Date: Wed, 18 Nov 2015 18:35:50 +0100 From: Peter Bex <peter@...e-magic.net> To: cve-assign@...re.org Cc: oss-security@...ts.openwall.com Subject: Re: CVE request for path traversal / info leak bug in Spiffy web server On Wed, Nov 18, 2015 at 12:15:41PM -0500, cve-assign@...re.org wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > > http://lists.gnu.org/archive/html/chicken-announce/2015-11/msg00000.html > > > if you are using awful, > > chickadee, pastiche, qwiki, websockets or any other egg that uses Spiffy > > as HTTP server, your server is vulnerable as well. > > > Spiffy 5.4 eliminates the > > vulnerability without requiring the fix for the CHICKEN core. > > Use CVE-2015-8235 for the Spiffy vulnerability. Thank you. > > The issue with the CHICKEN core procedures has been addressed by > > edd4926bb4f4c97760a0e03b0d0e8210398fe967 in the git repository, but it > > is not in any stable release yet. > > > > http://code.call-cc.org/cgi-bin/gitweb.cgi?p=chicken-core.git;a=commit;h=edd4926bb4f4c97760a0e03b0d0e8210398fe967 > > If this is a CHICKEN core vulnerability, it needs a separate CVE ID. > The description above -- especially the 'supposed to be "atomic"' > comment -- suggests that the code is unambiguously wrong, but the > commit message presents the issue differently. Also, it appears that > introducing '/' characters into strings is a general problem for any > program that prohibits only '/' characters in user-supplied filenames > (e.g., because the program, for whatever reason, can only be used on > UNIX platforms). Is there a rationale for not considering this a > CHICKEN vulnerability? I'm not 100% sure, but I think it was not considered to be a vulnerability as such because, while it's indeed unambiguously wrong, it doesn't directly present a vulnerability. It's only, like you say, when an application prohibits only '/' characters, when this results in a vulnerability. I trust your judgement on this, so if this is worth a CVE ID, please assign one. Regards, Peter Bex Download attachment "signature.asc" of type "application/pgp-signature" (491 bytes)
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