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CVE-2021-27292

Quick assessment

Affected
n/a n/a
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 >= 0.7.14 存在安全漏洞，该漏洞源于正则表达式的问题，导致拒绝服务。

AI Predicted 7.5 Difficulty: Easy EPSS 3.37% · P89

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-27292

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
ua-parser-js >= 0.7.14, fixed in 0.7.24, uses a regular expression which is vulnerable to denial of service. If an attacker sends a malicious User-Agent header, ua-parser-js will get stuck processing it for an extended period of time.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
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 >= 0.7.14 存在安全漏洞，该漏洞源于正则表达式的问题，导致拒绝服务。
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
- n/a n/a -

II. Public POCs for CVE-2021-27292

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-27292

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Patches & Fixes for CVE-2021-27292 (2)

Other References for CVE-2021-27292 (1)

Same Patch Batch · n/a · 2021-03-17 · 13 CVEs total

CVE-2021-28660 Linux kernel 缓冲区错误漏洞
CVE-2021-28650 Gnome gnome-autoar 后置链接漏洞
CVE-2017-20002 shadow 安全漏洞
CVE-2021-27291 Matthäus G. Chajdas pygments 安全漏洞
CVE-2020-28873 Fluxbb 安全漏洞
CVE-2020-35456 Google Play Diibear 安全漏洞
CVE-2020-35455 Google Play Diibear 安全漏洞
CVE-2020-35454 Google Play Diibear 安全漏洞
CVE-2020-17457 FUJITSU LIMITED Fujitsu ServerView Suite 跨站脚本漏洞
CVE-2019-18233 Advantech Spectre RT ERT351 firmware 跨站脚本漏洞
CVE-2019-18231 Advantech Spectre RT ERT351 firmware 安全漏洞
CVE-2019-18235 None Advantech Spectre RT ERT351 firmware 安全漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2021-27292

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