Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2016-7124 |
CWE-ID | CWE-502 |
Exploitation vector | Network |
Public exploit | Public exploit code for vulnerability #1 is available. |
Vulnerable software Subscribe |
PHP Universal components / Libraries / Scripting languages |
Vendor | PHP Group |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU16138
Risk: Medium
CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2016-7124
CWE-ID:
CWE-502 - Deserialization of Untrusted Data
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing certain objects in "ext/standard/var_unserializer.c" PHP extension. A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system via "__destruct" or "magic" method calls.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsPHP: 5.6.0 - 7.0.9
External linkshttp://openwall.com/lists/oss-security/2016/09/02/9
http://www.php.net/ChangeLog-5.php
http://www.php.net/ChangeLog-7.php
http://www.securityfocus.com/bid/92756
http://www.securitytracker.com/id/1036680
http://bugs.php.net/bug.php?id=72663
http://github.com/php/php-src/commit/20ce2fe8e3c211a42fee05a461a5881be9a8790e?w=1
http://security.gentoo.org/glsa/201611-22
http://www.tenable.com/security/tns-2016-19
Q & A
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. However, proof of concept for this vulnerability is available.