CVE-2003-0386

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    CVE-2003-0386

    Published: 2 Jul 2003Last Modified: 10 Apr 2026

    Summary:

    Details: OpenSSH 3.6.1 and earlier, when restricting host access by numeric IP addresses and with VerifyReverseMapping disabled, allows remote attackers to bypass "from=" and "user@host" address restrictions by connecting to a host from a system whose reverse DNS hostname contains the numeric IP address.

    References: ftp://patches.sgi.com/support/free/security/advisories/20060703-01-U.asc, http://secunia.com/advisories/21129, http://secunia.com/advisories/21262, http://secunia.com/advisories/21724, http://secunia.com/advisories/22196, http://secunia.com/advisories/23680, http://www.kb.cert.org/vuls/id/978316, http://www.securityfocus.com/archive/1/324016/2003-06-03/2003-06-09/0, http://www.kb.cert.org/vuls/id/978316, http://www.securityfocus.com/archive/1/324016/2003-06-03/2003-06-09/0, http://www.kb.cert.org/vuls/id/978316, http://www.securityfocus.com/archive/1/324016/2003-06-03/2003-06-09/0, http://lists.apple.com/mhonarc/security-announce/msg00038.html, http://support.avaya.com/elmodocs2/security/ASA-2006-174.htm, http://www.kb.cert.org/vuls/id/978316, http://www.redhat.com/support/errata/RHSA-2006-0298.html, http://www.redhat.com/support/errata/RHSA-2006-0698.html, http://www.securityfocus.com/bid/7831, http://www.vmware.com/support/vi3/doc/esx-3069097-patch.html, http://www.vmware.com/support/vi3/doc/esx-9986131-patch.html, https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9894

    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