CVE-2024-35659

5.3 MEDIUM

📋 TL;DR

This CVE describes an Insecure Direct Object Reference (IDOR) vulnerability in the KiviCare WordPress plugin. It allows authenticated users to bypass authorization controls by manipulating object references (like IDs in URLs or parameters) to access unauthorized data or functions. This affects all WordPress sites running KiviCare versions up to 3.6.2.

💻 Affected Systems

Products:
  • KiviCare - Clinic Management System (WordPress plugin)
Versions: n/a through 3.6.2
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with KiviCare plugin enabled. Vulnerability is present in default configurations.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

An authenticated attacker could access, modify, or delete sensitive patient records, appointment data, or clinic management information belonging to other users or clinics, potentially violating privacy regulations and causing operational disruption.

🟠

Likely Case

Authenticated users (including patients or staff with limited privileges) could view or modify data they shouldn't have access to, such as other patients' medical information or clinic schedules.

🟢

If Mitigated

With proper access controls and input validation, unauthorized data access would be prevented, limiting impact to attempted but failed exploitation attempts.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires authenticated access. Attackers manipulate object identifiers (like user IDs, record IDs) in requests to bypass authorization checks.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 3.6.3 or later

Vendor Advisory: https://patchstack.com/database/vulnerability/kivicare-clinic-management-system/wordpress-kivicare-plugin-3-6-2-insecure-direct-object-references-idor-vulnerability

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find KiviCare plugin. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 3.6.3+ from WordPress repository and manually update.

🔧 Temporary Workarounds

Temporary Access Restriction

all

Restrict access to KiviCare functionality to trusted IP addresses only while awaiting patch.

# Example .htaccess rule for Apache
Order Deny,Allow
Deny from all
Allow from 192.168.1.0/24
# Example nginx configuration
location /wp-content/plugins/kivicare {
    allow 192.168.1.0/24;
    deny all;
}

🧯 If You Can't Patch

  • Implement Web Application Firewall (WAF) rules to detect and block IDOR patterns (e.g., sequential ID enumeration, parameter manipulation).
  • Enhance logging and monitoring for unusual access patterns to sensitive KiviCare endpoints, particularly focusing on object ID parameter variations.

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins. If KiviCare version is 3.6.2 or lower, the system is vulnerable.

Check Version:

# From WordPress root directory
grep -r "Version:" wp-content/plugins/kivicare/*.php | head -1

Verify Fix Applied:

After updating, verify KiviCare plugin version shows 3.6.3 or higher in WordPress plugins list.

📡 Detection & Monitoring

Log Indicators:

  • Unusual access patterns to KiviCare endpoints with manipulated ID parameters
  • Failed authorization attempts followed by successful access to similar resources with different IDs
  • User accessing records/resources outside their normal scope

Network Indicators:

  • HTTP requests to KiviCare endpoints with sequential or unusual object IDs in parameters
  • Unusual parameter manipulation in POST/GET requests to plugin URLs

SIEM Query:

source="web_logs" AND url="*kivicare*" AND (parameter="*id*" OR parameter="*user*" OR parameter="*record*") | stats count by src_ip, url, parameter_value

🔗 References

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