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CVE-2021-43805

7.5 · HIGH

Solidus is a free, open-source ecommerce platform built on Rails.

Published Dec 7, 2021CWE-1333EPSS 1.45%

Overview

CVE-2021-43805 is a high-severity vulnerability. It was published on December 7, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Solidus is a free, open-source ecommerce platform built on Rails. Versions of Solidus prior to 3.1.4, 3.0.4, and 2.11.13 have a denial of service vulnerability that could be exploited during a guest checkout. The regular expression used to validate a guest order's email was subject to exponential backtracking through a fragment like `a.a.` Versions 3.1.4, 3.0.4, and 2.11.13 have been patched to use a different regular expression. The maintainers added a check for email addresses that are no longer valid that will print information about any affected orders that exist. If a prompt upgrade is not an option, a workaround is available. It is possible to edit the file `config/application.rb` manually (with code provided by the maintainers in the GitHub Security Advisory) to check email validity.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/solidusio/solidus/commit/9867153e01e3c3b898cdbcedd7b43375ea922401GitHubgithub.com/solidusio/solidus/security/advisories/GHSA-qxmr-qxh6-2cc9GitHubgithub.com/solidusio/solidus/commit/9867153e01e3c3b898cdbcedd7b43375ea922401GitHubgithub.com/solidusio/solidus/security/advisories/GHSA-qxmr-qxh6-2cc9

How CyberStrike helps

Frequently asked questions

What is CVE-2021-43805?

CVE-2021-43805 is a high-severity vulnerability. It was published on December 7, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2021-43805?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-43805?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-43805?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-43805 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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