In Rockwell Automation FactoryTalk Services Platform 2.90 and earlier, a remote unauthenticated attacker could send numerous crafted packets to service ports resulting in memory consumption that could lead to a partial or complete denial-of-service condition to the affected services.

A denial-of-service vulnerability exists in the Ethernet/IP server functionality of Rockwell Automation RSLinx Classic 2.57.00.14 CPR 9 SR 3. A specially crafted network request can lead to a denial of service. An attacker can send a sequence of malicious packets to trigger this vulnerability.

The FactoryTalk (FT) RNADiagReceiver service in Rockwell Automation Allen-Bradley FactoryTalk CPR9 through SR5 and RSLogix 5000 17 through 20 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted packet.

RnaUtility.dll in RsvcHost.exe 2.30.0.23 in Rockwell RSLogix 19 and earlier allows remote attackers to cause a denial of service (crash) via a crafted rna packet with a long string to TCP port 4446 that triggers (1) "a memset zero overflow" or (2) an out-of-bounds read, related to improper handling of a 32-bit size field.

When an authenticated password change request takes place, this vulnerability could allow the attacker to intercept the message that includes the legitimate, new password hash and replace it with an illegitimate hash. The user would no longer be able to authenticate to the controller (Micro800: All versions, MicroLogix 1400: Version 21 and later) causing a denial-of-service condition

Rockwell Automation RSLinx Classic Versions 4.00.01 and prior. A remote, unauthenticated threat actor may intentionally send specially crafted Ethernet/IP packets to Port 44818, causing the software application to stop responding and crash. The user must restart the software to regain functionality.

Improperly implemented option-field processing in the TCP/IP stack on Allen-Bradley L30ERMS safety devices v30 and earlier causes a denial of service. When a crafted TCP packet is received, the device reboots immediately.

Rockwell Automation RSLinx Enterprise Software (LogReceiver.exe) CPR9, CPR9-SR1, CPR9-SR2, CPR9-SR3, CPR9-SR4, CPR9-SR5, CPR9-SR5.1, and CPR9-SR6 does not handle input correctly and results in a logic error if it calculates an incorrect value for the “End of Current Record” field. By sending a datagram to the service over Port 4444/UDP with the “Record Data Size” field modified to a specifically oversized value, the service will calculate an undersized value for the “Total Record Size.” Then the service will calculate an incorrect value for the “End of Current Record” field causing access violations that lead to a service crash. The service can be recovered with a manual reboot. The patches and details pertaining to these vulnerabilities can be found at the following Rockwell Automation security advisory link (login is required): https://rockwellautomation.custhelp.com/app/answers/detail/a_id/537599

Rockwell Automation RSLinx Enterprise Software (LogReceiver.exe) CPR9, CPR9-SR1, CPR9-SR2, CPR9-SR3, CPR9-SR4, CPR9-SR5, CPR9-SR5.1, and CPR9-SR6 does not handle input correctly and results in a logic error if it calculates an incorrect value for the “Total Record Size” field. By sending a datagram to the service over Port 4444/UDP with the “Record Data Size” field modified to a specifically oversized value, the service will calculate an undersized value for the “Total Record Size” that will cause an out-of-bounds read access violation that leads to a service crash. The service can be recovered with a manual reboot. The patches and details pertaining to these vulnerabilities can be found at the following Rockwell Automation Security Advisory link (login is required): https://rockwellautomation.custhelp.com/app/answers/detail/a_id/537599

Rockwell Automation RSLinx Enterprise Software (LogReceiver.exe) CPR9, CPR9-SR1, CPR9-SR2, CPR9-SR3, CPR9-SR4, CPR9-SR5, CPR9-SR5.1, and CPR9-SR6 does not handle input correctly and results in a logic error if it receives a datagram with an incorrect value in the “Record Data Size” field. By sending a datagram to the service over Port 4444/UDP with the “Record Data Size” field modified to an oversized value, an attacker could cause an out-of-bounds read access violation that leads to a service crash. The service can be recovered with a manual reboot. The patches and details pertaining to this vulnerability can be found at the following Rockwell Automation Security Advisory link (login is required): https://rockwellautomation.custhelp.com/app/answers/detail/a_id/537599

An Improper Input Validation issue was discovered in Rockwell Automation MicroLogix 1100 controllers 1763-L16BWA, 1763-L16AWA, 1763-L16BBB, and 1763-L16DWD. A remote, unauthenticated attacker could send a single, specially crafted Programmable Controller Communication Commands (PCCC) packet to the controller that could potentially cause the controller to enter a DoS condition.

An unauthenticated remote attacker can send data to RsvcHost.exe listening on TCP port 5241 to add entries in the FactoryTalk Diagnostics event log. The attacker can specify long fields in the log entry, which can cause an unhandled exception in wcscpy_s() if a local user opens FactoryTalk Diagnostics Viewer (FTDiagViewer.exe) to view the log entry. Observed in FactoryTalk Diagnostics 6.11. All versions of FactoryTalk Diagnostics are affected.

