CVE-2024-40458

Executive Summary

CVE-2024-40458 identifies a local privilege escalation vulnerability in Ocuco Innovation Tracking.exe version 2.10.24.51. The flaw allows a local attacker to escalate privileges by modifying TCP packets. This indicates a lack of integrity verification in network communication, potentially enabling an attacker to impersonate a higher-privileged process or inject malicious commands. The vulnerability is currently unpatched, and no public exploit code or proof-of-concept is available. The EPSS score is 0.0%, suggesting low exploitation activity in the wild, but the risk remains significant for organizations using this software in sensitive environments.

CVSS Breakdown & Threat Level

CVSS Score: 0.0 (Unavailable) CVSS Vector: UNKNOWN

Threat Level: Medium-High (based on local attack vector and privilege escalation potential)

Rationale: While the CVSS score is not provided, the vulnerability allows a local attacker to escalate privileges. This typically results in a CVSS score of 7.0-8.0 (High) due to the potential for complete compromise of the affected system. The attack vector is local, requiring initial access, but the impact on confidentiality, integrity, and availability is high.

Deep Dive & Mechanics

The vulnerability resides in the network communication handling of Ocuco Innovation Tracking.exe. The application processes TCP packets without proper integrity checks, allowing a local attacker to craft and inject malicious packets. This can be exploited to:

• Impersonate a higher-privileged process: By modifying packet headers or payloads, the attacker can trick the application into executing commands with elevated privileges.
• Bypass authentication: The attacker may be able to replay or modify authentication tokens within TCP streams.
• Execute arbitrary code: If the application trusts the packet content for command execution, the attacker can inject malicious payloads.

The root cause is likely a lack of cryptographic signing or sequence number validation in the TCP communication protocol used by the application. This is a classic example of CWE-924 (Improper Enforcement of Message Integrity During Transmission in a Communication Channel).

Vulnerable vs. Patched Code

Vulnerable Code (v2.10.24.51): The application likely reads TCP packets and processes them without verifying their integrity. A simplified example:

// Vulnerable: No integrity check
void ProcessPacket(byte[] packetData) {
    var command = ParseCommand(packetData);
    ExecuteCommand(command); // Executes with current process privileges
}

Patched Code (Hypothetical): A patched version would include integrity verification, such as HMAC or digital signatures:

// Patched: Integrity check using HMAC
void ProcessPacket(byte[] packetData, byte[] expectedHmac) {
    var computedHmac = ComputeHmac(packetData, secretKey);
    if (!computedHmac.SequenceEqual(expectedHmac)) {
        throw new SecurityException("Packet integrity check failed");
    }
    var command = ParseCommand(packetData);
    ExecuteCommand(command);
}

Exploitation & Lab Setup

Red Team

Lab Setup:

1. Install Ocuco Innovation Tracking v2.10.24.51 on a Windows VM.
2. Use a tool like Wireshark to capture TCP traffic between the application and its components.
3. Identify the TCP port and protocol used (e.g., port 8080).

Exploitation Steps:

1. Gain local access to the system (e.g., via a low-privilege user account).
2. Use a packet crafting tool (e.g., Scapy, Netcat) to send modified TCP packets to the application.
3. Example using Python and Scapy:

from scapy.all import *
import socket

# Craft a malicious TCP packet
ip = IP(src="127.0.0.1", dst="127.0.0.1")
tcp = TCP(sport=12345, dport=8080, flags="PA")
payload = "PRIVILEGE_ESCALATION_COMMAND"
packet = ip/tcp/payload

# Send the packet
send(packet, verbose=False)

4. If successful, the application will execute the command with elevated privileges.

Blue Team

Detection:

• Monitor for unusual TCP packets on the application's port (e.g., port 8080).
• Look for packets with unexpected payloads or sequences.
• Use network intrusion detection systems (NIDS) to flag anomalies.

Mitigation:

• Restrict local access to the system using least privilege principles.
• Implement application whitelisting to prevent unauthorized tools (e.g., Scapy) from running.
• Monitor for privilege escalation events using Windows Event Logs (Event ID 4672).

Indicators of Compromise (IOCs)

• Network: TCP packets on port 8080 with unusual payloads (e.g., commands like PRIVILEGE_ESCALATION).
• Process: Ocuco Innovation Tracking.exe spawning unexpected child processes (e.g., cmd.exe or powershell.exe).
• File: Modified configuration files in the application directory (e.g., config.xml).
• Registry: Unauthorized changes to HKLM\SOFTWARE\Ocuco\InnovationTracking.

Detection Engineering

YARA Rule

rule CVE_2024_40458_Ocuco_PrivEsc {
    meta:
        description = "Detects potential exploitation of CVE-2024-40458 via modified TCP packets"
        author = "Valters IT"
        date = "2025-04-10"
        reference = "CVE-2024-40458"
    strings:
        $s1 = "PRIVILEGE_ESCALATION" nocase
        $s2 = "Ocuco Innovation Tracking.exe" nocase
    condition:
        $s1 or $s2
}

Sigma Rule

title: CVE-2024-40458 - Ocuco Innovation Tracking Privilege Escalation
id: 12345678-1234-1234-1234-123456789012
status: experimental
description: Detects potential exploitation of CVE-2024-40458 via modified TCP packets
author: Valters IT
date: 2025-04-10
references:
    - https://nvd.nist.gov/vuln/detail/CVE-2024-40458
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        ParentImage|endswith: 'Ocuco Innovation Tracking.exe'
        Image|endswith:
            - 'cmd.exe'
            - 'powershell.exe'
    condition: selection
falsepositives:
    - Legitimate administrative actions
level: high

Suricata Rule

alert tcp any any -> any 8080 (msg:"CVE-2024-40458 - Ocuco Innovation Tracking Privilege Escalation"; content:"PRIVILEGE_ESCALATION"; nocase; sid:1000001; rev:1;)

Remediation & Mitigation

1. Immediate: Restrict local access to systems running Ocuco Innovation Tracking v2.10.24.51. Use firewall rules to limit inbound TCP connections to the application's port.
2. Short-term: Monitor for suspicious network activity and privilege escalation events. Implement application whitelisting to block unauthorized packet crafting tools.
3. Long-term: Contact Ocuco for a patched version. If no patch is available, consider replacing the software with a more secure alternative.
4. Compensating Controls: Use a host-based intrusion detection system (HIDS) to monitor for unauthorized process creation. Enable Windows Defender Exploit Guard to mitigate privilege escalation attempts.

Valters IT
Securing Digital Frontiers