Full Disclosure mailing list archives
RE: Possibly a stupid question RPC over HTTP
From: "winter" <mail_winter () hotpop com>
Date: Thu, 14 Oct 2004 09:24:31 +1000
I recall Todd from bindview talking about this in one of his advisories...that it was possible in IIS, but had to be explicitly switched on. And also in one of the blackhat (rm) archive methinks. http://www.securityfocus.com/archive/1/329668
-----Original Message----- From: full-disclosure-admin () lists netsys com [mailto:full-disclosure-admin () lists netsys com] On Behalf Of Rodrigo Barbosa Sent: Thursday, 14 October 2004 6:05 AM To: full-disclosure () lists netsys com Subject: Re: [Full-disclosure] Possibly a stupid question RPC over HTTP -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 This is called, in my experience, XML-RPC (google search with lots of results). Reference: http://www.xmlrpc.com/spec Yes, it is a Remote Procedure Calling implementation. No, it is not the same things that the good old udp based RPC used for things like NIS and NFS. References: RFC 1057 and RFC 1831. That can be the source of confusion. Akin names. On Wed, Oct 13, 2004 at 11:37:12AM -0400, Daniel H. Renner wrote:Daniel, Could you please point out where you read this data? Iwould like tosee this one...This may just reflect my ignorance, but I read (and found hard to believe) that Microsoft has implemented RPC over HTTP. Isthis not aHUGE security hole? If I understand it correctly it meansthat good oldHTML or XML can invoke a process using standard webtraffic (port 80)?Is there any permission checking done? what things can beinvoked by RPCover HTTP? Jeeze, to me it looks like the barn door isnow wide open. AmI right, and if so, how can I detect RPCs in web trafficto block thisjunk? Can ANY stateful packet filter see this stuff or isthe patterntoo broad in allowed RPCs? Again, I hope this is not a stupid question orinappropriate format forthis, as somebody else recently said, there is alreadyenough noise onthis list. I would hate to see this list degenerate, ithas been REALLYvaluable to me as a network engineer on occaison.- -- Rodrigo Barbosa <rodrigob () suespammers org> "Quid quid Latine dictum sit, altum viditur" "Be excellent to each other ..." - Bill & Ted (Wyld Stallyns) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (GNU/Linux) iD8DBQFBbYoGpdyWzQ5b5ckRAsMMAJ0bg5ygvKOa1Du66mbW9+gkYfTqVACfewf0 PPz66l4bre4Gtn1J4dYl6AQ= =ZAmy -----END PGP SIGNATURE----- _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.netsys.com/full-disclosure-charter.html
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Current thread:
- Re: Possibly a stupid question RPC over HTTP, (continued)
- 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 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 Rodrigo Barbosa (Oct 13)
- RE: Possibly a stupid question RPC over HTTP winter (Oct 14)
- Re: Possibly a stupid question RPC over HTTP Ron DuFresne (Oct 13)
- Re: Possibly a stupid question RPC over HTTP Cory Whitesell (Oct 13)
- Re: Possibly a stupid question RPC over HTTP Matthew Farrenkopf (Oct 13)
- RE: Possibly a stupid question RPC over HTTP Todd Towles (Oct 13)
- Re: Possibly a stupid question RPC over HTTP S G Masood (Oct 14)
- Re: Possibly a stupid question RPC over HTTP Roberto Gomez BolaƱos (Oct 14)
- RE: Possibly a stupid question RPC over HTTP Burnes, James (Oct 14)
- RE: Possibly a stupid question RPC over HTTP Daniel Sichel (Oct 15)
- RE: Possibly a stupid question RPC over HTTP Airey, John (Oct 21)
- Re: Possibly a stupid question RPC over HTTP Kyle Maxwell (Oct 21)
- RE: Possibly a stupid question RPC over HTTP Airey, John (Oct 22)
(Thread continues...)