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Test ID:1.3.6.1.4.1.25623.1.0.840271
Category:Ubuntu Local Security Checks
Title:Ubuntu: Security Advisory (USN-612-2)
Summary:The remote host is missing an update for the 'openssh' package(s) announced via the USN-612-2 advisory.
Description:Summary:
The remote host is missing an update for the 'openssh' package(s) announced via the USN-612-2 advisory.

Vulnerability Insight:
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.

This vulnerability only affects operating systems which (like
Ubuntu) are based on Debian. However, other systems can be
indirectly affected if weak keys are imported into them.

We consider this an extremely serious vulnerability, and urge all
users to act immediately to secure their systems.

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:
7.8

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2008-0166
BugTraq ID: 29179
http://www.securityfocus.com/bid/29179
Bugtraq: 20080515 Debian generated SSH-Keys working exploit (Google Search)
http://www.securityfocus.com/archive/1/492112/100/0/threaded
Cert/CC Advisory: TA08-137A
http://www.us-cert.gov/cas/techalerts/TA08-137A.html
CERT/CC vulnerability note: VU#925211
http://www.kb.cert.org/vuls/id/925211
Debian Security Information: DSA-1571 (Google Search)
http://www.debian.org/security/2008/dsa-1571
Debian Security Information: DSA-1576 (Google Search)
http://www.debian.org/security/2008/dsa-1576
https://www.exploit-db.com/exploits/5622
https://www.exploit-db.com/exploits/5632
https://www.exploit-db.com/exploits/5720
http://metasploit.com/users/hdm/tools/debian-openssl/
https://16years.secvuln.info
https://news.ycombinator.com/item?id=40333169
http://sourceforge.net/mailarchive/forum.php?thread_name=48367252.7070603%40shemesh.biz&forum_name=rsyncrypto-devel
http://www.securitytracker.com/id?1020017
http://secunia.com/advisories/30136
http://secunia.com/advisories/30220
http://secunia.com/advisories/30221
http://secunia.com/advisories/30231
http://secunia.com/advisories/30239
http://secunia.com/advisories/30249
http://www.ubuntu.com/usn/usn-612-1
http://www.ubuntu.com/usn/usn-612-2
http://www.ubuntu.com/usn/usn-612-3
http://www.ubuntu.com/usn/usn-612-4
http://www.ubuntu.com/usn/usn-612-7
XForce ISS Database: openssl-rng-weak-security(42375)
https://exchange.xforce.ibmcloud.com/vulnerabilities/42375
CopyrightCopyright (C) 2009 Greenbone AG

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