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Test ID:1.3.6.1.4.1.25623.1.0.902559
Category:General
Title:Ruby Random Number Values Information Disclosure Vulnerability
Summary:This host is installed with Ruby and is prone to information; disclosure vulnerability.
Description:Summary:
This host is installed with Ruby and is prone to information
disclosure vulnerability.

Vulnerability Insight:
The flaw exists because ruby does not reset the random seed upon forking,
which makes it easier for context-dependent attackers to predict the values
of random numbers by leveraging knowledge of the number sequence obtained in
a different child process.

Vulnerability Impact:
Successful exploits may allow attackers to predict random number values.

Affected Software/OS:
Ruby Versions prior to Ruby 1.8.6-p114.

Solution:
Upgrade to Ruby version 1.8.6-p114 or later.

CVSS Score:
5.0

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

Cross-Ref: BugTraq ID: 49126
Common Vulnerability Exposure (CVE) ID: CVE-2011-3009
http://www.securityfocus.com/bid/49126
http://redmine.ruby-lang.org/issues/show/4338
http://www.openwall.com/lists/oss-security/2011/07/20/1
http://www.redhat.com/support/errata/RHSA-2011-1581.html
RedHat Security Advisories: RHSA-2012:0070
http://rhn.redhat.com/errata/RHSA-2012-0070.html
XForce ISS Database: ruby-random-number-weak-security(69157)
https://exchange.xforce.ibmcloud.com/vulnerabilities/69157
CopyrightCopyright (C) 2011 Greenbone Networks GmbH

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