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CVE-2021-43306— Exponential ReDoS in jquery-validation

Quick assessment

Affected
jquery-validation jquery-validation
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

npm jquery-validation是美国npm公司的为您现有的表单提供插入式验证，同时使各种定制以适合您的应用程序非常容易。 npm jquery-validation 1.19.3 版本存在安全漏洞，攻击者利用该漏洞可向 url2 方法提供任意输入时触发指数 ReDoS（正则表达式拒绝服务）。

CVSS 5.9 · Medium EPSS 1.50% · P72

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2021-43306

Vulnerability Information
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Vulnerability Title
Exponential ReDoS in jquery-validation
Source: CVE Program / CVE List V5
Vulnerability Description
An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the jquery-validation npm package, when an attacker is able to supply arbitrary input to the url2 method
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1333
Source: CVE Program / CVE List V5
Vulnerability Title
npm jquery-validation 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
npm jquery-validation是美国npm公司的为您现有的表单提供插入式验证，同时使各种定制以适合您的应用程序非常容易。 npm jquery-validation 1.19.3 版本存在安全漏洞，攻击者利用该漏洞可向 url2 方法提供任意输入时触发指数 ReDoS（正则表达式拒绝服务）。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
jquery-validation jquery-validation unspecified ~ 1.19.4 -

II. Public POCs for CVE-2021-43306

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III. Intelligence Information for CVE-2021-43306

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Other References for CVE-2021-43306 (1)

IV. Related Vulnerabilities

Same product: jquery-validation
Same vendor: jquery-validation
Same weakness: CWE-1333

V. Comments for CVE-2021-43306

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