| id: GO-2020-0013 |
| modules: |
| - module: golang.org/x/crypto |
| versions: |
| - fixed: 0.0.0-20170330155735-e4e2799dd7aa |
| vulnerable_at: 0.0.0-20170317163734-459e26527287 |
| packages: |
| - package: golang.org/x/crypto/ssh |
| symbols: |
| - NewClientConn |
| derived_symbols: |
| - Dial |
| summary: Man-in-the-middle attack in golang.org/x/crypto/ssh |
| description: |- |
| By default host key verification is disabled which allows for man-in-the-middle |
| attacks against SSH clients if ClientConfig.HostKeyCallback is not set. |
| published: 2021-04-14T20:04:52Z |
| cves: |
| - CVE-2017-3204 |
| ghsas: |
| - GHSA-xhjq-w7xm-p8qj |
| credits: |
| - Phil Pennock |
| references: |
| - fix: https://go.dev/cl/340830 |
| - fix: https://go.googlesource.com/crypto/+/e4e2799dd7aab89f583e1d898300d96367750991 |
| - report: https://go.dev/issue/19767 |
| - web: https://bridge.grumpy-troll.org/2017/04/golang-ssh-security/ |
