the MTU size is not being set correctly.
There will be an update to the patch in MS05-019, but as of this time,
that update is not available. A Microsoft KB article is being written
and has been assigned the number KB898060, but as to this time, that
article is not publicly available.
I will be uninstalling the update for Security Bulletin MS05-019 from
our customers servers this evening and waiting for the corrected patch
before reinstalling it.
Darryl J. Roberts, MCSE, MCP+I, CompTIA CTT+, CSSA
Software Engineering Unlimited, IT Professional Services Consultancy
Ventura, CA, USA