CVE-2020-24983
📋 TL;DR
This is a Cross-Site Request Forgery (CSRF) vulnerability in Quadbase EspressReports ES that allows unauthenticated attackers to trick administrators into performing unauthorized actions. Attackers can create malicious HTML files that send POST requests to change dashboard names using the victim's admin session. Organizations using affected versions of Quadbase EspressReports ES are vulnerable.
💻 Affected Systems
- Quadbase EspressReports ES
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could modify all dashboard configurations, potentially altering critical business intelligence reports or disrupting dashboard functionality across the organization.
Likely Case
Attackers change dashboard names to cause confusion, disrupt operations, or embed malicious content in dashboard displays that could lead to further attacks.
If Mitigated
With proper CSRF protections, the vulnerability is neutralized and no unauthorized actions can be performed through forged requests.
🎯 Exploit Status
Exploitation requires the victim to visit a malicious page while authenticated to the EspressReports ES admin interface.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not publicly available
Restart Required: No
Instructions:
Check Quadbase vendor website for security updates. If no patch is available, implement CSRF protection mechanisms in the application.
🔧 Temporary Workarounds
Implement CSRF Tokens
allAdd anti-CSRF tokens to all state-changing requests in the DashboardBuilder interface
SameSite Cookie Attribute
allSet SameSite=Strict or SameSite=Lax attributes on session cookies
🧯 If You Can't Patch
- Implement a web application firewall (WAF) with CSRF protection rules
- Restrict access to the EspressReports ES interface to trusted networks only
🔍 How to Verify
Check if Vulnerable:
Test if POST requests to DashboardBuilder endpoints lack CSRF token validation by attempting to submit requests without proper tokensCheck Version:
Check application version in EspressReports ES admin interface or configuration filesVerify Fix Applied:
Verify that all state-changing requests require valid CSRF tokens and that SameSite cookie attributes are properly configured📡 Detection & Monitoring
Log Indicators:
- Multiple dashboard name change requests from same IP
- Dashboard modifications without corresponding user actions in audit logs
Network Indicators:
- POST requests to DashboardBuilder endpoints with Referer headers pointing to external domains
- Unusual patterns of dashboard modification requests
SIEM Query:
source="espressreports" AND (action="dashboard_modify" OR endpoint="/DashboardBuilder") AND NOT referer CONTAINS "yourdomain.com"