Re: [Sidrops] trying to limit RP processing variability
Job Snijders <job@ntt.net> Thu, 16 April 2020 15:02 UTC
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Date: Thu, 16 Apr 2020 17:01:42 +0200
From: Job Snijders <job@ntt.net>
To: sidrops@ietf.org
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Subject: Re: [Sidrops] trying to limit RP processing variability
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On Thu, Apr 16, 2020, at 15:30, Randy Bush wrote: > >>> An attacker who can delete files can as easily replace them with > >>> something else with the same result. > >> not really. > > I cannot think of a case where an attack can manipulate the rsync > > exchange, impersonate the rsync server, or manipulate the file system > > of the legitimate rsync server in such a way that they can signal > > to an rsync client to delete existing files but not to replace them > > partially or completely. > > > > What am I missing? > > 6486 4.2 > > fileList: > This field is a sequence of FileAndHash objects. There is one > FileAndHash entry for each currently valid signed object that has > been published by the authority (at this publication point). Each > FileAndHash is an ordered pair consisting of the name of the file > in the repository publication point (directory) that contains the > object in question and a hash of the file's contents. > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ I think I see an instance of miscommunication: I think Martin's perspective is that whether the files are deleted or modified by MITM, the RP outcome is the same: the PP has to be tossed. I don't think Martin suggested that files can trivially be replaced, just that deletion or tampering have the same effect. Right? Kind regards, Job
- [Sidrops] trying to limit RP processing variabili… Stephen Kent
- Re: [Sidrops] trying to limit RP processing varia… Job Snijders
- Re: [Sidrops] trying to limit RP processing varia… Stephen Kent
- Re: [Sidrops] trying to limit RP processing varia… Job Snijders
- Re: [Sidrops] trying to limit RP processing varia… Robert Kisteleki
- Re: [Sidrops] trying to limit RP processing varia… Martin Hoffmann
- Re: [Sidrops] trying to limit RP processing varia… Stephen Kent
- Re: [Sidrops] trying to limit RP processing varia… Di Ma
- Re: [Sidrops] trying to limit RP processing varia… Robert Kisteleki
- Re: [Sidrops] trying to limit RP processing varia… Claudio Jeker
- Re: [Sidrops] trying to limit RP processing varia… Stephen Kent
- Re: [Sidrops] trying to limit RP processing varia… Robert Kisteleki
- Re: [Sidrops] trying to limit RP processing varia… Martin Hoffmann
- Re: [Sidrops] trying to limit RP processing varia… Job Snijders
- Re: [Sidrops] trying to limit RP processing varia… Stephen Kent
- Re: [Sidrops] trying to limit RP processing varia… Stephen Kent
- Re: [Sidrops] trying to limit RP processing varia… Martin Hoffmann
- Re: [Sidrops] trying to limit RP processing varia… Di Ma
- Re: [Sidrops] trying to limit RP processing varia… Job Snijders
- Re: [Sidrops] trying to limit RP processing varia… Martin Hoffmann
- Re: [Sidrops] trying to limit RP processing varia… Claudio Jeker
- Re: [Sidrops] trying to limit RP processing varia… Tim Bruijnzeels
- Re: [Sidrops] trying to limit RP processing varia… Tim Bruijnzeels
- Re: [Sidrops] trying to limit RP processing varia… Jay Borkenhagen
- Re: [Sidrops] trying to limit RP processing varia… Randy Bush
- Re: [Sidrops] trying to limit RP processing varia… Robert Kisteleki
- Re: [Sidrops] trying to limit RP processing varia… Martin Hoffmann
- Re: [Sidrops] trying to limit RP processing varia… Tim Bruijnzeels
- Re: [Sidrops] trying to limit RP processing varia… Martin Hoffmann
- Re: [Sidrops] trying to limit RP processing varia… Martin Hoffmann
- Re: [Sidrops] trying to limit RP processing varia… Randy Bush
- Re: [Sidrops] trying to limit RP processing varia… Stephen Kent
- Re: [Sidrops] trying to limit RP processing varia… Stephen Kent
- Re: [Sidrops] trying to limit RP processing varia… Stephen Kent
- Re: [Sidrops] trying to limit RP processing varia… Job Snijders
- Re: [Sidrops] trying to limit RP processing varia… Claudio Jeker
- Re: [Sidrops] trying to limit RP processing varia… Martin Hoffmann
- Re: [Sidrops] trying to limit RP processing varia… Martin Hoffmann
- Re: [Sidrops] trying to limit RP processing varia… Randy Bush
- Re: [Sidrops] trying to limit RP processing varia… Stephen Kent
- Re: [Sidrops] trying to limit RP processing varia… Stephen Kent
- Re: [Sidrops] trying to limit RP processing varia… George Michaelson
- Re: [Sidrops] trying to limit RP processing varia… Tim Bruijnzeels
- Re: [Sidrops] trying to limit RP processing varia… Martin Hoffmann
- Re: [Sidrops] trying to limit RP processing varia… Martin Hoffmann
- Re: [Sidrops] trying to limit RP processing varia… Randy Bush
- Re: [Sidrops] trying to limit RP processing varia… Stephen Kent
- Re: [Sidrops] trying to limit RP processing varia… Rob Austein
- Re: [Sidrops] trying to limit RP processing varia… Job Snijders
- Re: [Sidrops] trying to limit RP processing varia… Stephen Kent