VARIoT IoT vulnerabilities database

A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of packet data. An attacker could exploit this vulnerability by sending a crafted packet to an affected device on TCP port 4786. Only Smart Install client switches are affected. Cisco devices that are configured as a Smart Install director are not affected by this vulnerability. Cisco Bug IDs: CSCvd40673. Vendors have confirmed this vulnerability Bug ID CSCvd40673 It is released as.Service operation interruption (DoS) There is a possibility of being put into a state. An attacker can exploit this issue to cause the device to reload, denying service to legitimate users

A vulnerability in the Switch Integrated Security Features of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an interface queue wedge. The vulnerability is due to incorrect handling of crafted IPv6 packets. An attacker could exploit this vulnerability by sending crafted IPv6 packets through the device. An exploit could allow the attacker to cause an interface queue wedge. This vulnerability affects the Cisco cBR-8 Converged Broadband Router, Cisco ASR 1000 Series Aggregation Services Routers, and Cisco Cloud Services Router 1000V Series when configured with IPv6. In the field and internal testing, this vulnerability was only observed or reproduced on the Cisco cBR-8 Converged Broadband Router. The Cisco ASR 1000 Series Aggregation Services Routers and Cisco Cloud Services Router 1000V Series contain the same code logic, so affected trains have had the code fix applied; however, on these two products, the vulnerability has not been observed in the field or successfully reproduced internally. Cisco Bug IDs: CSCvd75185. Cisco IOS XE The software contains a resource management vulnerability. Vendors have confirmed this vulnerability Bug ID CSCvd75185 It is released as.Service operation interruption (DoS) There is a possibility of being put into a state. Cisco IOS is the interconnected network operating system used on most Cisco system routers and network switches. Cisco IOSXESoftware's SwitchIntegratedSecurity feature handles security vulnerabilities in IPv6 packets, and remote attackers can exploit vulnerabilities to submit special requests for denial of service attacks

A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software performs incomplete input validation of option 82 information that it receives in DHCP Version 4 (DHCPv4) packets from DHCP relay agents. An attacker could exploit this vulnerability by sending a crafted DHCPv4 packet to an affected device. A successful exploit could allow the attacker to cause a heap overflow condition on the affected device, which will cause the device to reload and result in a DoS condition. Cisco Bug IDs: CSCvg62730. Vendors have confirmed this vulnerability Bug ID CSCvg62730 It is released as.Service operation interruption (DoS) There is a possibility of being put into a state. The vulnerability is caused by the fact that the program does not perform complete input verification on option 82 information

Multiple vulnerabilities in the CLI parser of Cisco IOS XE Software could allow an authenticated, local attacker to gain access to the underlying Linux shell of an affected device and execute arbitrary commands with root privileges on the device. The vulnerabilities are due to the affected software improperly sanitizing command arguments to prevent access to internal data structures on a device. An attacker who has user EXEC mode (privilege level 1) access to an affected device could exploit these vulnerabilities on the device by executing CLI commands that contain crafted arguments. A successful exploit could allow the attacker to gain access to the underlying Linux shell of the affected device and execute arbitrary commands with root privileges on the device. Cisco Bug IDs: CSCtw85441, CSCus42252, CSCuv95370. Cisco IOS XE The software contains vulnerabilities related to authorization, permissions, and access control. Vendors have confirmed this vulnerability Bug ID CSCtw85441 , CSCus42252 ,and CSCuv95370 It is released as.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. Cisco IOSXESoftware is a set of operating systems developed by Cisco for its network devices. CLIparser is one of the command line command parsers. There is an elevation of privilege vulnerability in the CLI parser in Cisco IOSXESoftware. The vulnerability stems from a program failing to properly filter command parameters. This may aid in further attacks

A vulnerability in the Cisco Umbrella Integration feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition, related to the OpenDNS software. The vulnerability is due to a logic error that exists when handling a malformed incoming packet, leading to access to an internal data structure after it has been freed. An attacker could exploit this vulnerability by sending crafted, malformed IP packets to an affected device. A successful exploit could allow the attacker to cause an affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCvb86327. Vendors have confirmed this vulnerability Bug ID CSCvb86327 It is released as.Service operation interruption (DoS) There is a possibility of being put into a state

