CVE-2005-2666

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    CVE-2005-2666

    Published: 23 Aug 2005Last Modified: 10 Apr 2026

    Summary:

    Details: SSH, as implemented in OpenSSH before 4.0 and possibly other implementations, stores hostnames, IP addresses, and keys in plaintext in the known_hosts file, which makes it easier for an attacker that has compromised an SSH user's account to generate a list of additional targets that are more likely to have the same password or key.

    References: http://secunia.com/advisories/19243, http://secunia.com/advisories/25098, http://nms.csail.mit.edu/projects/ssh/, ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2006.11/SCOSA-2006.11.txt, http://www.eweek.com/article2/0%2C1759%2C1815795%2C00.asp, http://www.redhat.com/support/errata/RHSA-2007-0257.html, https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10201

    Affected packages

    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