OpenPKG Security Advisory

Publisher Name:          OpenPKG GmbH
Publisher Home:          http://openpkg.com/

Advisory Id (public):    OpenPKG-SA-2005.019
Advisory Type:           OpenPKG Security Advisory (SA)
Advisory Directory:      http://openpkg.com/go/OpenPKG-SA
Advisory Document:       http://openpkg.com/go/OpenPKG-SA-2005.019
Advisory Published:      2008-10-11 12:15 UTC

Issue Id (internal):     OpenPKG-SI-20050906.01
Issue First Created:     2005-09-06
Issue Last Modified:     2006-11-28
Issue Revision:          07


Subject Name:            OpenSSH
Subject Summary:         Secure Shell (SSH)
Subject Home:            http://www.openssh.com/
Subject Versions:        * <= 4.1p1

Vulnerability Id:        none
Vulnerability Scope:     global (not OpenPKG specific)

Attack Feasibility:      run-time
Attack Vector:           remote network
Attack Impact:           privilege escalation

Description:
    A security bug introduced in OpenSSH [1] version 4.0 caused gateway
    ports (SSH client command line option "-o 'GatewayPorts yes'") to
    be accidentally activated for dynamic port forwardings (SSH client
    command line option "-D [address:]port") when the listen address
    was not explicitly specified. As a result, the SSH client performed
    a wildcard bind for the listening socket on the SSH client machine
    instead of a bind to just "localhost". This way the dynamic port
    forwardings can be accessed also from outside the SSH client machine.

References:
    [1] http://www.openssh.com/
    [2] http://www.openpkg.org/tutorial.html#regular-source
    [3] http://www.openpkg.org/tutorial.html#regular-binary
    [4] ftp://ftp.openpkg.org/release/2.4/UPD/openssh-4.1p1-2.4.1.src.rpm
    [5] ftp://ftp.openpkg.org/release/2.4/UPD/
    [6] http://www.openpkg.org/security.html#signature


Primary Package Name:    openssh
Primary Package Home:    http://openpkg.org/go/package/openssh

Affected Distribution:   Affected Branch:  Affected Package:
OpenPKG Community        2.3-SOLID         n/a
OpenPKG Community        2.4-SOLID         openssh-4.1p1-2.4.0
OpenPKG Community        CURRENT           openssh-4.1p1-20050812

Corrected Distribution:  Corrected Branch: Corrected Package:
OpenPKG Community        2.3-SOLID         n/a
OpenPKG Community        2.4-SOLID         openssh-4.1p1-2.4.1
OpenPKG Community        CURRENT           openssh-4.2p1-20050901