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CVE-2021-37699— Open Redirect in Next.js versions below 11.1.0

Quick assessment

Affected
vercel next.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.

ZEIT Next.js是ZEIT公司的一款基于Vue.js、Node.js、Webpack和Babel.js的开源Web应用框架。 ZEIT Next.js 中存在输入验证错误漏洞，该漏洞源于产品静态生成的 pages/_error.js 页面允许重定向到别的站点。以下产品及版本受到影响：Next.js 11.1.0 之前版本。

CVSS 6.9 · Medium EPSS 1.03% · P63

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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I. Basic Information for CVE-2021-37699

Vulnerability Information
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Vulnerability Title
Open Redirect in Next.js versions below 11.1.0
Source: CVE Program / CVE List V5
Vulnerability Description
Next.js is an open source website development framework to be used with the React library. In affected versions specially encoded paths could be used when pages/_error.js was statically generated allowing an open redirect to occur to an external site. In general, this redirect does not directly harm users although can allow for phishing attacks by redirecting to an attacker's domain from a trusted domain. We recommend everyone to upgrade regardless of whether you can reproduce the issue or not. The issue has been patched in release 11.1.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: CVE Program / CVE List V5
Vulnerability Title
ZEIT Next.js 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ZEIT Next.js是ZEIT公司的一款基于Vue.js、Node.js、Webpack和Babel.js的开源Web应用框架。 ZEIT Next.js 中存在输入验证错误漏洞，该漏洞源于产品静态生成的 pages/_error.js 页面允许重定向到别的站点。以下产品及版本受到影响：Next.js 11.1.0 之前版本。
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
vercel next.js < 11.1.0 -

II. Public POCs for CVE-2021-37699

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III. Intelligence Information for CVE-2021-37699

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Vendor Advisories for CVE-2021-37699 (1)

Other References for CVE-2021-37699 (1)

IV. Related Vulnerabilities

Same product: next.js
Same vendor: vercel
Same weakness: CWE-601

V. Comments for CVE-2021-37699

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