CVE-2018-17856: Joomla RCE Vulnerability
Summary
CVE-2018-17856: Joomla RCE Vulnerability. Affects joomla/framework versions >= 2.5.4, < 3.8.13. Fixed in 3.8.13. How to fix ↓
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Background
Joomla! is an open-source content management system (CMS) that allows users to build and manage websites. The com_joomlaupdate component in Joomla! versions before 3.8.13 is vulnerable to remote code execution (RCE). This component is responsible for updating the Joomla! CMS. By default, Administrator-level users have access to com_joomlaupdate, making it possible for an attacker to exploit this vulnerability and execute arbitrary code.
Vulnerability Detail
The vulnerability in com_joomlaupdate allows an attacker to execute arbitrary code on a Joomla! website. By exploiting this vulnerability, an attacker can gain unauthorized access to the website and potentially perform malicious actions, such as modifying or stealing sensitive data, defacing the website, or installing malware. The vulnerability is rated as HIGH severity with a CVSS score of 7.2.
How To Fix
Minimum fixed version
3.8.13
This is the first release that contains the fix.
composer require joomla/framework:3.8.13Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is essential to apply the official patch or update to the latest version of Joomla! to mitigate the risk of exploitation.
Conclusion
The Joomla RCE vulnerability (CVE-2018-17856) in the com_joomlaupdate component allows for the execution of arbitrary code on vulnerable Joomla! websites. To mitigate the risk, it is essential to update Joomla! to version 3.8.13 or later. Regularly updating the CMS and following best security practices will help protect against known vulnerabilities. For further support on vulnerability remediation, contact DevNack.com.
See every vulnerability recorded for joomla/framework →
FAQ
Joomla! is an open-source content management system (CMS) used for building and managing websites.
com_joomlaupdate is a component in Joomla! responsible for updating the CMS to the latest version.
Joomla! websites running versions before 3.8.13 are affected by this vulnerability.
By exploiting this vulnerability, an attacker can execute arbitrary code on a Joomla! website, potentially gaining unauthorized access, modifying or stealing data, defacing the website, or installing malware.
To protect your Joomla! website, it is crucial to update to version 3.8.13 or later and regularly apply updates to the CMS.
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