7.5
HIGH
CVE-2020-7661
Apache URL-Regex Regular Expression Denial of Service (DoS)
Description

all versions of url-regex are vulnerable to Regular Expression Denial of Service. An attacker providing a very long string in String.test can cause a Denial of Service.

INFO

Published Date :

June 4, 2020, 6:15 p.m.

Last Modified :

June 10, 2020, 3:26 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2020-7661 has a 12 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2020-7661 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 Url-regex_project url-regex
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-2020-7661.

URL Resource
https://github.com/kevva/url-regex/issues/70 Exploit Third Party Advisory
https://snyk.io/vuln/SNYK-JS-URLREGEX-569472 Exploit 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).

None

TypeScript

Updated: 9 months ago
0 stars 0 fork 0 watcher
Born at : Feb. 21, 2024, 1:37 a.m. This repo has been linked 1 different CVEs too.

None

TypeScript

Updated: 1 year, 8 months ago
0 stars 0 fork 0 watcher
Born at : March 21, 2023, 5:46 a.m. This repo has been linked 1 different CVEs too.

None

Shell TypeScript

Updated: 2 years, 3 months ago
0 stars 0 fork 0 watcher
Born at : July 31, 2022, 6:48 p.m. This repo has been linked 1 different CVEs too.

None

Updated: 4 months, 4 weeks ago
8 stars 1 fork 1 watcher
Born at : June 21, 2022, 7:45 a.m. This repo has been linked 943 different CVEs too.

Lightweight library for creating a service that dynamically makes updates to a social profile account periodically.

TypeScript

Updated: 2 years, 2 months ago
1 stars 1 fork 1 watcher
Born at : April 10, 2022, 3:50 p.m. This repo has been linked 1 different CVEs too.

None

JavaScript

Updated: 2 years, 7 months ago
0 stars 0 fork 0 watcher
Born at : March 28, 2022, 12:55 p.m. This repo has been linked 1 different CVEs too.

List of RegEx DoS (ReDoS) CVEs and resources

security awesome redos regex dos regex-dos pentesting awesome-list regex-security

Updated: 1 month, 2 weeks ago
24 stars 2 fork 2 watcher
Born at : June 10, 2021, 1:57 a.m. This repo has been linked 76 different CVEs too.

None

Updated: 1 month, 2 weeks ago
34 stars 3 fork 3 watcher
Born at : March 12, 2021, 12:22 p.m. This repo has been linked 1063 different CVEs too.

None

Updated: 2 months ago
19 stars 10 fork 10 watcher
Born at : Jan. 2, 2021, 10:19 p.m. This repo has been linked 1052 different CVEs too.

None

Updated: 6 days, 9 hours ago
83 stars 33 fork 33 watcher
Born at : Oct. 2, 2020, 2:49 p.m. This repo has been linked 1113 different CVEs too.

Regular expression matching for URL's. Maintained, safe, and browser-friendly version of url-regex. Resolves CVE-2020-7661 for Node.js servers.

regular expression regex regexp regular-expressions ddos url urls node javascript js browser

JavaScript

Updated: 1 week, 6 days ago
80 stars 14 fork 14 watcher
Born at : Aug. 15, 2020, 7:42 a.m. This repo has been linked 1 different CVEs too.

NodeJS Instagram private API SDK. Written in TypeScript.

instagram instagram-api instagram-client instagram-feed instagram-private-api instagram-scraper instagram-sdk

TypeScript

Updated: 2 days, 19 hours ago
6005 stars 1090 fork 1090 watcher
Born at : June 9, 2016, 12:14 p.m. This repo has been linked 1 different CVEs too.

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

The following list is the news that have been mention CVE-2020-7661 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-7661 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
  • Initial Analysis by [email protected]

    Jun. 10, 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/kevva/url-regex/issues/70 No Types Assigned https://github.com/kevva/url-regex/issues/70 Exploit, Third Party Advisory
    Changed Reference Type https://snyk.io/vuln/SNYK-JS-URLREGEX-569472 No Types Assigned https://snyk.io/vuln/SNYK-JS-URLREGEX-569472 Exploit, Third Party Advisory
    Added CWE NIST CWE-400
    Added CPE Configuration OR *cpe:2.3:a:url-regex_project:url-regex:*:*:*:*:*:*:*:*
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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-7661 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-2020-7661 weaknesses.

Exploit Prediction

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

0.10 }} 0.00%

score

0.39247

percentile

CVSS31 - Vulnerability Scoring System
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