CVE-2024-50342— Internal address and port enumeration allowed by NoPrivateNetworkHttpClient in symfony/http-client
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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: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
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
II. Public POCs for CVE-2024-50342
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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
- CVE-2026-24739
Symfony has incorrect argument escaping under MSYS2/Git Bash - CVE-2025-64500
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Symphony has an Authentication Bypass via RememberMe - CVE-2024-50340
Ability to change environment from query in symfony/runtime - CVE-2024-50341
Security::login does not take into account custom user_check
Same vendor: symfony
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Symfony has incorrect argument escaping under MSYS2/Git Bash - CVE-2025-64500
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symfony/ux-live-component and symfony/ux-twig-component vuln - CVE-2024-51996
Symphony has an Authentication Bypass via RememberMe - CVE-2024-50340
Ability to change environment from query in symfony/runtime
Same weakness: CWE-200
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V. Comments for CVE-2024-50342
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