CVE-2021-23362

Regular Expression Denial of Service (ReDoS)

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The package hosted-git-info before 3.0.8 are vulnerable to Regular Expression Denial of Service (ReDoS) via regular expression shortcutMatch in the fromUrl function in index.js. The affected regular expression exhibits polynomial worst-case time complexity.

El paquete hosted-git-info anterior a la versión 3.0.8 es vulnerable a la Denegación de Servicio por Expresión Regular (ReDoS) a través de la expresión regular shortcutMatch en la función fromUrl en index.js. La expresión regular afectada muestra una complejidad de tiempo polinómica en el peor de los casos

A regular expression denial of service vulnerability was found in hosted-git-info. If an application allows user input into the affected regular expression (regexp) function, `shortcutMatch` or `fromUrl`, then an attacker could craft a regexp which takes an ever increasing amount of time to process, potentially resulting in a denial of service.

*Credits: Yeting Li

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-08 CVE Reserved
2021-03-23 CVE Published
2023-12-07 EPSS Updated
2024-09-17 CVE Updated
2024-09-17 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-400: Uncontrolled Resource Consumption
CWE-1333: Inefficient Regular Expression Complexity

CAPEC

References (9)

URL	Tag	Source

URL	Date	SRC
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1088356	2024-09-17
https://snyk.io/vuln/SNYK-JS-HOSTEDGITINFO-1088355	2024-09-17

URL	Date	SRC
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf	2023-08-08
https://github.com/npm/hosted-git-info/commit/29adfe5ef789784c861b2cdeb15051ec2ba651a7	2023-08-08
https://github.com/npm/hosted-git-info/commit/8d4b3697d79bcd89cdb36d1db165e3696c783a01	2023-08-08
https://github.com/npm/hosted-git-info/commit/bede0dc38e1785e732bf0a48ba6f81a4a908eba3	2023-08-08
https://github.com/npm/hosted-git-info/commits/v2	2023-08-08

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2021-23362	2021-09-22
https://bugzilla.redhat.com/show_bug.cgi?id=1943208	2021-09-22

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Npmjs Search vendor "Npmjs"		Hosted-git-info Search vendor "Npmjs" for product "Hosted-git-info"				>= 2.0.0 < 2.8.9 Search vendor "Npmjs" for product "Hosted-git-info" and version " >= 2.0.0 < 2.8.9"		-		Affected
Npmjs Search vendor "Npmjs"		Hosted-git-info Search vendor "Npmjs" for product "Hosted-git-info"				>= 3.0.0 < 3.0.8 Search vendor "Npmjs" for product "Hosted-git-info" and version " >= 3.0.0 < 3.0.8"		-		Affected
Siemens Search vendor "Siemens"		Sinec Infrastructure Network Services Search vendor "Siemens" for product "Sinec Infrastructure Network Services"				< 1.0.1.1 Search vendor "Siemens" for product "Sinec Infrastructure Network Services" and version " < 1.0.1.1"		-		Affected