Vulnerability in Nebulab Solidus
CVE-2021-43805
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 The maintainers added a check for email addresses that are no longer valid that will print information about any affected orders that exist.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.
Vulnerability class: ReDoS (Regular Expression Denial of Service)
EPSS: 0.014 (69.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Nebulab Solidus
- Solidusio Solidus — versions >= 3.1.0, < 3.1.4, >= 3.0.0, < 3.0.4, < 2.11.13
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Third Party Advisory, Mitigation)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-43805?
- CVE-2021-43805 is a high-severity vulnerability in Nebulab Solidus, classified under Inefficient Regular Expression Complexity. CVSS score: 7.5/10. Published 2021-12-07.
- How severe is CVE-2021-43805?
- High severity. CVSS v3 base score is 7.5 out of 10.