CVE-2024-39853
📋 TL;DR
CVE-2024-39853 is a prototype pollution vulnerability in adolph_dudu ratio-swiper version 0.0.2 that allows attackers to inject arbitrary properties into object prototypes. This can lead to arbitrary code execution or denial of service. Anyone using this specific version of the ratio-swiper package is affected.
💻 Affected Systems
- adolph_dudu ratio-swiper
📦 What is this software?
Swiper by Swiperjs
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, or persistent backdoor installation.
Likely Case
Denial of service causing application crashes or instability, potentially leading to data corruption.
If Mitigated
Limited impact with proper input validation and sandboxing, possibly just application errors.
🎯 Exploit Status
Proof of concept available in GitHub gist. Exploitation requires attacker to control input to the parse function.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Remove ratio-swiper 0.0.2 from your project. 2. Check if any dependencies rely on this package. 3. Consider alternative packages or forks with security fixes.
🔧 Temporary Workarounds
Input validation and sanitization
allImplement strict input validation for all data passed to the parse function
Object.freeze on Object.prototype
allPrevent prototype pollution by freezing Object.prototype
Object.freeze(Object.prototype);
🧯 If You Can't Patch
- Isolate the vulnerable component in a sandboxed environment with minimal privileges
- Implement network segmentation to limit potential lateral movement if exploited
🔍 How to Verify
Check if Vulnerable:
Check package.json or node_modules for ratio-swiper version 0.0.2Check Version:
npm list ratio-swiperVerify Fix Applied:
Verify ratio-swiper 0.0.2 is no longer in package.json or node_modules📡 Detection & Monitoring
Log Indicators:
- Unexpected application crashes
- Unusual property modifications in objects
- Parse function receiving malformed input
Network Indicators:
- Unusual outbound connections from the application
- Requests with specially crafted payloads to endpoints using parse function
SIEM Query:
source="application_logs" AND ("ratio-swiper" OR "parse function") AND ("crash" OR "error" OR "unexpected")