Introduction

As electric vehicle (EV) infrastructure expands, these systems have become high-value targets for cybercriminals. A recent advisory (ICSA-26-078-07) has disclosed critical vulnerabilities in IGL-Technologies eParking.fi software. With a CVSS score of 9.4, these flaws are not merely theoretical; they pose a real and immediate threat to the Energy and Transportation sectors.

For defenders, the primary concern is the potential for unauthorized administrative control. Attackers exploiting these vulnerabilities could manipulate charging station operations or launch denial-of-service (DoS) attacks, effectively disrupting critical services and causing significant operational downtime. This post analyzes the technical details of CVE-2026-29796 and provides actionable defense strategies.

Technical Analysis

The vulnerability tracked as CVE-2026-29796 affects all versions of the IGL-Technologies eParking.fi software (vers:all/*). The high severity stems from a cluster of authentication and session management weaknesses that, when chained together, allow for complete system compromise.

Affected Systems:

• Vendor: IGL-Technologies
• Product: eParking.fi
• Versions: All versions
• Sectors: Energy, Transportation Systems
• Deployment: Worldwide

Vulnerability Details: The core issues identified in this advisory include:

1. Missing Authentication for Critical Function: Specific functions within the charging management interface lack security controls, allowing unauthenticated access to administrative features.
2. Improper Restriction of Excessive Authentication Attempts: The software does not effectively limit login attempts, facilitating brute-force attacks against user accounts.
3. Insufficient Session Expiration: User sessions remain active for too long, increasing the risk of session hijacking.
4. Insufficiently Protected Credentials: Credentials may be stored or transmitted in a manner that allows for easy recovery by attackers.

Severity: CVSS v3 9.4 (Critical)

Defensive Monitoring

Detecting exploitation of these vulnerabilities requires a two-pronged approach: identifying vulnerable assets on the network and monitoring for suspicious authentication behaviors. Below are scripts and queries to assist security operations teams.

1. Asset Discovery with PowerShell

Use this PowerShell script to scan your internal network for web interfaces that may be running the vulnerable eParking.fi management software. This helps identify potentially exposed assets that need immediate patching.

# Scan for web interfaces on common ports (80/443) associated with EV Management
# Note: Adjust the IP range and ports based on your specific environment configuration.

$ipRange = "192.168.1.0/24" # Example Subnet
$ports = @(80, 443, 8080)

$hosts = 1..254 | ForEach-Object { "192.168.1.$_" }

foreach ($h in $hosts) {
    foreach ($p in $ports) {
        try {
            $tcp = New-Object System.Net.Sockets.TcpClient
            $connect = $tcp.BeginConnect($h, $p, $null, $null)
            $wait = $connect.AsyncWaitHandle.WaitOne(100, $false)
            if ($wait) {
                Write-Host "[+] Potential Management Interface found at: http$($p -eq 443 ? 's' : '')://$h`:$p"
                # Further investigation required to confirm if it is IGL-Technologies eParking.fi
            }
            $tcp.Close()
        } catch {
            # Connection failed, host likely down or port closed
        }
    }
}

2. Detection of Brute Force Attempts (KQL)

Since one of the vulnerabilities involves "Improper Restriction of Excessive Authentication Attempts," defenders should monitor for spikes in failed logins targeting charging station management portals. This KQL query for Microsoft Sentinel analyzes authentication logs for anomalous behavior.

let threshold = 10; // Threshold for failed attempts within 5 minutes
let timeFrame = 5m;
DeviceLogEvents
| where Timestamp > ago(timeFrame)
| where ActionType has "Failed" 
or ActionType has "LoginFailure"
// Filter for known charging station management IPs or URL patterns if available
| where RemoteIP has_any ("192.168.1.0/24") 
| summarize count() by RemoteIP, bin(Timestamp, timeFrame)
| where count_ > threshold
| project Timestamp, RemoteIP, FailedAttempts=count_
| extend AlertMessage = "Potential brute force attack detected on Charging Station Management Interface"

Remediation

Given the critical nature of these vulnerabilities, immediate action is required to maintain the security and availability of charging infrastructure.

1. Apply Vendor Updates Immediately Contact IGL-Technologies and apply the latest security patches or firmware updates provided by the vendor. Since all versions are currently marked as affected, verify with the vendor that the installed version specifically addresses CVE-2026-29796.

2. Network Segmentation Ensure that charging station management interfaces are not directly accessible from the public internet. Place these devices in a dedicated VLAN (Virtual Local Area Network) with strict access control lists (ACLs) limiting traffic to known, trusted management IP addresses.

3. Enforce Strong Authentication Until patches are fully deployed, mitigate the risk of credential theft by enforcing multi-factor authentication (MFA) on all management portals. If MFA is not supported by the current hardware version, use a secure VPN gateway with MFA as an interim control.

4. Rotate Credentials Due to the "Insufficiently Protected Credentials" vulnerability, assume that existing credentials may be compromised. Force a password rotation for all administrative accounts on the eParking.fi platform immediately.

Related Resources

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