CVE-2024-7108

9.8 CRITICAL

📋 TL;DR

CVE-2024-7108 is an incorrect authorization vulnerability in National Keep Cyber Security Services CyberMath that allows attackers to access functionality not properly constrained by access control lists (ACLs). This affects CyberMath versions before CYBM.240816253, potentially enabling unauthorized access to sensitive features or data.

💻 Affected Systems

Products:
  • National Keep Cyber Security Services CyberMath
Versions: All versions before CYBM.240816253
Operating Systems: Not specified - likely cross-platform as not OS-dependent
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all deployments of CyberMath before the fixed version. The vulnerability is in the authorization logic itself.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could gain administrative privileges, access sensitive data, modify system configurations, or execute arbitrary code with full system compromise.

🟠

Likely Case

Unauthorized users accessing privileged functionality they shouldn't have access to, potentially leading to data exposure or limited system manipulation.

🟢

If Mitigated

With proper network segmentation and least privilege access controls, impact would be limited to the specific CyberMath application scope.

🌐 Internet-Facing: HIGH - If CyberMath is exposed to the internet, attackers could exploit this without authentication to bypass authorization controls.
🏢 Internal Only: MEDIUM - Internal attackers or compromised accounts could exploit this to escalate privileges within the application.

🎯 Exploit Status

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

CWE-863 vulnerabilities typically involve bypassing authorization checks, which often require minimal technical skill to exploit once the vulnerable endpoint is identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: CYBM.240816253 or later

Vendor Advisory: https://www.usom.gov.tr/bildirim/tr-24-1549

Restart Required: Yes

Instructions:

1. Download the latest version from the vendor. 2. Backup current configuration and data. 3. Install the update following vendor instructions. 4. Restart the CyberMath service. 5. Verify the update was successful.

🔧 Temporary Workarounds

Network Access Restriction

linux

Restrict network access to CyberMath to only trusted users and systems

firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="TRUSTED_IP" port port="PORT" protocol="tcp" accept'
firewall-cmd --reload

Application Layer Filtering

all

Implement web application firewall rules to block suspicious authorization bypass attempts

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate CyberMath from untrusted networks
  • Apply principle of least privilege to all user accounts and monitor for unauthorized access attempts

🔍 How to Verify

Check if Vulnerable:

Check the CyberMath version number in the application interface or configuration files. If version is earlier than CYBM.240816253, the system is vulnerable.

Check Version:

Check application interface or consult vendor documentation for version checking method

Verify Fix Applied:

Verify the version shows CYBM.240816253 or later and test authorization controls for proper enforcement.

📡 Detection & Monitoring

Log Indicators:

  • Failed authorization attempts followed by successful access
  • Users accessing functionality outside their normal role patterns
  • Unusual API calls to privileged endpoints

Network Indicators:

  • Unusual traffic patterns to CyberMath authorization endpoints
  • Requests bypassing normal authentication flows

SIEM Query:

source="cybermath" AND (event_type="authorization_failure" OR event_type="privileged_access") | stats count by user, endpoint

🔗 References

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