An exploitable denial of service vulnerability exists in the ENIP Request Path Logical Segment functionality of Allen-Bradley Flex IO 1794-AENT/B 4.003. A specially crafted network request can cause a loss of communications with the device resulting in denial-of-service. An attacker can send a malicious packet to trigger this vulnerability by sending an Electronic Key Segment with less than 0x18 bytes following the Key Format field.

An exploitable denial of service vulnerability exists in the ENIP Request Path Port Segment functionality of Allen-Bradley Flex IO 1794-AENT/B. A specially crafted network request can cause a loss of communications with the device resulting in denial-of-service. An attacker can send a malicious packet to trigger this vulnerability.

An attacker-controlled memory allocation size can be passed to the C++ new operator in RnaDaSvr.dll by sending a specially crafted ConfigureItems message to TCP port 4241. This will cause an unhandled exception, resulting in termination of RSLinxNG.exe. Observed in FactoryTalk 6.11. All versions of FactoryTalk Linx are affected.

An attacker can craft and send an OpenNamespace message to port 4241 with valid session-id that triggers an unhandled exception in CFTLDManager::HandleRequest function in RnaDaSvr.dll, resulting in process termination. Observed in FactoryTalk Linx 6.11. All versions of FactoryTalk Linx are affected.

The FactoryTalk (FT) RNADiagReceiver service in Rockwell Automation Allen-Bradley FactoryTalk CPR9 through SR5 and RSLogix 5000 17 through 20 does not properly handle the return value from an unspecified function, which allows remote attackers to cause a denial of service (service outage) via a crafted packet.

An exploitable denial of service vulnerability exists in the program download functionality of Allen Bradley Micrologix 1400 Series B FRN 21.2 and before. A specially crafted packet can cause a device fault resulting in halted operations. An attacker can send an unauthenticated packet to trigger this vulnerability.

An exploitable insufficient resource pool vulnerability exists in the session communication functionality of Allen Bradley Micrologix 1400 Series B Firmware 21.2 and before. A specially crafted stream of packets can cause a flood of the session resource pool resulting in legitimate connections to the PLC being disconnected. An attacker can send unauthenticated packets to trigger this vulnerability.

An exploitable denial of service vulnerability exists in the processing of snmp-set commands of the Allen Bradley Micrologix 1400 Series B FRN 21.2 and below. A specially crafted snmp-set request, when sent without associated firmware flashing snmp-set commands, can cause a device power cycle resulting in downtime for the device. An attacker can send one packet to trigger this vulnerability.

An exploitable denial of service vulnerability exists in the Ethernet functionality of the Allen Bradley Micrologix 1400 Series B FRN 21.2 and below. A specially crafted packet can cause a device power cycle resulting in a fault state and deletion of ladder logic. An attacker can send one unauthenticated packet to trigger this vulnerability

Rockwell Automation MicroLogix 1100, all versions, allows a remote, unauthenticated attacker sending specially crafted commands to cause the PLC to fault when the controller is switched to RUN mode, which results in a denial-of-service condition. If successfully exploited, this vulnerability will cause the controller to fault whenever the controller is switched to RUN mode.

An exploitable denial of service vulnerability exists in the ENIP Request Path Data Segment functionality of Allen-Bradley Flex IO 1794-AENT/B. A specially crafted network request can cause a loss of communications with the device resulting in denial-of-service. An attacker can send a malicious packet to trigger this vulnerability.If the Simple Segment Sub-Type is supplied, the device treats the byte following as the Data Size in words. When this value represents a size greater than what remains in the packet data, the device enters a fault state where communication with the device is lost and a physical power cycle is required.

An exploitable denial of service vulnerability exists in the ENIP Request Path Network Segment functionality of Allen-Bradley Flex IO 1794-AENT/B 4.003. A specially crafted network request can cause a loss of communications with the device resulting in denial-of-service. An attacker can send a malicious packet to trigger this vulnerability.

Rockwell Automation EtherNet/IP Web Server Modules 1756-EWEB (includes 1756-EWEBK) Version 5.001 and earlier, and CompactLogix 1768-EWEB Version 2.005 and earlier. A remote attacker could send a crafted UDP packet to the SNMP service causing a denial-of-service condition to occur until the affected product is restarted.

An exploitable denial of service vulnerability exists in the ENIP Request Path Logical Segment functionality of Allen-Bradley Flex IO 1794-AENT/B 4.003. A specially crafted network request can cause a loss of communications with the device resulting in denial-of-service. An attacker can send a malicious packet to trigger this vulnerability by sending an Electronic Key Segment with less bytes than required by the Key Format Table.

