#VU71574 Code Injection in magento-lts - CVE-2021-41144

Vulnerability identifier: #VU71574

Vulnerability risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-41144

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
magento-lts
Web applications / Modules and components for CMS

Vendor: OPENMAGE

Description

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

The vulnerability exists due to improper input validation within layout block. A remote user can bypass the block blacklist and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

magento-lts: 19.4.0 - 19.4.21, 20.0.0 - 20.0.18

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External links
https://github.com/OpenMage/magento-lts/security/advisories/GHSA-5j2g-3ph4-rgvm
https://github.com/OpenMage/magento-lts/releases/tag/v20.0.19
https://github.com/OpenMage/magento-lts/releases/tag/v19.4.22

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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.