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From: Robin Rosenberg <robin.rosenberg.lists@dewire.com>
To: "Shawn O. Pearce" <spearce@spearce.org>
Cc: git@vger.kernel.org
Subject: Re: [PATCH] Permit a wider range of repository names in jgit daemon requests
Date: Tue, 6 Jan 2009 00:07:43 +0100	[thread overview]
Message-ID: <200901060007.43909.robin.rosenberg.lists@dewire.com> (raw)
In-Reply-To: <20090105024622.GC20973@spearce.org>

måndag 05 januari 2009 03:46:22 skrev Shawn O. Pearce:
> The earlier restriction was too narrow for some applications, for
> example repositories named "jgit.dev" and "jgit.test" are perfectly
> valid Git repositories and should still be able to be served by
> the daemon.
> 
> By blocking out only uses of ".." as a path component and Windows
> UNC paths (by blocking "\") we can reasonably prevent the client
> from escaping the base dirctories configured in the daemon.
> 
> +		if (name.startsWith("../") || name.contains("/../")
> +				|| name.contains("\\"))

//host/share also works as UNC path (even the DOS commands support it, provided
you quote the paths) and if you block // shuldn't '/', and '[A-Z]:' also be blocked? 
\\ is a UNC-prefix only at the beginning of a path so if / need not be filtered, nor 
does //. Inside a path \\ is the same as \ AFAIK (except directly after the drive letter.
This should probablybe factored out into a utilty so we can have a simple unit test for it.

-- robin

      reply	other threads:[~2009-01-05 23:09 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-23  0:27 [JGIT PATCH 00/13] Add receive-pack server side support Shawn O. Pearce
2008-12-23  0:27 ` [JGIT PATCH 01/13] Fix invalid "double checked locking" in InflaterCache Shawn O. Pearce
2008-12-23  0:27   ` [JGIT PATCH 02/13] Cleanup stupid release of the cached Inflater in IndexPack Shawn O. Pearce
2008-12-23  0:27     ` [JGIT PATCH 03/13] Cache an Inflater inside a WindowCursor and reuse it as much as possible Shawn O. Pearce
2008-12-23  0:27       ` [JGIT PATCH 04/13] Make RefDatabase thread-safe Shawn O. Pearce
2008-12-23  0:27         ` [JGIT PATCH 05/13] Make PackFile thread-safe Shawn O. Pearce
2008-12-23  0:27           ` [JGIT PATCH 06/13] Make Repository thread-safe Shawn O. Pearce
2008-12-23  0:27             ` [JGIT PATCH 07/13] Don't open a PackFile multiple times on scanForPacks Shawn O. Pearce
2008-12-23  0:27               ` [JGIT PATCH 08/13] Expose RepositoryConfig.getBoolean so applications can use it Shawn O. Pearce
2008-12-23  0:27                 ` [JGIT PATCH 09/13] Add AnyObjectId.copyTo(StringBuilder) Shawn O. Pearce
2008-12-23  0:27                   ` [JGIT PATCH 10/13] Add compare-and-swap semantics to RefUpdate Shawn O. Pearce
2008-12-23  0:27                     ` [JGIT PATCH 11/13] Allow null new ObjectId during RefUpdate.delete Shawn O. Pearce
2008-12-23  0:27                       ` [JGIT PATCH 12/13] Implement the git-receive-pack process in Java Shawn O. Pearce
2008-12-23  0:27                         ` [JGIT PATCH 13/13] Add basic git daemon support to publish receive-pack Shawn O. Pearce
2009-01-03 23:48                           ` Robin Rosenberg
2009-01-05  2:46                             ` [PATCH] Permit a wider range of repository names in jgit daemon requests Shawn O. Pearce
2009-01-05 23:07                               ` Robin Rosenberg [this message]

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