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CVE-2021-21263— Query Binding Exploitation in Laravel

Quick assessment

Affected
laravel framework
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.

Laravel Framework是Taylor Otwell个人开发者的一款基于PHP的Web应用程序开发框架。 Laravel Framework 存在SQL注入漏洞，该漏洞源于查询绑定利用，导致查询生成器不返回任何结果。以下产品及版本受到影响：Laravel before 6.20.11, 7.30.2 and 8.22.1。

CVSS 7.2 · High EPSS 1.60% · P75
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I. Basic Information for CVE-2021-21263

Vulnerability Information
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Vulnerability Title
Query Binding Exploitation in Laravel
Source: CVE Program / CVE List V5
Vulnerability Description
Laravel is a web application framework. Versions of Laravel before 6.20.11, 7.30.2 and 8.22.1 contain a query binding exploitation. This same exploit applies to the illuminate/database package which is used by Laravel. If a request is crafted where a field that is normally a non-array value is an array, and that input is not validated or cast to its expected type before being passed to the query builder, an unexpected number of query bindings can be added to the query. In some situations, this will simply lead to no results being returned by the query builder; however, it is possible certain queries could be affected in a way that causes the query to return unexpected results.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Laravel Framework SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Laravel Framework是Taylor Otwell个人开发者的一款基于PHP的Web应用程序开发框架。 Laravel Framework 存在SQL注入漏洞，该漏洞源于查询绑定利用，导致查询生成器不返回任何结果。以下产品及版本受到影响：Laravel before 6.20.11, 7.30.2 and 8.22.1。
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
laravel framework >= 6.0.0, < 6.20.11 -

II. Public POCs for CVE-2021-21263

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III. Intelligence Information for CVE-2021-21263

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Patches & Fixes for CVE-2021-21263 (1)

Vendor Advisories for CVE-2021-21263 (1)

Security Blog Posts for CVE-2021-21263 (1)

Other References for CVE-2021-21263 (2)

IV. Related Vulnerabilities

Same product: framework
Same vendor: laravel
Same weakness: CWE-74

V. Comments for CVE-2021-21263

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