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= OpenSCAP =
== Disable SSL 3.0 and RC4 ==


== Abstract ==
The SSL 3.0 protocol and the RC4 cipher are considered insecure and vulnerable to attacks. As such, these two are disabled by default for all Fedora components that use the system-wide crypto policies.  This includes gnutls and openssl libraries, and all the applications based on them.
Fedora 14 brings in support of the SCAP (Security Content Automation Protocol). A library called '''OpenSCAP''' that provides development framework and several SCAP scanning tools are included in the distribution. OVAL and XCCDF contents specific for Fedora 14 that can be used for automated system configuration checking are also provided.


== Description ==
Applications or environments that require SSL 3.0 or RC4 can use [https://github.com/nmav/fedora-crypto-policies/blob/master/crypto-policies.8.txt update-crypto-policies] to globally switch to the LEGACY policy to enable SSL 3.0 and RC4.
'''OpenSCAP''' is an open-source framework for SCAP developers.
SCAP is a line of standards managed by [http://scap.nist.gov/index.html NIST] (National Institute of Standards and Technology). It was created to provide a standardized approach ''to maintaining the security'' of systems, such as automatically verifying the presence of patches, checking system security configuration settings, and examining systems for signs of compromise.


The SCAP suite contains multiple complex data exchange formats that are to be used to transmit important vulnerability, configuration, and other security data. Historically, there have been few tools that provide a way to query this data in the needed format. The OpenSCAP project aims to create a framework of libraries to improve the accessibility of SCAP and enhance the usability of the information it represents.
'''Note (Use note tag)''' - All applications that use TLS  from NSS are not affected by this change.


The tools based on OpenSCAP library which are included in this Fedora feature are:
== OpenSSH 7.1 ==
* oscap-scan - command line scanner driven by OVAL/XCCDF content
The OpenSSH project continues to improve the security of network communication with the release of OpenSSH version 7.1Details of the release are available at http://www.openssh.com/txt/release-7.1
* secstate - tool that attempts to streamline the Certification and Accreditation (C&A) process of Linux systems by providing a mechanism to verify, validate, and provide remediation to security relevant configuration items.
* firstaidkit-plugin-openscap - Plugin for [[Features/FirstAidKit | FirstAidKit]] which allows user to perform basic automated security audit and evaluate the results in text or graphical environment.  


With this feature installed, the user can use different ways to perform automatic scan of his system and make sure the system is in compliance with defined security configuration. The user is enabled to automatically remediate the system.
== Package Hardening ==
 
Packages compiled for Fedora 23 will be compiled with a position-independent code flag enabled by default. This was an optional setting that as a default will protect users from certain potential security vulnerabilities.
== References ==
* [https://fedoraproject.org/wiki/Features/OpenSCAP OpenSCAP] on Fedora wiki
* [http://www.open-scap.org/page/Documentation Documentations] on project site
* [http://www.open-scap.org/doc/ open-scap] library documentations on project site
* [https://fedorahosted.org/secstate/ secstate] (Security State) on Fedora Hosted
* [https://fedoraproject.org/wiki/Features/FirstAidKit FirstAidKit] on Fedora wiki


== Standardized Passphrase Policy  ==
A common password policy is being utilized to provide a set of consistent rules for password policies. These rules can be modified locally to fit user needs.





Revision as of 02:59, 28 August 2015

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Disable SSL 3.0 and RC4

The SSL 3.0 protocol and the RC4 cipher are considered insecure and vulnerable to attacks. As such, these two are disabled by default for all Fedora components that use the system-wide crypto policies. This includes gnutls and openssl libraries, and all the applications based on them.

Applications or environments that require SSL 3.0 or RC4 can use update-crypto-policies to globally switch to the LEGACY policy to enable SSL 3.0 and RC4.

Note (Use note tag) - All applications that use TLS from NSS are not affected by this change.

OpenSSH 7.1

The OpenSSH project continues to improve the security of network communication with the release of OpenSSH version 7.1. Details of the release are available at http://www.openssh.com/txt/release-7.1

Package Hardening

Packages compiled for Fedora 23 will be compiled with a position-independent code flag enabled by default. This was an optional setting that as a default will protect users from certain potential security vulnerabilities.

Standardized Passphrase Policy

A common password policy is being utilized to provide a set of consistent rules for password policies. These rules can be modified locally to fit user needs.