Vulnerability identifier: #VU50563

Vulnerability risk: Low

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21031

CWE-ID: CWE-613

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Adobe Commerce (formerly Magento Commerce)
Web applications / E-Commerce systems
Magento Open Source
Web applications / E-Commerce systems

Vendor: Magento, Inc

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient session expiration issue. A remote non-authenticated attacker can obtain or guess session token and gain unauthorized access to session that belongs to another user.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Adobe Commerce (formerly Magento Commerce): 2.4.0 - 2.4.1, 2.3.0 - 2.3.6, 2.2.0 - 2.2.11, 2.0.0 - 2.0.18, 2.1.0 - 2.1.18

Magento Open Source: 2.3.0 - 2.3.6, 2.4.0 - 2.4.1, 2.2.0 - 2.2.11, 2.1.0 - 2.1.18, 2.0.0 - 2.0.18

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External links
http://helpx.adobe.com/security/products/magento/apsb21-08.html

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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.