Date: Mon, 10 Nov 2014 13:14:05 -0500 (EST) From: cve-assign@...re.org To: Jason@...c4.com Cc: cve-assign@...re.org, oss-security@...ts.openwall.com Subject: Re: CVE Request: Qt Creator fails to verify SSH host key -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > they don't check host keys when connecting, which makes a > man-in-the-middle attack trivial. > // TODO: Mechanism for checking the host key. First connection to host: save, later: compare > has received a bit more of a hesitant reaction. The most recent > vendor feedback seems to indicate they're not super interested in > implementing this. We don't feel that this is a fair characterization of the (public) vendor response. There is a vendor response of: This was never considered much of an issue due to the scope of our SSH support. The main use case is developers communicating with their embedded devices that are locally connected, typically via USB. Host key checking is of limited value there, also because the same IP address is often used for different devices. So the anticipated first reaction from users would be "How do I turn it off?". This indicates that the current behavior is intentional behavior. The vendor has made a tradeoff between what they perceive as a security benefit and what they perceive as a support cost. We do not assign CVE IDs based on third-party reports that a vendor should have made a different tradeoff. Admittedly, the vendor might decide to change their tradeoff later (e.g., if they obtain data indicating that USB is actually not a prevalent use case). We agree that it would be nice to have a central place to track findings such as "the SSH security expectations for this product are different from the SSH security expectations for essentially every other product." CVE is not that place. Similarly, there is an opportunity for security improvement if the vendor were to implement key checking, even if the vendor insisted that this would not be enabled by default. This type of opportunity for security improvement cannot have a CVE assignment. - -- CVE assignment team, MITRE CVE Numbering Authority M/S M300 202 Burlington Road, Bedford, MA 01730 USA [ PGP key available through http://cve.mitre.org/cve/request_id.html ] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (SunOS) iQEcBAEBAgAGBQJUYP/lAAoJEKllVAevmvmsZIgH/1AjdVpx/gIRO5y0xTo76NQs Kb+hC7AAXlBT/ySTfmsWOmTxBE9L77sze2vdt1mOZOLeFCkOmxIQDkBmkP3tlx4o TawvLaebWa7e+RG15xLRhXcbUdXa9Fi4oBAMWNL7p+WN1VClh/wTl92EcyELrhp/ iC22Wg9MaJKY7OGm4FuOghkwsM0L13tfoYvGNNsVOty2aWDopoMSzGU9mbvda/OB FwW5KGzBRSD38HTBmwG8eaHWWTWmnHAiT/n4zL7jO7YG6L+ZoYhpUS3Mh/qStlWr bgoXn7P6rlU+u+wPA/ZvSk3wWuLSh7623T+3dADJzeS4Ls1CG3bwi6u5kL8HyBA= =lZ3n -----END PGP SIGNATURE-----
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