CVE-2023-3083
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in TeamPass allows attackers to inject malicious scripts that execute when other users view affected pages. It affects all TeamPass installations prior to version 3.0.9. Attackers could steal session cookies, redirect users, or perform actions on their behalf.
💻 Affected Systems
- TeamPass
📦 What is this software?
Teampass by Teampass
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the TeamPass instance, allowing attackers to steal all stored passwords, modify credentials, and gain persistent access to the system.
Likely Case
Session hijacking leading to unauthorized access to stored credentials, potential credential theft, and privilege escalation within TeamPass.
If Mitigated
Limited impact with proper input validation and output encoding, potentially only affecting specific user sessions.
🎯 Exploit Status
Exploitation requires authenticated access to TeamPass. The vulnerability is well-documented with public proof-of-concept available through the referenced bounty reports.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.0.9
Vendor Advisory: https://github.com/nilsteampassnet/teampass/commit/79731553fa305d45dabb7a227f3074d56d7c94c1
Restart Required: No
Instructions:
1. Backup your TeamPass installation and database. 2. Download TeamPass 3.0.9 or later from the official repository. 3. Replace all files with the new version, preserving your configuration files. 4. Run any database migration scripts if provided. 5. Verify the installation works correctly.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side input validation to sanitize user inputs before processing.
Content Security Policy
allImplement strict Content Security Policy headers to mitigate XSS impact.
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads
- Restrict user permissions and implement principle of least privilege
🔍 How to Verify
Check if Vulnerable:
Check your TeamPass version. If it's below 3.0.9, you are vulnerable.Check Version:
Check the version.php file or TeamPass admin interface for version informationVerify Fix Applied:
After updating to 3.0.9 or later, verify the version and test that user inputs are properly sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual script tags or JavaScript in user inputs
- Multiple failed login attempts followed by successful login from same IP
Network Indicators:
- Unexpected outbound connections from TeamPass server
- Suspicious JavaScript payloads in HTTP requests
SIEM Query:
source="teampass_logs" AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")🔗 References
- https://github.com/nilsteampassnet/teampass/commit/79731553fa305d45dabb7a227f3074d56d7c94c1
- https://huntr.dev/bounties/c6b29e46-02e0-43ad-920f-28ac482ea2ab
- https://github.com/nilsteampassnet/teampass/commit/79731553fa305d45dabb7a227f3074d56d7c94c1
- https://huntr.dev/bounties/c6b29e46-02e0-43ad-920f-28ac482ea2ab
