CVE-2017-3204

Published: Apr 4, 2017Modified: May 13, 2026

8.1

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 2.2 / Impact: 5.9

Source: NVD

Description

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.

Affected (1)

Products: Golang: Crypto

Golang

1 product

Crypto

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Golang Crypto	Up to 2017-03-17

Related CWEs

CWE-310

References (10)

http://www.securityfocus.com/bid/97481

Source: cret@cert.org

Third Party AdvisoryVDB Entry

https://bridge.grumpy-troll.org/2017/04/golang-ssh-security/

Source: cret@cert.org

Third Party Advisory

https://github.com/golang/crypto/commit/e4e2799dd7aab89f583e1d898300d96367750991

Source: cret@cert.org

PatchThird Party Advisory

https://github.com/golang/go/issues/19767

Source: cret@cert.org

Third Party Advisory

https://godoc.org/golang.org/x/crypto/ssh

Source: cret@cert.org

Vendor Advisory

http://www.securityfocus.com/bid/97481