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MEDIUM severity

ZendFramework Potential Proxy Injection VulnerabilitiesGHSA-mg7h-9qfx-4r83

MEDIUMFix: zendframework/zendframework@1040aca

GHSA-mg7h-9qfx-4r83 is a medium-severity (CVSS 5.9) vulnerability in zendframework/zendframework. A fix is available for zendframework/zendframework — see the affected versions and patch details below.

Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Dec 4, 2024 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
🐘zendframework/zendframework

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

Zend\Session\Validator\RemoteAddr and Zend\View\Helper\ServerUrl were found to be improperly parsing HTTP headers for proxy information, which could potentially allow an attacker to spoof a proxied IP or host name.

In Zend\Session\Validator\RemoteAddr, if the client is behind a proxy server, the detection of the proxy URL was incorrect, and could lead to invalid results on subsequent lookups.

In Zend\View\Helper\ServerUrl, if the server lives behind a proxy, the helper would always generate a URL based on the proxy host, regardless of whether or not this was desired; additionally, it did not take into account the proxy port or protocol, if provided.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistzendframework/zendframework≥ 2.0.0&&< 2.0.52.0.5composer require zendframework/zendframework:^2.0.5

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for zendframework/zendframework, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update zendframework/zendframework to 2.0.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-mg7h-9qfx-4r83 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

`Zend\Session\Validator\RemoteAddr` and `Zend\View\Helper\ServerUrl` were found to be improperly parsing HTTP headers for proxy information, which could potentially allow an attacker to spoof a proxied IP or host name. In `Zend\Session\Validator\RemoteAddr`, if the client is behind a proxy server, the detection of the proxy URL was incorrect, and could lead to invalid results on subsequent lookups. In `Zend\View\Helper\ServerUrl`, if the server lives behind a proxy, the helper would always generate a URL based on the proxy host, regardless of whether or not this was desired; additionally, it
O3 Security · Impact-Aware SCA

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ZendFramework Potential Proxy Injection Vulnerabilities