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CVE-2024-4879 — ServiceNow has addressed an input validation vulnerability that was identified in…

Key facts

CVE-2024-4879 is a Critical (9.8) vulnerability: ServiceNow has addressed an input validation vulnerability that was identified in…. This entry ships a detection-only PoC and a Docker test lab. It is on the CISA Known Exploited Vulnerabilities (KEV) catalog (added 2024-07-29), confirming active exploitation in the wild.

Actively exploited — on the CISA KEV catalog

CVE-2024-4879 is listed on the CISA Known Exploited Vulnerabilities (KEV) catalog (added 2024-07-29), confirming exploitation in the wild. Federal remediation deadline: 2024-08-19. Prioritise patching and deploy the detection and prevention rules below.
CVE CVE-2024-4879
Severity Critical (9.8)
CISA KEV Actively exploited (added 2024-07-29)
Detection / prevention —
PoC poc.py
Source 2024/CVE-2024-4879/

Details

English | 한국어

Description

ServiceNow has addressed an input validation vulnerability that was identified in Vancouver and Washington DC Now Platform releases. This vulnerability could enable an unauthenticated user to remotely execute code within the context of the Now Platform. ServiceNow applied an update to hosted instances, and ServiceNow released the update to our partners and self-hosted customers. Listed below are the patches and hot fixes that address the vulnerability. If you have not done so already, we recommend applying security patches relevant to your instance as soon as possible.

Vulnerability Details

Property Value
CVE ID CVE-2024-4879
CVSS Score 9.8

Proof of Concept

Download

# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2024/CVE-2024-4879/poc.py

Usage

# Run PoC against target
python3 poc.py --target <TARGET_URL>

# With authentication
python3 poc.py --target <TARGET_URL> --username <USER> --password <PASS>

⚠️ Warning: This PoC is for authorized security testing only. It uses detection-only techniques and does not exploit or damage target systems.

Test Lab

This repository includes a Docker-based test environment with both vulnerable and patched applications.

Quick Start

# Clone and navigate to CVE directory
cd CVE-2024-4879

# Start both applications
docker-compose up -d

# Run tests
./run-tests.sh    # Linux/Mac
./run-tests.ps1   # Windows PowerShell

Application Endpoints

Application URL Status
Vulnerable App http://localhost:8080 Shows vulnerability
Patched App http://localhost:8081 Demonstrates fix

Directory Structure

├── README.md           # English documentation
├── README_KO.md        # Korean documentation
├── poc.py              # PoC detection script
├── docker-compose.yml  # Container orchestration
├── run-tests.sh        # Linux/Mac test runner
├── run-tests.ps1       # Windows test runner
├── vulnerable-app/     # Vulnerable version
│   ├── app.py
│   ├── Dockerfile
│   └── requirements.txt
└── patched-app/        # Fixed version
    ├── app.py
    ├── Dockerfile
    └── requirements.txt

References

  • https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB1644293
  • https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB1645154
  • https://www.darkreading.com/cloud-security/patchnow-servicenow-critical-rce-bugs-active-exploit
  • https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB1644293
  • https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB1645154
  • https://www.darkreading.com/cloud-security/patchnow-servicenow-critical-rce-bugs-active-exploit
  • https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-4879

Generated by PoC Generator on 2026-06-24T15:41:36.031587251

Frequently asked questions

What is CVE-2024-4879?

CVE-2024-4879 is a Critical (9.8) vulnerability: ServiceNow has addressed an input validation vulnerability that was identified in…. This entry ships a detection-only PoC and a Docker test lab. It is on the CISA Known Exploited Vulnerabilities (KEV) catalog (added 2024-07-29), confirming active exploitation in the wild.

How do I detect CVE-2024-4879?

Run the detection-only PoC included with this entry against your Docker test lab to confirm whether a target is affected; pair it with your own IDS logging.

How do I block or mitigate CVE-2024-4879?

Upgrade to a fixed version per the vendor advisory; the NVD record lists the affected versions. Use the included PoC to verify your remediation.

Is CVE-2024-4879 actively exploited?

Yes. CVE-2024-4879 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, added 2024-07-29, which means it has been exploited in the wild. CISA set a federal remediation deadline of 2024-08-19. Prioritise patching and deploy the detection and prevention rules above.

For authorized security testing and research only. See the full source and NVD record.