Multiple Buffer Overflow vulnerabilities in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges on an affected device. Cisco Bug IDs: CSCuo17183, CSCvd73487. Cisco IOS , Cisco IOS XE ,and Cisco IOS XR The software contains a buffer error vulnerability. Vendors have confirmed this vulnerability Bug ID CSCuo17183 and CSCvd73487 It is released as.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. Cisco IOS Software, IOSXE Software, and IOSXR Software are operating systems developed by Cisco Systems for their network devices. LinkLayerDiscoveryProtocol (LLDP) subsystem is one of the link layer discovery protocol subsystems. The vulnerability stems from a program failing to properly handle malformed LLDP messages. An attacker could exploit the vulnerability by submitting an LLDP protocol data unit to cause a denial of service or to execute arbitrary code with elevated privileges. Cisco IOS/IOS XE/IOS XR Software are prone to multiple remote code-execution and multiple format-string vulnerabilities. Failed exploit attempts may result in a denial of service conditions. These issues are being tracked by Cisco Bug ID' s CSCuo17183, CSCvd73487 and CSCvd73664

A vulnerability in the IP Version 4 (IPv4) processing code of Cisco IOS XE Software running on Cisco Catalyst 3850 and Cisco Catalyst 3650 Series Switches could allow an unauthenticated, remote attacker to cause high CPU utilization, traceback messages, or a reload of an affected device that leads to a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain IPv4 packets. An attacker could exploit this vulnerability by sending specific IPv4 packets to an IPv4 address on an affected device. A successful exploit could allow the attacker to cause high CPU utilization, traceback messages, or a reload of the affected device that leads to a DoS condition. If the switch does not reboot when under attack, it would require manual intervention to reload the device. This vulnerability affects Cisco Catalyst 3850 and Cisco Catalyst 3650 Series Switches that are running Cisco IOS XE Software Release 16.1.1 or later, until the first fixed release, and are configured with an IPv4 address. Cisco Bug IDs: CSCvd80714. Cisco IOS XE The software contains data processing vulnerabilities and resource management vulnerabilities. Vendors have confirmed this vulnerability Cisco Bug ID : CSCvd80714 It is released as.Service operation interruption (DoS) There is a possibility of being put into a state. IOSXESoftware is a set of Cisco device-specific operating systems running on it

A vulnerability in the CLI parser of Cisco IOS XE Software could allow an authenticated, local attacker to gain access to the underlying Linux shell of an affected device and execute arbitrary commands with root privileges on the device. The vulnerability is due to the affected software improperly sanitizing command arguments to prevent access to internal data structures on a device. An attacker who has privileged EXEC mode (privilege level 15) access to an affected device could exploit this vulnerability on the device by executing CLI commands that contain crafted arguments. A successful exploit could allow the attacker to gain access to the underlying Linux shell of the affected device and execute arbitrary commands with root privileges on the device. Cisco Bug IDs: CSCuv91356. Cisco IOS XE The software contains vulnerabilities related to authorization, permissions, and access control. Vendors have confirmed this vulnerability Bug ID CSCuv91356 It is released as.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. Cisco IOS is the interconnected network operating system used on most Cisco system routers and network switches. This may aid in further attacks. CLI parser is one of the command line command parsers. The vulnerability is caused by the fact that the program does not have correct filtering command parameters

A vulnerability in the CLI parser of Cisco IOS XE Software could allow an authenticated, local attacker to gain access to the underlying Linux shell of an affected device and execute arbitrary commands with root privileges on the device. The vulnerability is due to the affected software improperly sanitizing command arguments to prevent access to internal data structures on a device. An attacker who has privileged EXEC mode (privilege level 15) access to an affected device could exploit this vulnerability on the device by executing CLI commands that contain crafted arguments. A successful exploit could allow the attacker to gain access to the underlying Linux shell of the affected device and execute arbitrary commands with root privileges on the device. Cisco Bug IDs: CSCve74432. Cisco IOS XE The software contains vulnerabilities related to authorization, permissions, and access control. Vendors have confirmed this vulnerability Bug ID CSCve74432 It is released as.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. This may aid in further attacks. CLI parser is one of the command line command parsers. The vulnerability is caused by the program not filtering command parameters correctly

