Vulnerability identifier: #VU16117
Vulnerability risk: Low
CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-264
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
PHP
Universal components / Libraries /
Scripting languages
Vendor: 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.
Mitigation
Install update from vendor's website.
Vulnerable software versions
PHP: 5.6.0 - 5.6.8, 5.5.0 - 5.5.24, 5.4.0 - 5.4.40
External links
http://bugs.php.net/bug.php?id=68598
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.