PYSEC-2018-108

    Dashboard / Vulnerabilities / PYSEC-2018-108

    PYSEC-2018-108

    Published: 12 Mar 2018Last Modified: 10 Jun 2026

    Summary:

    Details: The SSH server implementation of AsyncSSH before 1.12.1 does not properly check whether authentication is completed before processing other requests. A customized SSH client can simply skip the authentication step.

    References: https://github.com/ronf/asyncssh/commit/c161e26cdc0d41b745b63d9f17b437f073bf7ba4, https://groups.google.com/forum/#!msg/asyncssh-announce/57_5O7kiHSA/8BXZ_hxHAQAJ, https://github.com/advisories/GHSA-97cv-6pjf-5f9q

    Affected packages

    Package

    Name: asyncssh

    Purl: pkg:pypi/asyncssh

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -c161e26cdc0d41b745b63d9f17b437f073bf7ba4

    Affected versions

    0.8.1
    0.8.2
    0.8.3
    0.8.4

    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