Multiple vulnerabilities in the CLI parser of Cisco IOS XE Software could allow an authenticated, local attacker to inject arbitrary commands into the CLI of the affected software, which could allow the attacker to gain access to the underlying Linux shell of an affected device and execute commands with root privileges on the device. The vulnerabilities exist because the affected software does not sufficiently sanitize command arguments before passing commands to the Linux shell for execution. An attacker could exploit these vulnerabilities by submitting a malicious CLI command to the affected software. A successful exploit could allow the attacker to break from the CLI of the affected software, which could allow the attacker to gain access to the underlying Linux shell on an affected device and execute arbitrary commands with root privileges on the device. Cisco Bug IDs: CSCuz03145, CSCuz56419, CSCva31971, CSCvb09542. Cisco IOS XE The software includes OS A command injection vulnerability exists. Vendors have confirmed this vulnerability Bug ID CSCuz03145 , CSCuz56419 , CSCva31971 ,and CSCvb09542 It is released as.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. Cisco IOSXESoftware is a set of operating systems developed by Cisco for its network devices. CLIparser is one of the command line command parsers. This may aid in further attacks

Multiple vulnerabilities in the CLI parser of Cisco IOS XE Software could allow an authenticated, local attacker to gain access to the underlying Linux shell of an affected device and execute arbitrary commands with root privileges on the device. The vulnerabilities are due to the affected software improperly sanitizing command arguments to prevent access to internal data structures on a device. An attacker who has user EXEC mode (privilege level 1) access to an affected device could exploit these vulnerabilities on the device by executing CLI commands that contain crafted arguments. A successful exploit could allow the attacker to gain access to the underlying Linux shell of the affected device and execute arbitrary commands with root privileges on the device. Cisco Bug IDs: CSCtw85441, CSCus42252, CSCuv95370. Cisco IOS XE The software includes OS A command injection vulnerability exists. Vendors have confirmed this vulnerability Cisco Bug ID : CSCtw85441 , CSCus42252 ,and CSCuv95370 It is released as.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. This may aid in further attacks. CLI parser is one of the command line command parsers

A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software performs incomplete input validation of option 82 information that it receives in DHCP Version 4 (DHCPv4) packets from DHCP relay agents. An attacker could exploit this vulnerability by sending a crafted DHCPv4 packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCuh91645. Vendors have confirmed this vulnerability Bug ID CSCuh91645 It is released as.Service operation interruption (DoS) There is a possibility of being put into a state. The vulnerability is caused by the fact that the program does not perform complete input verification on option 82 information

Multiple vulnerabilities in the Login Enhancements (Login Block) feature of Cisco IOS Software could allow an unauthenticated, remote attacker to trigger a reload of an affected system, resulting in a denial of service (DoS) condition. These vulnerabilities affect Cisco devices that are running Cisco IOS Software Release 15.4(2)T, 15.4(3)M, or 15.4(2)CG and later. Cisco Bug IDs: CSCuy32360, CSCuz60599. Vendors have confirmed this vulnerability Cisco Bug ID : CSCuy32360 and CSCuz60599 It is released as.Service operation interruption (DoS) There is a possibility of being put into a state. Attackers can exploit these issues to cause a reload of the affected device, resulting in a denial-of-service condition

Multiple vulnerabilities in the Login Enhancements (Login Block) feature of Cisco IOS Software could allow an unauthenticated, remote attacker to trigger a reload of an affected system, resulting in a denial of service (DoS) condition. These vulnerabilities affect Cisco devices that are running Cisco IOS Software Release 15.4(2)T, 15.4(3)M, or 15.4(2)CG and later. Cisco Bug IDs: CSCuy32360, CSCuz60599. Vendors have confirmed this vulnerability Bug ID CSCuy32360 and CSCuz60599 It is released as.Service operation interruption (DoS) There is a possibility of being put into a state. Attackers can exploit these issues to cause a reload of the affected device, resulting in a denial-of-service condition

Format String vulnerability in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges on an affected device. Cisco Bug IDs: CSCvd73664. Vendors have confirmed this vulnerability Cisco Bug ID : CSCvd73664 It is released as.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. Cisco IOS/IOS XE/IOS XR Software are prone to multiple remote code-execution and multiple format-string vulnerabilities. An attacker can exploit these issues to execute arbitrary code with elevated privileges within the context of an affected system. Failed exploit attempts may result in a denial of service conditions. These issues are being tracked by Cisco Bug ID' s CSCuo17183, CSCvd73487 and CSCvd73664. Link Layer Discovery Protocol (LLDP) subsystem is one of the link layer discovery protocol subsystems. The vulnerability stems from the fact that the program does not correctly handle fields in LLDP messages

