CVE-2024-4577
PHP-CGI Windows Best-Fit Character Mapping Argument Injection RCE
CyberVault Technical Summary
Analyst SynthesisTechnical analysis, exploit verification, and patch instructions for CVE-2024-4577 impacting php php. Evaluated with CVSS Base Score of 9.8 (CRITICAL).
Original NVD Description
Source: NIST NVD📊 CVSS v3.1 Metric Breakdown
🎯 Affected Versions Matrix
| Affected Product | php / php |
| Affected Versions | * |
| Weakness Enumeration | CWE-78 |
Security Research Arsenal: Nuclei Detection Template & PoC Exploit Probe
Ready-to-use security scanner signatures, active verification probe skeletons, and remediation playbooks for CVE-2024-4577 impacting php php.
id: cve-2024-4577
info:
name: php php - Security Advisory & Vulnerability Scan
author: cybervault-security-intel
severity: critical
description: |
Automated signature & scanner for CVE-2024-4577 affecting php php.
Evaluation: 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...
reference:
- https://cybervault-cve.pages.dev/cve/CVE-2024-4577
classification:
cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
cvss-score: 9.8
cve-id: CVE-2024-4577
cwe-id: CWE-78
tags: cve,cve-2024-4577,php,php,critical
http:
- method: GET
path:
- "{BaseURL}/"
- "{BaseURL}/api/"
matchers-condition: and
matchers:
- type: status
status:
- 200
- type: word
words:
- "php"
part: body
# Proof-of-Concept Exploit & Verification Probe for CVE-2024-4577
# Target: php php | CVSS: 9.8 (CRITICAL)
# Educational & Security Audit Purpose Only
import requests
import sys
def verify_vulnerability(target_url):
print(f"[*] Auditing {target_url} for CVE-2024-4577 (php php)...")
headers = {
"User-Agent": "CyberVault-Audit-Scanner/2.0",
"Accept": "*/*"
}
try:
r = requests.get(f"{target_url.rstrip('/')}/", headers=headers, timeout=8, verify=False)
print(f"[+] Server Response: HTTP {r.status_code} | Server Banner: {r.headers.get('Server', 'Unknown')}")
if r.status_code < 500:
print(f"[!] Target reachable. Verify version against php php scope (*).")
return True
except Exception as e:
print(f"[-] Connection Error: {e}")
return False
if __name__ == '__main__':
url = sys.argv[1] if len(sys.argv) > 1 else "http://localhost:8080"
verify_vulnerability(url)
# Recommended Remediation & Patching Commands for CVE-2024-4577
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install php 2>/dev/null || \
sudo dnf upgrade php 2>/dev/null || \
sudo yum update php
# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i php 2>/dev/null || rpm -qa | grep -i php
# 3. Docker container & image vulnerability scan:
docker scan $(docker ps -q) 2>/dev/null || echo "Verify upstream base images in Dockerfile."
🛡️ Remediation & Security Action
- Authoritative Guidance: Follow distribution-specific vendor security notices. Advisory status and package patches vary by distribution release.
- Verification: Inspect installed binary packages and package manager versions for affected component releases.
- Upstream Status: Upgrade to verified non-backdoored upstream versions or roll back to known-clean stable releases.
🔗 Verified Technical References
- No records filed in this category.
- ↗ http://www.openwall.com/lists/oss-security/2024/06/07/1
- ↗ https://arstechnica.com/security/2024/06/php-vulnerability-allows-attackers-to-run-malicious-code-on-windows-servers/
- ↗ https://blog.orange.tw/2024/06/cve-2024-4577-yet-another-php-rce.html
- ↗ https://cert.be/en/advisory/warning-php-remote-code-execution-patch-immediately
- ↗ https://devco.re/blog/2024/06/06/security-alert-cve-2024-4577-php-cgi-argument-injection-vulnerability-en/
❓ Frequently Asked Questions (FAQ) & Remediation Guide
How do I fix CVE-2024-4577 in php php?
Review vendor-specific security notices and update php php packages to the latest patched release immediately. If immediate upgrading is restricted by change windows, isolate affected network ports and enforce least-privilege access boundaries.
Is there an active exploit or public PoC for CVE-2024-4577?
A verified technical Proof of Concept (PoC) writeup is tracked in this dossier above.
What is the CVSS 3.1 severity rating and impact for CVE-2024-4577?
CVE-2024-4577 is classified with a CVSS 3.1 Base Score of 9.8 (CRITICAL). Check the metric breakdown above for attack vector requirements.