CVE-2020-4054
Cross-site Scripting in Sanitize
Description
In Sanitize (RubyGem sanitize) greater than or equal to 3.0.0 and less than 5.2.1, there is a cross-site scripting vulnerability. When HTML is sanitized using Sanitize's "relaxed" config, or a custom config that allows certain elements, some content in a math or svg element may not be sanitized correctly even if math and svg are not in the allowlist. You are likely to be vulnerable to this issue if you use Sanitize's relaxed config or a custom config that allows one or more of the following HTML elements: iframe, math, noembed, noframes, noscript, plaintext, script, style, svg, xmp. Using carefully crafted input, an attacker may be able to sneak arbitrary HTML through Sanitize, potentially resulting in XSS (cross-site scripting) or other undesired behavior when that HTML is rendered in a browser. This has been fixed in 5.2.1.
INFO
Published Date :
June 16, 2020, 10:15 p.m.
Last Modified :
Nov. 21, 2024, 5:32 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Upgrade the ruby-sanitize package.
- If using Sanitize's relaxed config or a custom config that allows certain elements, ensure the update is applied.
Public PoC/Exploit Available at Github
CVE-2020-4054 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2020-4054.
| URL | Resource |
|---|---|
| https://github.com/rgrove/sanitize/commit/a11498de9e283cd457b35ee252983662f7452aa9 | Patch Third Party Advisory |
| https://github.com/rgrove/sanitize/releases/tag/v5.2.1 | Release Notes Third Party Advisory |
| https://github.com/rgrove/sanitize/security/advisories/GHSA-p4x4-rw2p-8j8m | Third Party Advisory |
| https://usn.ubuntu.com/4543-1/ | |
| https://www.debian.org/security/2020/dsa-4730 | |
| https://github.com/rgrove/sanitize/commit/a11498de9e283cd457b35ee252983662f7452aa9 | Patch Third Party Advisory |
| https://github.com/rgrove/sanitize/releases/tag/v5.2.1 | Release Notes Third Party Advisory |
| https://github.com/rgrove/sanitize/security/advisories/GHSA-p4x4-rw2p-8j8m | Third Party Advisory |
| https://usn.ubuntu.com/4543-1/ | |
| https://www.debian.org/security/2020/dsa-4730 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-4054 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-2020-4054
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).
安全类各家文库大乱斗
HTML CSS JavaScript Go Python Shell C
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-4054 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-4054 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/rgrove/sanitize/commit/a11498de9e283cd457b35ee252983662f7452aa9 Added Reference https://github.com/rgrove/sanitize/releases/tag/v5.2.1 Added Reference https://github.com/rgrove/sanitize/security/advisories/GHSA-p4x4-rw2p-8j8m Added Reference https://usn.ubuntu.com/4543-1/ Added Reference https://www.debian.org/security/2020/dsa-4730 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Sep. 28, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4543-1/ [No Types Assigned] -
CVE Modified by [email protected]
Jul. 19, 2020
Action Type Old Value New Value Added Reference https://www.debian.org/security/2020/dsa-4730 [No Types Assigned] -
Initial Analysis by [email protected]
Jun. 19, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L Changed Reference Type https://github.com/rgrove/sanitize/commit/a11498de9e283cd457b35ee252983662f7452aa9 No Types Assigned https://github.com/rgrove/sanitize/commit/a11498de9e283cd457b35ee252983662f7452aa9 Patch, Third Party Advisory Changed Reference Type https://github.com/rgrove/sanitize/releases/tag/v5.2.1 No Types Assigned https://github.com/rgrove/sanitize/releases/tag/v5.2.1 Release Notes, Third Party Advisory Changed Reference Type https://github.com/rgrove/sanitize/security/advisories/GHSA-p4x4-rw2p-8j8m No Types Assigned https://github.com/rgrove/sanitize/security/advisories/GHSA-p4x4-rw2p-8j8m Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:sanitize_project:sanitize:*:*:*:*:*:ruby:*:* versions from (including) 3.0.0 up to (excluding) 5.2.1 -
CVE Modified by [email protected]
Jun. 16, 2020
Action Type Old Value New Value Changed Description In Sanitize (RubyGem sanitize) greater than or equal to 3.0.0 and less than 5.2.1, there is a cross-site scripting vulnerability. When HTML is sanitized using Sanitize's "relaxed" config, or a custom config that allows certain elements, some content in a math or svg element may not be sanitized correctly even if math and svg are not in the allowlist. You are likely to be vulnerable to this issue if you use Sanitize's relaxed config or a custom config that allows one or more of the following HTML elements: iframe, math, noembed, noframes, noscript, plaintext, script, style, svg, xmp. Using carefully crafted input, an attacker may be able to sneak arbitrary HTML through Sanitize, potentially resulting in XSS (cross-site scripting) or other undesired behavior when that HTML is rendered in a browser. This has been fixed in 5.2.1. In Sanitize (RubyGem sanitize) greater than or equal to 3.0.0 and less than 5.2.1, there is a cross-site scripting vulnerability. When HTML is sanitized using Sanitize's "relaxed" config, or a custom config that allows certain elements, some content in a math or svg element may not be sanitized correctly even if math and svg are not in the allowlist. You are likely to be vulnerable to this issue if you use Sanitize's relaxed config or a custom config that allows one or more of the following HTML elements: iframe, math, noembed, noframes, noscript, plaintext, script, style, svg, xmp. Using carefully crafted input, an attacker may be able to sneak arbitrary HTML through Sanitize, potentially resulting in XSS (cross-site scripting) or other undesired behavior when that HTML is rendered in a browser. This has been fixed in 5.2.1.
Vulnerability Scoring Details
Base CVSS Score: 7.3
Base CVSS Score: 6.8
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.48 }} -1.16%
score
0.62511
percentile