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7.5
HIGH CVSS 3.1
CVE-2021-43805
ReDos vulnerability on guest checkout email validation
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 The maintainers added a check for email addresses that are no longer valid that will print information about any affected orders that exist.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.

INFO

Published Date :

Dec. 7, 2021, 6:15 p.m.

Last Modified :

Nov. 21, 2024, 6:29 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2021-43805 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Nebulab solidus
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 HIGH [email protected]
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-43805.

URL Resource
https://github.com/solidusio/solidus/commit/9867153e01e3c3b898cdbcedd7b43375ea922401 Patch Third Party Advisory
https://github.com/solidusio/solidus/security/advisories/GHSA-qxmr-qxh6-2cc9 Exploit Mitigation Third Party Advisory
https://github.com/solidusio/solidus/commit/9867153e01e3c3b898cdbcedd7b43375ea922401 Patch Third Party Advisory
https://github.com/solidusio/solidus/security/advisories/GHSA-qxmr-qxh6-2cc9 Exploit Mitigation Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-43805 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-43805 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-43805 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2021-43805 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://github.com/solidusio/solidus/commit/9867153e01e3c3b898cdbcedd7b43375ea922401
    Added Reference https://github.com/solidusio/solidus/security/advisories/GHSA-qxmr-qxh6-2cc9
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Dec. 08, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Changed Reference Type https://github.com/solidusio/solidus/commit/9867153e01e3c3b898cdbcedd7b43375ea922401 No Types Assigned https://github.com/solidusio/solidus/commit/9867153e01e3c3b898cdbcedd7b43375ea922401 Patch, Third Party Advisory
    Changed Reference Type https://github.com/solidusio/solidus/security/advisories/GHSA-qxmr-qxh6-2cc9 No Types Assigned https://github.com/solidusio/solidus/security/advisories/GHSA-qxmr-qxh6-2cc9 Exploit, Mitigation, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:nebulab:solidus:*:*:*:*:*:*:*:* versions up to (excluding) 2.11.13 *cpe:2.3:a:nebulab:solidus:*:*:*:*:*:*:*:* versions from (including) 3.0.0 up to (excluding) 3.0.4 *cpe:2.3:a:nebulab:solidus:*:*:*:*:*:*:*:* versions from (including) 3.1.0 up to (excluding) 3.1.4
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 5
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.12 }} 0.01%

score

0.31953

percentile