#VU16117 Security restrictions bypass in PHP - CVE-2015-4026
Published: November 27, 2018
Vulnerability identifier: #VU16117
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2015-4026
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
PHP
PHP
Software vendor:
PHP Group
PHP Group
Description
The vulnerability allows a remote attacker to bypass security restrictions on the target system.
The weakness exists due to the pcntl_exec implementation in PHP before 5.4.41, 5.5.x before 5.5.25, and 5.6.x before 5.6.9 truncates a pathname upon encountering a x00 character. A remote attacker can bypass intended extension restrictions and execute files with unexpected names via a crafted first argument.
The weakness exists due to the pcntl_exec implementation in PHP before 5.4.41, 5.5.x before 5.5.25, and 5.6.x before 5.6.9 truncates a pathname upon encountering a x00 character. A remote attacker can bypass intended extension restrictions and execute files with unexpected names via a crafted first argument.
Remediation
Install update from vendor's website.