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CVE-2021-4229— ua-parser-js Crypto Mining backdoor

Quick assessment

Affected
unspecified ua-parser-js
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.

ua-parser-js是基于JavaScript的User-Agent字符串解析器。可以在浏览器（客户端）或node.js（服务器端）环境中使用。也可以作为jQuery / Zepto插件，Bower / Meteor软件包和RequireJS / AMD模块使用。 ua-parser-js（npm） 0.7.29、0.8.0 和 1.0.0 版本存在安全漏洞。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。

CVSS 5.0 · Medium EPSS 1.48% · P73

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-4229

Vulnerability Information
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Vulnerability Title
ua-parser-js Crypto Mining backdoor
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in ua-parser-js 0.7.29/0.8.0/1.0.0. It has been rated as critical. This issue affects the crypto mining component which introduces a backdoor. Upgrading to version 0.7.30, 0.8.1 and 1.0.1 is able to address this issue. It is recommended to upgrade the affected component.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
隐藏功能
Source: CVE Program / CVE List V5
Vulnerability Title
ua-parser-js 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ua-parser-js是基于JavaScript的User-Agent字符串解析器。可以在浏览器（客户端）或node.js（服务器端）环境中使用。也可以作为jQuery / Zepto插件，Bower / Meteor软件包和RequireJS / AMD模块使用。 ua-parser-js（npm） 0.7.29、0.8.0 和 1.0.0 版本存在安全漏洞。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
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
unspecified ua-parser-js 0.7.29 -

II. Public POCs for CVE-2021-4229

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III. Intelligence Information for CVE-2021-4229

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Vendor Advisories for CVE-2021-4229 (1)

Other References for CVE-2021-4229 (2)

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IV. Related Vulnerabilities

Same product: ua-parser-js
Same vendor: unspecified
Same weakness: CWE-912

V. Comments for CVE-2021-4229

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