CVE-2020-11919
📋 TL;DR
CVE-2020-11919 is a Cross-Site Request Forgery (CSRF) vulnerability in Siime Eye 14.1.00000001.3.330.0.0.3.14 that allows attackers to trick authenticated users into performing unintended actions. This affects all users of the vulnerable Siime Eye software version who access the application through a web browser.
💻 Affected Systems
- Siime Eye
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could perform administrative actions like changing configurations, creating new privileged accounts, or modifying system settings without the victim's knowledge.
Likely Case
Attackers trick users into changing their own account settings, modifying application preferences, or performing limited administrative actions.
If Mitigated
With proper CSRF protections, all unauthorized requests would be rejected, preventing any unintended actions.
🎯 Exploit Status
CSRF attacks typically require the victim to be authenticated and visit a malicious page while logged into the vulnerable application.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a newer version if available or implementing CSRF protection mechanisms.
🔧 Temporary Workarounds
Implement CSRF Tokens
allAdd anti-CSRF tokens to all state-changing requests and validate them server-side.
Use SameSite Cookies
allSet SameSite=Strict or SameSite=Lax attributes on session cookies to prevent cross-site requests.
Set-Cookie: session=value; SameSite=Strict; Secure; HttpOnly
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to detect and block CSRF attempts
- Educate users about the risks of clicking unknown links while authenticated
🔍 How to Verify
Check if Vulnerable:
Check if the application version matches 14.1.00000001.3.330.0.0.3.14 and test for CSRF protection on state-changing endpoints.Check Version:
Check application documentation or interface for version informationVerify Fix Applied:
Verify that all POST/PUT/DELETE requests require and validate CSRF tokens, and that SameSite cookie attributes are properly set.📡 Detection & Monitoring
Log Indicators:
- Multiple failed state-changing requests from different IPs
- Unusual administrative actions from unexpected user sessions
Network Indicators:
- Requests to state-changing endpoints without proper referrer headers
- Cross-origin requests to sensitive endpoints
SIEM Query:
web_requests method=POST AND (NOT referrer CONTAINS 'expected-domain') AND uri CONTAINS 'sensitive-endpoint'