Multiple vulnerabilities in the web-based user interface (web UI) of Cisco IOS XE Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web UI of the affected software. The vulnerabilities are due to insufficient input validation of certain parameters that are passed to the affected software via the web UI. An attacker could exploit these vulnerabilities by persuading a user of the affected UI to access a malicious link or by intercepting a user request for the affected UI and injecting malicious code into the request. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected UI or allow the attacker to access sensitive browser-based information on the user's system. Cisco Bug IDs: CSCuz38591, CSCvb09530, CSCvb10022. Vendors have confirmed this vulnerability Bug ID CSCuz38591 , CSCvb09530 ,and CSCvb10022 It is released as.Information may be obtained and information may be altered. Cisco IOSXESoftware is a set of operating systems developed by Cisco for its network devices. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks

Multiple vulnerabilities in the web-based user interface (web UI) of Cisco IOS XE Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web UI of the affected software. The vulnerabilities are due to insufficient input validation of certain parameters that are passed to the affected software via the web UI. An attacker could exploit these vulnerabilities by persuading a user of the affected UI to access a malicious link or by intercepting a user request for the affected UI and injecting malicious code into the request. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected UI or allow the attacker to access sensitive browser-based information on the user's system. Cisco Bug IDs: CSCuz38591, CSCvb09530, CSCvb10022. Vendors have confirmed this vulnerability Bug ID CSCuz38591 , CSCvb09530 ,and CSCvb10022 It is released as.Information may be obtained and information may be altered. Cisco IOSXESoftware is a set of operating systems developed by Cisco for its network devices. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks

Multiple vulnerabilities in the web-based user interface (web UI) of Cisco IOS XE Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web UI of the affected software. The vulnerabilities are due to insufficient input validation of certain parameters that are passed to the affected software via the web UI. An attacker could exploit these vulnerabilities by persuading a user of the affected UI to access a malicious link or by intercepting a user request for the affected UI and injecting malicious code into the request. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected UI or allow the attacker to access sensitive browser-based information on the user's system. Cisco Bug IDs: CSCuz38591, CSCvb09530, CSCvb10022. Vendors have confirmed this vulnerability Bug ID CSCuz38591 , CSCvb09530 ,and CSCvb10022 It is released as.Information may be obtained and information may be altered. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks

Multiple vulnerabilities in the CLI parser of Cisco IOS XE Software could allow an authenticated, local attacker to inject arbitrary commands into the CLI of the affected software, which could allow the attacker to gain access to the underlying Linux shell of an affected device and execute commands with root privileges on the device. The vulnerabilities exist because the affected software does not sufficiently sanitize command arguments before passing commands to the Linux shell for execution. An attacker could exploit these vulnerabilities by submitting a malicious CLI command to the affected software. A successful exploit could allow the attacker to break from the CLI of the affected software, which could allow the attacker to gain access to the underlying Linux shell on an affected device and execute arbitrary commands with root privileges on the device. Cisco Bug IDs: CSCuz03145, CSCuz56419, CSCva31971, CSCvb09542. Cisco IOS XE The software includes OS A command injection vulnerability exists. Vendors have confirmed this vulnerability Bug ID CSCuz03145 , CSCuz56419 , CSCva31971 ,and CSCvb09542 It is released as.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. Cisco IOSXESoftware is a set of operating systems developed by Cisco for its network devices. CLIparser is one of the command line command parsers. This may aid in further attacks

Multiple vulnerabilities in the CLI parser of Cisco IOS XE Software could allow an authenticated, local attacker to inject arbitrary commands into the CLI of the affected software, which could allow the attacker to gain access to the underlying Linux shell of an affected device and execute commands with root privileges on the device. The vulnerabilities exist because the affected software does not sufficiently sanitize command arguments before passing commands to the Linux shell for execution. An attacker could exploit these vulnerabilities by submitting a malicious CLI command to the affected software. A successful exploit could allow the attacker to break from the CLI of the affected software, which could allow the attacker to gain access to the underlying Linux shell on an affected device and execute arbitrary commands with root privileges on the device. Cisco Bug IDs: CSCuz03145, CSCuz56419, CSCva31971, CSCvb09542. Cisco IOS XE The software includes OS A command injection vulnerability exists. Vendors have confirmed this vulnerability Bug ID CSCuz03145 , CSCuz56419 , CSCva31971 ,and CSCvb09542 It is released as.Information is obtained, information is altered, and service operation is disrupted (DoS) There is a possibility of being put into a state. This may aid in further attacks. CLI parser is one of the command line command parsers