Full Disclosure mailing list archives
Re: Possibly a stupid question RPC over HTTP
From: ASB <abaker () gmail com>
Date: Wed, 13 Oct 2004 16:44:42 -0400
You need protocol level inspection (i.e. beyond SPI) if you're going to monitor that kind of traffic. Also, the support for RPC over HTTP (should really be HTTPS) is not as open ended as you might fear. Look at the following: http://www.google.com/search?q=RPC%20over%20HTTPS%20implement - ASB Cheap, Fast, Secure -- Pick Any TWO. http://www.ultratech-llc.com/KB/ On Tue, 12 Oct 2004 12:41:56 -0700, Daniel Sichel <daniels () ponderosatel com> wrote:
This may just reflect my ignorance, but I read (and found hard to believe) that Microsoft has implemented RPC over HTTP. Is this not a HUGE security hole? If I understand it correctly it means that good old HTML or XML can invoke a process using standard web traffic (port 80)? Is there any permission checking done? what things can be invoked by RPC over HTTP? Jeeze, to me it looks like the barn door is now wide open. Am I right, and if so, how can I detect RPCs in web traffic to block this junk? Can ANY stateful packet filter see this stuff or is the pattern too broad in allowed RPCs? Again, I hope this is not a stupid question or inappropriate format for this, as somebody else recently said, there is already enough noise on this list. I would hate to see this list degenerate, it has been REALLY valuable to me as a network engineer on occaison. Thanks all, Dan Sichel Ponderosa telephone daniels () ponderosatel com
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Current thread:
- Possibly a stupid question RPC over HTTP Daniel Sichel (Oct 12)
- Re: Possibly a stupid question RPC over HTTP ASB (Oct 13)
- Re: Possibly a stupid question RPC over HTTP S G Masood (Oct 13)
- Re: Possibly a stupid question RPC over HTTP Kevin (Oct 14)
- Re: Possibly a stupid question RPC over HTTP S G Masood (Oct 14)
- Re: Possibly a stupid question RPC over HTTP S G Masood (Oct 13)
- <Possible follow-ups>
- Re: Possibly a stupid question RPC over HTTP Daniel H. Renner (Oct 13)
- Re: Possibly a stupid question RPC over HTTP Cory Whitesell (Oct 13)
- Re: Possibly a stupid question RPC over HTTP Sean Milheim (Oct 13)
- Re: Possibly a stupid question RPC over HTTP Barry Fitzgerald (Oct 13)
- Re: Possibly a stupid question RPC over HTTP Shannon Johnston (Oct 13)
- Re: Possibly a stupid question RPC over HTTP Byron L. Sonne (Oct 14)
- Re: Possibly a stupid question RPC over HTTP Maxime Ducharme (Oct 13)
- Re: Possibly a stupid question RPC over HTTP Cory Whitesell (Oct 13)
(Thread continues...)
- Re: Possibly a stupid question RPC over HTTP ASB (Oct 13)