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CVE-2024-50342— Internal address and port enumeration allowed by NoPrivateNetworkHttpClient in symfony/http-client

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存在信息泄露漏洞，该漏洞源于主机解析期间会泄露一些内部信息，可能导致IP/端口枚举。

CVSS 3.1 · Low EPSS 0.47% · P39
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I. Basic Information for CVE-2024-50342

Vulnerability Information
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Vulnerability Title
Internal address and port enumeration allowed by NoPrivateNetworkHttpClient in symfony/http-client
Source: CVE Program / CVE List V5
Vulnerability Description
symfony/http-client is a module for the Symphony PHP framework which provides powerful methods to fetch HTTP resources synchronously or asynchronously. When using the `NoPrivateNetworkHttpClient`, some internal information is still leaking during host resolution, which leads to possible IP/port enumeration. As of versions 5.4.46, 6.4.14, and 7.1.7 the `NoPrivateNetworkHttpClient` now filters blocked IPs earlier to prevent such leaks. All 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
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Symfony 信息泄露漏洞
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存在信息泄露漏洞，该漏洞源于主机解析期间会泄露一些内部信息，可能导致IP/端口枚举。
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 < 5.4.46 -

II. Public POCs for CVE-2024-50342

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III. Intelligence Information for CVE-2024-50342

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Patches & Fixes for CVE-2024-50342 (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-2024-50341 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-2024-50343 3.1 LOW Incorrect response from Validator when input ends with `\n` in symfony/validator
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-200

V. Comments for CVE-2024-50342

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