Vulnerability identifier: #VU18299

Vulnerability risk: Medium

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-10912

CWE-ID: CWE-502

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Symfony
Web applications / CMS

Vendor: SensioLabs

Description

The disclosed vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insecure call of the unserialize() PHP function in untrusted user-input. A remote attacker can send specially crafted HTTP request to the affected system and delete arbitrary files on the system or display raw data output.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Symfony: 2.8.2 - 4.2.6

---

External links
http://symfony.com/blog/cve-2019-10912-prevent-destructors-with-side-effects-from-being-unserialize...

---

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.