# MA-550.122015: MyCERT Advisory - Joomla Releases Security Update for CMS

**Date:** 23 Dec 2015  
**Source:** https://www.mycert.org.my/portal/advisory?id=MA-550.122015  
**Advisory ID:** MA-550.122015

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**1.0 Introduction**
Joomla! has released version 3.4.7 of its content management system (CMS) software to address two vulnerabilities in  previous versions. Exploitation of one of these vulnerabilities may allow a remote attacker to take control of an affected website.
**2.0 Impact**
These updates address exploitation of vulnerabilities that may allow a remote attacker to take control of an affected website.  Besides that, we should be aware of malicious actors exploiting unpatched CMS installations, primarily Joomla! installations, to gain control of web servers and launch distributed denial-of-service (DDoS) attacks against critical infrastructure organizations.
**3.0 Affected Products**
The affected product is Web-based Content Management Systems, specifically Joomla! Installation.
|  |
| --- | --- | --- | Priority | Type | Version | High | Core – Session Hardening | Affecting Joomla 1.5 through 3.4.6 | Low | Core - SQL Injection | Affecting Joomla 3.0.0 through 3.4.6 |
**4.0 Recommendations**
MyCERT highly recommended users of these applications to upgrade to the latest version of the affected products:
> 4.1    New installation, download Joomla! Version 3.4.7:
> <https://github.com/joomla/joomla-cms/releases/download/3.4.7/Joomla_3.4.7-Stable-Full_Package.zip>
>
> Please do also refer new installation instruction and technical requirement:
> <https://docs.joomla.org/J3.x:Installing_Joomla>
> <https://www.joomla.org/about-joomla/technical-requirements.html>
>
> 4.2    Upgrade packages, download Joomla! 3:
> <https://github.com/joomla/joomla-cms/releases/tag/3.4.7>
>
> Please read the update instructions before updating.
> <https://docs.joomla.org/J3.x:Updating_from_an_existing_version>
>
> Note: Please remember to clear your browser's cache after upgrading.
>
> 4.3    Please see the documentation wiki for FAQ’s regarding the 3.4.7 release.
> <https://docs.joomla.org/Category:Version_3.4.7_FAQ>
>
> 4.4     Joomla 1.5 and 2.5:
> Joomla does not release updates for EOL versions however patches available for download, which can be found at:
> <https://docs.joomla.org/Security_hotfixes_for_Joomla_EOL_versions>
>
> 4.5      User and administrator are required to refer the Content Management Systems Security and Associated Risks:
> <https://www.us-cert.gov/ncas/alerts/TA13-024A>
Generally, MyCERT advises the users of this software to be updated with the latest security announcements by the vendor and follow best practice security policies to determine which updates should be applied.
For further enquiries, please contact MyCERT through the following channels:
E-mail: [[email protected]](/cdn-cgi/l/email-protection#33504a5156410a0a0a73504a51564140565046415a474a1d5e4a) or [[email protected]](/cdn-cgi/l/email-protection#ef82968c8a9d9baf82968c8a9d9bc1809d88c18296) 
Phone: 1-300-88-2999 (monitored during business hours)
Fax: +603 89453442 
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**5.0 References**
- <https://www.us-cert.gov/ncas/current-activity/2015/12/22/Joomla-Releases-Security-Update-CMS>
- <https://www.joomla.org/announcements/release-news/5643-joomla-3-4-7-released.html>