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CVE-2020-28501— Regular Expression Denial of Service (ReDoS)

Quick assessment

Affected
n/a es6-crawler-detect
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 es6-crawler-detect是美国 （Npm）公司的一个应用软件。通过扫描用户代理字符串或从全局，可以帮助检测机器人,爬虫和蜘蛛。 es6-crawler-detect before 3.1.3 存在安全漏洞，该漏洞源于对提供给regex操作符的用户代理字符串长度没有限制。

CVSS 5.3 · Medium EPSS 1.50% · P72

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2020-28501

Vulnerability Information
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Vulnerability Title
Regular Expression Denial of Service (ReDoS)
Source: CVE Program / CVE List V5
Vulnerability Description
This affects the package es6-crawler-detect before 3.1.3. No limitation of user agent string length supplied to regex operators.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Npm es6-crawler-detect 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Npm es6-crawler-detect是美国 （Npm）公司的一个应用软件。通过扫描用户代理字符串或从全局，可以帮助检测机器人,爬虫和蜘蛛。 es6-crawler-detect before 3.1.3 存在安全漏洞，该漏洞源于对提供给regex操作符的用户代理字符串长度没有限制。
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
- es6-crawler-detect unspecified ~ 3.1.3 -

II. Public POCs for CVE-2020-28501

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III. Intelligence Information for CVE-2020-28501

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Patches & Fixes for CVE-2020-28501 (1)

Vendor Advisories for CVE-2020-28501 (1)

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Showing top 20 of 29 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same vendor: n/a

V. Comments for CVE-2020-28501

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