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CVE-2024-4577 CISA KEV high

[KEV] OS Command Injection in PHP Group PHP (CVE-2024-4577)

Summary

OS command injection in PHP Group PHP (CVE-2024-4577). Risk of unauthorized operations or information disclosure. Listed in CISA KEV — actively exploited.

Original description

The description as published by the source.

In PHP versions 8.1.* before 8.1.29, 8.2.* before 8.2.20, 8.3.* before 8.3.8, when using Apache and PHP-CGI on Windows, if the system is set up to use certain code pages, Windows may use "Best-Fit" behavior to replace characters in command line given to Win32 API functions. PHP CGI module may misinterpret those characters as PHP options, which may allow a malicious user to pass options to PHP binary being run, and thus reveal the source code of scripts, run arbitrary PHP code on the server, etc.

Source: CISA Known Exploited Vulnerabilities NVD GitHub Advisory CISA KEV

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2024-4577 has been found in PHP Group PHP.
Risk of unauthorized operations or information disclosure.
Note: CISA has officially confirmed this is actively exploited in the wild. Treat it with elevated urgency.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "PHP Group PHP CVE-2024-4577" on the vendor's site.

CVE-2024-4577 (PHP Group PHP) — CWE-78
Listed in CISA KEV — actively exploited, treat as top priority.
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

OS command injection (CWE-78) exists in PHP Group PHP.

📍 Affected scope

Check the vendor advisory for the affected versions of PHP Group PHP.

🔥 Severity

Severity: High. Risk of unauthorized operations or information disclosure. Listed in CISA KEV — actively exploited in the wild, treat as top priority.

🔧 How to fix

Update to the patched release per vendor advisory.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'PHP' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify 
    grep -r 'PHP' . | grep -v node_modules

    リポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で PHP を grep し、稼働しているサービス・バージョンを把握する。

  2. 2
    Consider incident declaration escalate 
    Notify SOC / on-call

    CISA KEV登録済 = 実環境で悪用が観測されている。侵入の兆候があればインシデント対応宣言、無くてもパッチ適用までWAF強化を最優先で。

  3. 3
    Post-deployment verification verify 
    Confirm patched version is live in production

    パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

Bitnami libphp
[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.1.29"},{"introduced":"8.2.0"},{"fixed":"8.2.20"},{"introduced":"8.3.0"},{"fixed":"8.3.8"}]}]
Bitnami php-min
[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.1.29"},{"introduced":"8.2.0"},{"fixed":"8.2.20"},{"introduced":"8.3.0"},{"fixed":"8.3.8"}]}]
Bitnami php
[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"8.1.29"},{"introduced":"8.2.0"},{"fixed":"8.2.20"},{"introduced":"8.3.0"},{"fixed":"8.3.8"}]}]

References

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