Published: 04/04/2017 Updated: 07/07/2020

CVSS v2 Base Score: 6.8 | Impact Score: 6.4 | Exploitability Score: 8.6

CVSS v3 Base Score: 8.1 | Impact Score: 5.9 | Exploitability Score: 2.2

VMScore: 605

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

The Go SSH library (x/crypto/ssh) by default does not verify host keys, facilitating man-in-the-middle attacks. Default behavior changed in commit e4e2799 to require explicitly registering a hostkey verification mechanism.

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golang crypto

Debian Bug report logs - #859655 golang-gocrypto: CVE-2017-3204 Package: src:golang-gocrypto; Maintainer for src:golang-gocrypto is Debian Go Packaging Team <team+pkg-go@trackerdebianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Wed, 5 Apr 2017 15:06:05 UTC Owned by: Michael Lustfield <mic ...

The Go SSH library (x/crypto/ssh) by default does not verify host keys, facilitating man-in-the-middle attacks Default behavior changed in commit e4e2799 to require explicitly registering a hostkey verification mechanism ...

easy way to distribute commands over ssh.

grapes grapes is lightweight tool designed to distribute commands over ssh with ease Update (25/04/2019) Handshake validation is now in place in order to fix CVE-2017-3204, The validation will use the built-in fingerprint list ~/ssh/known_hosts as default In order to add your ssh server fingerprint to known_hosts run the following: $ ssh-keyscan -H YOURHOSTCOM >&

NVD-CWE-noinfo https://godoc.org/golang.org/x/crypto/ssh https://github.com/golang/go/issues/19767 https://github.com/golang/crypto/commit/e4e2799dd7aab89f583e1d898300d96367750991 https://bridge.grumpy-troll.org/2017/04/golang-ssh-security/http://www.securityfocus.com/bid/97481 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=859655 https://nvd.nist.gov https://github.com/yaronsumel/grapes https://access.redhat.com/security/cve/cve-2017-3204

CVE-2017-3204

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