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CVE-2024-50343— Incorrect response from Validator when input ends with `\n` in symfony/validator

Quick assessment

Affected
symfony symfony
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.

Symfony是Symfony公司的一个用于 Web 和控制台应用程序的 PHP 框架以及一组可重用的 PHP 组件。 Symfony存在输入验证错误漏洞，该漏洞源于输入以 结尾时，Validator的响应不正确。

CVSS 3.1 · Low EPSS 0.46% · P37

Possible ATT&CK Techniques 1 AI

T1562
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I. Basic Information for CVE-2024-50343

Vulnerability Information
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Vulnerability Title
Incorrect response from Validator when input ends with `\n` in symfony/validator
Source: CVE Program / CVE List V5
Vulnerability Description
symfony/validator is a module for the Symphony PHP framework which provides tools to validate values. It is possible to trick a `Validator` configured with a regular expression using the `$` metacharacters, with an input ending with `\n`. Symfony as of versions 5.4.43, 6.4.11, and 7.1.4 now uses the `D` regex modifier to match the entire input. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Symfony 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Symfony是Symfony公司的一个用于 Web 和控制台应用程序的 PHP 框架以及一组可重用的 PHP 组件。 Symfony存在输入验证错误漏洞，该漏洞源于输入以 结尾时，Validator的响应不正确。
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
symfony symfony < 5.4.43 -

II. Public POCs for CVE-2024-50343

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III. Intelligence Information for CVE-2024-50343

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Patches & Fixes for CVE-2024-50343 (1)

Same Patch Batch · symfony · 2024-11-06 · 6 CVEs total

CVE-2024-50340 7.3 HIGH Ability to change environment from query in symfony/runtime
CVE-2024-50342 3.1 LOW Internal address and port enumeration allowed by NoPrivateNetworkHttpClient in symfony/htt
CVE-2024-50341 3.1 LOW Security::login does not take into account custom user_checker in symfony/security-bundle
CVE-2024-50345 3.1 LOW Open redirect via browser-sanitized URLs in symfony/http-foundation
CVE-2024-51736 Command execution hijack on Windows with Process class in symfony/process

IV. Related Vulnerabilities

Same product: symfony
Same vendor: symfony
Same weakness: CWE-20

V. Comments for CVE-2024-50343

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