PHP file inclusion in Joomla! - CVE-2018-12712
Published: June 26, 2018
Vulnerability identifier: #VU13475
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-12712
CWE-ID: CWE-98
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Joomla!
Affected software:
Joomla!
Joomla!
Detailed vulnerability description
The vulnerability allows a remote attacker to include and execute arbitrary files on the local system.
The vulnerability exists due to autoload code checks classnames to be valid, using the "class_exists" function in PHP. This function however does not properly validate names in PHP 5.3, which can lead to local file inclusion vulnerability.
Successful exploitation of the vulnerability may allow an attacker to read arbitrary files and under certain circumstances even compromise vulnerable system but requires that Joomla! is using an old version of PHP 5.3.
How to mitigate CVE-2018-12712
Update to version 3.8.9.