GO-2020-0013

    Dashboard / Vulnerabilities / GO-2020-0013

    GO-2020-0013

    Published: 14 Apr 2021Last Modified: 20 May 2024

    Summary: Man-in-the-middle attack in golang.org/x/crypto/ssh

    Details: By default host key verification is disabled which allows for man-in-the-middle attacks against SSH clients if ClientConfig.HostKeyCallback is not set.

    References: https://go.dev/cl/38701, https://go.googlesource.com/crypto/+/e4e2799dd7aab89f583e1d898300d96367750991, https://go.dev/issue/19767, https://bridge.grumpy-troll.org/2017/04/golang-ssh-security/

    Affected packages

    Package

    Name: golang.org/x/crypto

    Purl: pkg:golang/golang.org/x/crypto

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -0.0.0-20170330155735-e4e2799dd7aa

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GO-2020-0013 | CVE-DB