Vulnerability identifier: #VU21108

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-16318

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Pimcore
Web applications / CMS

Vendor: Pimcore

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient validation of long files names. A remote authenticated attacker can supply a .php file with name that contains 256 characters, bypass the implemented security mechanisms that was supposed to change the uploaded file extension into .php.txt file, and execute arbitrary PHP code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Pimcore: 5.7.0

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External links
http://github.com/pimcore/pimcore/commit/732f1647cc6e0a29b5b1f5d904b4d726b5e9455f

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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