CVE-2020-7725
📋 TL;DR
CVE-2020-7725 is a prototype pollution vulnerability in the worksmith package that allows attackers to modify object prototypes, potentially leading to remote code execution or denial of service. All versions of worksmith are affected, impacting any application using this package for workflow management.
💻 Affected Systems
- worksmith
📦 What is this software?
Worksmith by Guidesmiths
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, or ransomware deployment.
Likely Case
Denial of service, application crashes, or unauthorized data manipulation.
If Mitigated
Limited impact if input validation and sanitization are implemented, though prototype pollution remains dangerous.
🎯 Exploit Status
Exploitation requires attacker-controlled input to the setValue function.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: N/A
Vendor Advisory: https://snyk.io/vuln/SNYK-JS-WORKSMITH-598798
Restart Required: Yes
Instructions:
1. Remove worksmith package. 2. Replace with alternative workflow management solution. 3. Restart affected applications.
🔧 Temporary Workarounds
Input validation and sanitization
allImplement strict input validation for all user inputs passed to setValue function.
Object.freeze on Object.prototype
allPrevent prototype pollution by freezing Object.prototype (may break functionality).
Object.freeze(Object.prototype);
🧯 If You Can't Patch
- Isolate affected systems in network segments with strict access controls.
- Implement web application firewall rules to block suspicious payloads targeting setValue function.
🔍 How to Verify
Check if Vulnerable:
Check package.json for worksmith dependency: grep -r 'worksmith' package.jsonCheck Version:
npm list worksmithVerify Fix Applied:
Confirm worksmith is removed from package.json and node_modules directory.📡 Detection & Monitoring
Log Indicators:
- Unusual application crashes
- Unexpected prototype modifications in logs
- Suspicious input patterns to setValue function
Network Indicators:
- HTTP requests with malicious payloads targeting setValue endpoints
SIEM Query:
source=application_logs AND ("setValue" AND ("__proto__" OR "constructor" OR "prototype"))