CVE-2022-0121
📋 TL;DR
This CVE describes a cross-site scripting (XSS) vulnerability in hoppscotch, an API development tool. Attackers can inject malicious scripts into web pages, potentially stealing user data or performing unauthorized actions. Users of hoppscotch versions before 2.1.1 are affected.
💻 Affected Systems
- hoppscotch/hoppscotch
📦 What is this software?
Hoppscotch by Hoppscotch
⚠️ Risk & Real-World Impact
Worst Case
Complete account takeover, session hijacking, credential theft, and unauthorized API requests on behalf of authenticated users.
Likely Case
Session hijacking, credential theft, and unauthorized API requests through malicious script execution.
If Mitigated
Limited impact with proper input validation and output encoding; potential for minor data exposure.
🎯 Exploit Status
XSS vulnerabilities are commonly exploited with readily available tools and techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.1.1
Vendor Advisory: https://github.com/hoppscotch/hoppscotch/commit/86ef1a4e143ea5bb0c7b309574127cc39d4faa74
Restart Required: Yes
Instructions:
1. Update hoppscotch to version 2.1.1 or later. 2. Restart the hoppscotch service/application. 3. Verify the update was successful.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement strict input validation and output encoding for user-supplied data.
Content Security Policy (CSP)
allDeploy a strict CSP header to mitigate XSS impact.
🧯 If You Can't Patch
- Isolate the hoppscotch instance from sensitive networks and data.
- Implement web application firewall (WAF) rules to block XSS payloads.
🔍 How to Verify
Check if Vulnerable:
Check the hoppscotch version; if it's below 2.1.1, it's vulnerable.Check Version:
Check the application interface or deployment configuration for version information.Verify Fix Applied:
Confirm the hoppscotch version is 2.1.1 or later and test for XSS payloads.📡 Detection & Monitoring
Log Indicators:
- Unusual script tags or JavaScript payloads in request logs
- Multiple failed login attempts or session anomalies
Network Indicators:
- Suspicious outbound connections to unknown domains
- Unexpected data exfiltration patterns
SIEM Query:
Search for patterns like '<script>', 'javascript:', or encoded payloads in web request logs.🔗 References
- https://github.com/hoppscotch/hoppscotch/commit/86ef1a4e143ea5bb0c7b309574127cc39d4faa74
- https://huntr.dev/bounties/b70a6191-8226-4ac6-b817-cae7332a68ee
- https://github.com/hoppscotch/hoppscotch/commit/86ef1a4e143ea5bb0c7b309574127cc39d4faa74
- https://huntr.dev/bounties/b70a6191-8226-4ac6-b817-cae7332a68ee
