CVE-2020-26302
Apache is.js Regular Expression Denial of Service (ReDoS) Vulnerability
Description
is.js is a general-purpose check library. Versions 0.9.0 and prior contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). is.js uses a regex copy-pasted from a gist to validate URLs. Trying to validate a malicious string can cause the regex to loop “forever." This vulnerability was found using a CodeQL query which identifies inefficient regular expressions. is.js has no patch for this issue.
INFO
Published Date :
Dec. 22, 2022, 9:15 p.m.
Last Modified :
Nov. 21, 2024, 5:19 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-2020-26302.
| URL | Resource |
|---|---|
| https://github.com/arasatasaygin/is.js/issues/320 | Issue Tracking Third Party Advisory |
| https://securitylab.github.com/advisories/GHSL-2020-295-redos-is.js | Exploit Third Party Advisory |
| https://github.com/arasatasaygin/is.js/issues/320 | Issue Tracking Third Party Advisory |
| https://securitylab.github.com/advisories/GHSL-2020-295-redos-is.js | 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-26302 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-26302 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/arasatasaygin/is.js/issues/320 Added Reference https://securitylab.github.com/advisories/GHSL-2020-295-redos-is.js -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Changed Description is.js is a general-purpose check library. Versions 0.9.0 and prior contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). is.js uses a regex copy-pasted from a gist to validate URLs. Trying to validate a malicious string can cause the regex to loop “forever." This vulnerability was found using a CodeQL query which identifies inefficient regular expressions. is.js has no patch for this issue. is.js is a general-purpose check library. Versions 0.9.0 and prior contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). is.js uses a regex copy-pasted from a gist to validate URLs. Trying to validate a malicious string can cause the regex to loop “forever." This vulnerability was found using a CodeQL query which identifies inefficient regular expressions. is.js has no patch for this issue. -
Initial Analysis by [email protected]
Dec. 30, 2022
Action Type Old Value New Value 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/arasatasaygin/is.js/issues/320 No Types Assigned https://github.com/arasatasaygin/is.js/issues/320 Issue Tracking, Third Party Advisory Changed Reference Type https://securitylab.github.com/advisories/GHSL-2020-295-redos-is.js No Types Assigned https://securitylab.github.com/advisories/GHSL-2020-295-redos-is.js Exploit, Third Party Advisory Added CWE NIST CWE-1333 Added CPE Configuration OR *cpe:2.3:a:is.js_project:is.js:*:*:*:*:*:*:*:* versions up to (including) 0.9.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-26302 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-2020-26302
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.17 }} 0.02%
score
0.39348
percentile