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CVE-2023-0662— DoS vulnerability when parsing multipart request body

Quick assessment

Affected
PHP Group PHP
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.

PHP是一种在服务器端执行的脚本语言。 PHP 8.0.28之前的8.0.X版本、8.1.16之前的8.1.X版本和8.2.3之前的8.2.X版本存在资源管理错误漏洞，该漏洞源于HTTP表单上传部分过多会导致资源消耗高，从而导致拒绝服务。

CVSS 7.5 · High EPSS 1.41% · P72

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2023-0662

Vulnerability Information
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Vulnerability Title
DoS vulnerability when parsing multipart request body
Source: CVE Program / CVE List V5
Vulnerability Description
In PHP 8.0.X before 8.0.28, 8.1.X before 8.1.16 and 8.2.X before 8.2.3, excessive number of parts in HTTP form upload can cause high resource consumption and excessive number of log entries. This can cause denial of service on the affected server by exhausting CPU resources or disk space.
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:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
PHP 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PHP是一种在服务器端执行的脚本语言。 PHP 8.0.28之前的8.0.X版本、8.1.16之前的8.1.X版本和8.2.3之前的8.2.X版本存在资源管理错误漏洞，该漏洞源于HTTP表单上传部分过多会导致资源消耗高，从而导致拒绝服务。
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
PHP Group PHP 8.0.x ~ 8.0.28 -

II. Public POCs for CVE-2023-0662

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III. Intelligence Information for CVE-2023-0662

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Vendor Advisories for CVE-2023-0662 (2)

Same Patch Batch · PHP Group · 2023-02-16 · 3 CVEs total

CVE-2023-0567 7.7 HIGH password_verify() always returns true for some invalid hashes
CVE-2023-0568 7.5 HIGH Array overrun in common path resolve code

IV. Related Vulnerabilities

Same product: PHP
Same vendor: PHP Group
Same weakness: CWE-400

V. Comments for CVE-2023-0662

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