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CVE-2024-5458— Filter bypass in filter_var (FILTER_VALIDATE_URL)

Quick assessment

Affected
PHP Group PHP
Exploitation
Public or AI PoC available; prioritize validation
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存在安全漏洞，该漏洞源于代码逻辑错误，过滤函数验证URLs时，对于某些类型的URL，函数会错误地将包含用户名和密码部分的无效用户信息视为有效用户信息。以下版本受到影响：8.1至8.1.29之前版本，8.3至8.3.8之前版本，8.2至8.2.20之前版本。

CVSS 5.3 · Medium EPSS 12.12% · P96

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2024-5458

Vulnerability Information
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Vulnerability Title
Filter bypass in filter_var (FILTER_VALIDATE_URL)
Source: CVE Program / CVE List V5
Vulnerability Description
In PHP versions 8.1.* before 8.1.29, 8.2.* before 8.2.20, 8.3.* before 8.3.8, due to a code logic error, filtering functions such as filter_var when validating URLs (FILTER_VALIDATE_URL) for certain types of URLs the function will result in invalid user information (username + password part of URLs) being treated as valid user information. This may lead to the downstream code accepting invalid URLs as valid and parsing them incorrectly.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
PHP 安全漏洞
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存在安全漏洞，该漏洞源于代码逻辑错误，过滤函数验证URLs时，对于某些类型的URL，函数会错误地将包含用户名和密码部分的无效用户信息视为有效用户信息。以下版本受到影响：8.1至8.1.29之前版本，8.3至8.3.8之前版本，8.2至8.2.20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
PHP Group PHP 8.1.* ~ 8.1.29 -

II. Public POCs for CVE-2024-5458

# POC Description Source Link Shenlong Link
1 Filter bypass in filter_var https://github.com/justmexD8/CVE-2024-5458-POC POC Details
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III. Intelligence Information for CVE-2024-5458

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Vendor Advisories for CVE-2024-5458 (2)

Mailing List Discussions for CVE-2024-5458 (4)

Same Patch Batch · PHP Group · 2024-06-09 · 4 CVEs total

CVE-2024-4577 9.8 CRITICAL Argument Injection in PHP-CGI
CVE-2024-5585 7.7 HIGH Command injection via array-ish $command parameter of proc_open() (bypass CVE-2024-1874 fi
CVE-2024-2408 PHP is vulnerable to the Marvin Attack

IV. Related Vulnerabilities

Same product: PHP
Same vendor: PHP Group

V. Comments for CVE-2024-5458

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