CVE-2019-20922
Handlebars Regular Expression Denial of Service (ReDoS)
Description
Handlebars before 4.4.5 allows Regular Expression Denial of Service (ReDoS) because of eager matching. The parser may be forced into an endless loop while processing crafted templates. This may allow attackers to exhaust system resources.
INFO
Published Date :
Sept. 30, 2020, 6:15 p.m.
Last Modified :
July 21, 2021, 11:39 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
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-2019-20922.
| URL | Resource |
|---|---|
| https://github.com/handlebars-lang/handlebars.js/commit/8d5530ee2c3ea9f0aee3fde310b9f36887d00b8b | Patch Third Party Advisory |
| https://snyk.io/vuln/SNYK-JS-HANDLEBARS-480388 | Third Party Advisory |
| https://www.npmjs.com/advisories/1300 | Third Party Advisory |
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-2019-20922 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-20922 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 [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Jul. 21, 2021
Action Type Old Value New Value Changed CWE CWE-835 CWE-400 -
Initial Analysis by [email protected]
Oct. 07, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/handlebars-lang/handlebars.js/commit/8d5530ee2c3ea9f0aee3fde310b9f36887d00b8b No Types Assigned https://github.com/handlebars-lang/handlebars.js/commit/8d5530ee2c3ea9f0aee3fde310b9f36887d00b8b Patch, Third Party Advisory Changed Reference Type https://snyk.io/vuln/SNYK-JS-HANDLEBARS-480388 No Types Assigned https://snyk.io/vuln/SNYK-JS-HANDLEBARS-480388 Third Party Advisory Changed Reference Type https://www.npmjs.com/advisories/1300 No Types Assigned https://www.npmjs.com/advisories/1300 Third Party Advisory Added CWE NIST CWE-835 Added CPE Configuration OR *cpe:2.3:a:handlebarsjs:handlebars:*:*:*:*:*:node.js:*:* versions from (including) 4.0.0 up to (excluding) 4.4.5
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-20922 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-2019-20922
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.19 }} 0.02%
score
0.55323
percentile