Vulnerability identifier: #VU71571

Vulnerability risk: Medium

CVSSv3.1: 4.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21395

CWE-ID: CWE-352

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 attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin within the password reset functionality. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

magento-lts: 20.0.0 - 20.0.18, 19.4.0 - 19.4.21

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External links
http://github.com/OpenMage/magento-lts/security/advisories/GHSA-r3c9-9j5q-pwv4
http://github.com/OpenMage/magento-lts/releases/tag/v20.0.19
http://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 non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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