Vulnerability identifier: #VU52454

Vulnerability risk: High

CVSSv3.1: 8.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2021-3007

CWE-ID: CWE-502

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
laminas-http
Web applications / Modules and components for CMS

Vendor: laminas

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data, related to the __destruct method of the ZendHttpResponseStream class in Stream.php. A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

laminas-http: 2.0.0 - 2.14.1

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External links
http://github.com/laminas/laminas-http/commits/2.15.x/src/Response/Stream.php
http://github.com/laminas/laminas-http/pull/48
http://github.com/laminas/laminas-http/releases/tag/2.14.2
http://github.com/Ling-Yizhou/zendframework3-/blob/main/zend%20framework3%20%E5%8F%8D%E5%BA%8F%E5%88%97%E5%8C%96%20rce.md
http://research.checkpoint.com/2021/freakout-leveraging-newest-vulnerabilities-for-creating-a-botnet/

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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.