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Upgrading from CFEngine 2 to 3: running the 2 agents side by side with 3

CFEngine 2 network communication is insecure by today’s standards. CFEngine 2 CVE-2016-6329: CFEngine 2 uses Blowfish cipher (1993) which today is considered: Weak Deprecated Subject to key recovery attack No security fixes since 2008. Protocol communications not encrypted; only data transfer (which facilitates attack). Encryption is off by default. CFEngine 3 All communication is encrypted Uses TLS 1.3 (current state of the art) Up to date, maintained, secure from the software vendor Full Enterprise support, with SLA.

January 28, 2020

Updated Windows packages

Recently a security flaw, CVE-2019-1552, has been discovered in OpenSSL. This vulnerability affects the Windows Enterprise agent packages. To mitigate this security vulnerability we have rebuilt CFEngine with the fix to this issue. These packages have been re-released with the version number CFEngine 3.12.2-4. As always, you can download CFEngine Enterprise packages from the download page, Note that only the affected packages have been re-released. CFEngine Community wasn’t affected at all, due to lack of affected feature, Upgrade today, and make your automation even more secure!

August 26, 2019

CFEngine 3.12.2-3, 3.14.0-2 released (mitigating CVE-2019-10164)

On [2019-07-29 Mon] we released new builds of our Enterprise Hub packages for 3.12.2 and 3.14.0. This release addresses CVE-2019-10164. PostgreSQL versions 10.x before 10.9 and versions 11.x before 11.4 are vulnerable to a stack-based buffer overflow. Any authenticated user can overflow a stack-based buffer by changing the user’s own password to a purpose-crafted value. This often suffices to execute arbitrary code as the PostgreSQL operating system account. CFEngine Enterprise LTS versions 3.

Posted by Nick Anderson
August 6, 2019

CVE-2019-9929 - internal authentication secrets leaked in logs

Description The CFEngine engineering team has recently discovered a severe security issue in the CFEngine Enterprise product. CFEngine is using some internal secrets for authentication to the Mission Portal API and the PostgreSQL database when running background maintenance tasks. These internal secrets are randomly generated during the installation process and stored in files which only the root user has access to. Unfortunately, the commands that generate and store the secrets were being logged to the /var/log/CFEngineHub-Install.

May 28, 2019

From black box magic to automation transparency

The CFEngine policy analyzer is an awesome new service introduced in CFEngine 3.13. The policy analyzer allows you to quickly debug policies and inspect what is going on under hood of CFEngine. A known challenge with CFEngine, and most DSL based automation tools, relates to understanding what is actually going on during live operations. Many users view it as “black-box magic”. Unfortunately, the amount of magic and the size of the black box increases with the level of automation.

Posted by Thomas Ryd
January 17, 2019

Security Through Automation

Today’s approach to securing IT infrastructure is passé. In a dynamic world of unpredictable and often frequent infrastructure changes, the traditional approach to security falls short. It is no longer sufficient to just scan frequently for vulnerabilities and then try to interpret this data in real time without (human) error. Additionally, despite smart analytics, this approach to illuminating security issues and remediating them is extremely time consuming. How many organizations can really claim to have identified and fixed all vulnerabilities?

Posted by Thomas Ryd
August 16, 2017

POODLE, SSLv3 and CFEngine

This post clarifies whether CFEngine is affected by the newly published vulnerability in the SSL protocol,POODLE. CFEngine core functionality, i.e. agent-to-hub communication is not affected in any way by the POODLE vulnerability. If the protocol version is set to “classic” or “1”, or is just left to be the default, then all communication happens using the legacy protocol which has nothing to do with SSL. If it is set to “latest” or “2”, then TLS version 1.

Posted by Thomas Ryd
October 20, 2014

Heartbleed Security Update for CFEngine Users and Customers

As you may know, a serious vulnerability was recently announced in OpenSSL, commonly referred to as Heartbleed or more officially by its CVE ID CVE-2014-0160. This vulnerability affects the OpenSSL heartbeat mechanism and allows unauthorized access to private data including encryption keys, encrypted traffic and more. At CFEngine we use OpenSSL both in our infrastructure and in our products. The security of our users and customers is one of our primary concerns, so we immediately began investigating the possible impact of this bug.

Posted by Mahesh Kumar
April 10, 2014
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