mailing list archives
Re: Blocking port 135?
From: "Crist Clark" <crist.clark () globalstar com>
Date: Fri, 01 Aug 2003 13:12:07 -0700
Bob German wrote:
Absolutely. All of the NetBIOS ports: 135, 137, 138, 139, 445.
Although the public exploits floating around (at the moment) attack
135/tcp, 135/udp is also vulnerable...
And for this crowd, I should point out that blocking 135/udp blocks
DCE-RPC which is used rather heavily by HP OpenView by default.
You may hear some shrieks of pain should you chose to block 135/udp.
Oh, and according to the guys who broke the story in the first place,
Port 593/tcp is also potentially problematic.
From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On Behalf Of
Sent: Friday, August 01, 2003 2:37 PM
To: nanog () merit edu
Subject: Blocking port 135?
Would blocking port 135 at the network edge be a prudent preventative
Crist J. Clark crist.clark () globalstar com
Globalstar Communications (408) 933-4387
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RE: Blocking port 135? Bob German (Aug 01)
Re: Blocking port 135? Crist Clark (Aug 01)
Re: Blocking port 135? Jared Mauch (Aug 01)
Re: Blocking port 135? Stephen Sprunk (Aug 01)
RE: Blocking port 135? Chris Johnston (Aug 02)
Re: Blocking port 135? Mans Nilsson (Aug 02)
Re: Blocking port 135? Valdis . Kletnieks (Aug 04)
- Re: Blocking port 135?, (continued)