Documentation Security Beat: Difference between revisions

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.

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+== Disable SSL 3.0 and RC4 ==
-{|- style="width: 40%; margin: auto;"
+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.
-! style="width: 70%;" |Toool || style="width: 10%; text-align: center;" | To do || Writer
-|-
-|style="text-align: left;" | [[Features/DynamicFirewall | Dynamic Firewall]] || yes ||
-|-
-|style="text-align: left;" | [[Features/RemoveSETUID |Remove SETUID]] || yes ||
-|-
-|style="text-align: left;"| [http://0pointer.de/public/systemd-man/pam_systemd.html pam_systemd] || yes ||
-|-
-|style="text-align: left;"| freeipa (F15) || yes ||
-|-
-|style="text-align: left;"| OpenSCAP (secstat, firstaidkit) || yes/no || [[User:lewis41|Luigi Votta]]
-|-
-|style="text-align: left;"| DogTag Certificate System (PKI-*) || yes/no ||
-|-
-|style="text-align: left;"| SELinux Enhancements || yes/no ||
-|-
-|style="text-align: left;"| polkit-qt || yes/no ||
-|-
-|style="text-align: left;"| sectool || yes/no ||
-|-
-|style="text-align: left;"| dnssec-tools & dnssec-config || yes/no ||
-|-
-|}
-= Security =
+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.
-This section describes the security changes and enhancements available in Fedora 15.
-== OpenSCAP ==
+'''Note (Use note tag)''' - All applications that use TLS  from NSS are not affected by this change.
-First introduced in Fedora 14, OpenSCAP is a set of open source libraries providing an easier path for integration of the SCAP line of standards, managed by NIST and created to provide a standardized approach to maintaining the security of enterprise systems, such as automatically verifying the presence of patches, checking system security configuration settings, and examining systems for signs of compromise.
-In Fedora 15, '''openscap''', the set of open source libraries enabling integration of the SCAP line of standards, has been upgraded from version 0.6.3 to 0.6.8. During these development stage there has been introduced full support for perl regular expression by default, OVAL float type support, XSL transformation improvements and Dublin Core support, added OVAL schemas version 5.6 and improved XCCDF reporting.
+== 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
-'''secstate''', the Security State Configuration Tool, has been rebuilt in Fedora 15 against version 0.4.1.
+== 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.
-'''firstaidkit''', the System Rescue Tool that automates simple and common system recovery tasks, has been upgraded from 0.2.17 to version 0.2.18.
+== 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.

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