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Test ID:1.3.6.1.4.1.25623.1.0.840300
Category:Ubuntu Local Security Checks
Title:Ubuntu: Security Advisory (USN-612-5)
Summary:The remote host is missing an update for the 'openssh' package(s) announced via the USN-612-5 advisory.
Description:Summary:
The remote host is missing an update for the 'openssh' package(s) announced via the USN-612-5 advisory.

Vulnerability Insight:
Matt Zimmerman discovered that entries in ~
/.ssh/authorized_keys
with options (such as 'no-port-forwarding' or forced commands) were
ignored by the new ssh-vulnkey tool introduced in OpenSSH (see
USN-612-2). This could cause some compromised keys not to be
listed in ssh-vulnkey's output.

This update also adds more information to ssh-vulnkey's manual page.

Original advisory details:

A weakness has been discovered in the random number generator used
by OpenSSL on Debian and Ubuntu systems. As a result of this
weakness, certain encryption keys are much more common than they
should be, such that an attacker could guess the key through a
brute-force attack given minimal knowledge of the system. This
particularly affects the use of encryption keys in OpenSSH, OpenVPN
and SSL certificates.

Affected Software/OS:
'openssh' package(s) on Ubuntu 7.04, Ubuntu 7.10, Ubuntu 8.04.

Solution:
Please install the updated package(s).

CVSS Score:
5.0

CVSS Vector:
AV:N/AC:L/Au:N/C:P/I:N/A:N

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2008-2285
http://www.ubuntu.com/usn/usn-612-5
XForce ISS Database: sshvulnkey-authorizedkeys-weak-security(42568)
https://exchange.xforce.ibmcloud.com/vulnerabilities/42568
CopyrightCopyright (C) 2009 Greenbone AG

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