#VU11343 Security restrictions bypass in PHP - CVE-2018-10545

Vulnerability identifier: #VU11343

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-10545

CWE-ID: CWE-200

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
PHP
Universal components / Libraries / Scripting languages

Vendor: PHP Group

Description
The vulnerability allows a local attacker to bypass security restrictions and obtain potentially sensitive information on the target system.

The weakness exists due to improper access controls. A local attacker can change UID and GID, PHP-FPM sets pool worker processes to be dumpable, attach to the PHP-FPM workers and gain access to any restricted resources that are not supposed to be allowed.

Mitigation
Update to version 7.0.29 or 7.2.4.

Vulnerable software versions

PHP: 7.0.28, 7.2.3

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External links
https://bugs.php.net/bug.php?id=75605

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.