Mandrake Linux Security Advisory : openssh (MDKSA-2006:034)

This script is Copyright (C) 2006-2013 Tenable Network Security, Inc.

Synopsis :

The remote Mandrake Linux host is missing one or more security

Description :

A flaw was discovered in the scp local-to-local copy implementation
where filenames that contain shell metacharacters or spaces are
expanded twice, which could lead to the execution of arbitrary
commands if a local user could be tricked into a scp'ing a specially
crafted filename.

The provided updates bump the OpenSSH version to the latest release
version of 4.3p1. A number of differences exist, primarily dealing
with PAM authentication over the version included in Corporate 3.0 and
MNF2. In particular, the default sshd_config now only accepts protocol
2 connections and UsePAM is now disabled by default.

On systems using alternate authentication methods (ie. LDAP) that use
the PAM stack for authentication, you will need to enable UsePAM. Note
that the default /etc/pam.d/sshd file has also been modified to use
the module which will deny access to any users listed
in /etc/ssh/denyusers (by default, this is only the root user). This
is required to preserve the expected behaviour when using
'PermitRootLogin without-password'; otherwise it would still be
possible to obtain a login prompt and login without using keys.

Mandriva Linux 10.1 and newer already have these changes in their
shipped versions. There are new features in OpenSSH and users are
encouraged to review the new sshd_config and ssh_config files when

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 4.6

Family: Mandriva Local Security Checks

Nessus Plugin ID: 20875 (mandrake_MDKSA-2006-034.nasl)

Bugtraq ID:

CVE ID: CVE-2006-0225

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