An exploitable denial of service vulnerability exists in the ENIP Request Path Data Segment functionality of Allen-Bradley Flex IO 1794-AENT/B. A specially crafted network request can cause a loss of communications with the device resulting in denial-of-service. An attacker can send a malicious packet to trigger this vulnerability If the ANSI Extended Symbol Segment Sub-Type is supplied, the device treats the byte following as the Data Size in words. When this value represents a size greater than what remains in the packet data, the device enters a fault state where communication with the device is lost and a physical power cycle is required.

An exploitable denial-of-service vulnerability exists in the IPv4 functionality of Allen-Bradley MicroLogix 1100 Programmable Logic Controller Systems Series B FRN 16.000, Series B FRN 15.002, Series B FRN 15.000, Series B FRN 14.000, Series B FRN 13.000, Series B FRN 12.000, Series B FRN 11.000 and Series B FRN 10.000. A specially crafted packet can cause a major error, resulting in a denial of service. An attacker can send a malicious packet to trigger this vulnerability.

An Improper Input Validation issue was discovered in Rockwell Automation FactoryTalk Alarms and Events, Version 2.90 and earlier. An unauthenticated attacker with remote access to a network with FactoryTalk Alarms and Events can send a specially crafted set of packets packet to Port 403/TCP (the history archiver service), causing the service to either stall or terminate.

Stack-based buffer overflow on Rockwell Automation Allen-Bradley MicroLogix 1100 devices A through 15.000 and B before 15.002 allows remote attackers to execute arbitrary code via a crafted web request.

A memory abuse issue exists in the Rockwell Automation Arena® Simulation. A custom file can force Arena Simulation to read and write past the end of memory space. Successful use requires user action, such as opening a bad file or webpage. If used, a threat actor could execute code or disclose information.

A memory abuse issue exists in the Rockwell Automation Arena® Simulation. A custom file can force Arena Simulation to read and write past the end of memory space. Successful use requires user action, such as opening a bad file or webpage. If used, a threat actor could execute code or disclose information.

A heap-based memory buffer overflow vulnerability in Rockwell Automation Arena Simulation software could potentially allow a malicious user to insert unauthorized code into the software by overstepping the memory boundaries, which triggers an access violation. Once inside, the threat actor can run harmful code on the system. This affects the confidentiality, integrity, and availability of the product. To trigger this, the user would unwittingly need to open a malicious file shared by the threat actor.

A denial-of-service vulnerability exists in specific Rockwell Automation ControlLogix ang GuardLogix controllers. If exploited, the product could potentially experience a major nonrecoverable fault (MNRF). The device will restart itself to recover from the MNRF.

Rockwell Automation RSLinx Classic Versions 4.00.01 and prior. This vulnerability may allow a remote threat actor to intentionally send a malformed CIP packet to Port 44818, causing the software application to stop responding and crash. This vulnerability also has the potential to exploit a buffer overflow condition, which may allow the threat actor to remotely execute arbitrary code.

Stack-based buffer overflow in OPCTest.exe in Rockwell Automation RSLinx Classic before 3.73.00 allows remote attackers to execute arbitrary code via a crafted CSV file.

Products that use EDS Subsystem: Version 28.0.1 and prior (FactoryTalk Linx software (Previously called RSLinx Enterprise): Versions 6.00, 6.10, and 6.11, RSLinx Classic: Version 4.11.00 and prior, RSNetWorx software: Version 28.00.00 and prior, Studio 5000 Logix Designer software: Version 32 and prior) is vulnerable. A memory corruption vulnerability exists in the algorithm that matches square brackets in the EDS subsystem. This may allow an attacker to craft specialized EDS files to crash the EDSParser COM object, leading to denial-of-service conditions.

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.

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.

Buffer overflow in LogReceiver.exe in Rockwell Automation RSLinx Enterprise CPR9, CPR9-SR1, CPR9-SR2, CPR9-SR3, CPR9-SR4, CPR9-SR5, CPR9-SR5.1, and CPR9-SR6 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via a UDP packet with a certain integer length value that is (1) too large or (2) too small, leading to improper handling by Logger.dll.

A denial-of-service vulnerability exists in the Rockwell Automation ThinManager. The software fails to adequately verify the outcome of memory allocation while processing Type 18 messages. If exploited, a threat actor could cause a denial-of-service on the target software.

KEPServerEX is vulnerable to a buffer overflow which may allow an attacker to crash the product being accessed or leak information.

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Kepware KEPServerEX 6.11.718.0. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of text encoding conversions. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-16486.

The device does not properly validate the data being sent to the buffer. An attacker can send a malformed CIP packet to Port 2222/TCP, Port 2222/UDP, Port 44818/TCP, or Port 44818/UDP, which creates a buffer overflow and causes the NIC to crash. Successful exploitation of this vulnerability could cause loss of availability and a disruption in communications with other connected devices. Rockwell Automation EtherNet/IP products; 1756-ENBT, 1756-EWEB, 1768-ENBT, and 1768-EWEB communication modules; CompactLogix L32E and L35E controllers; 1788-ENBT FLEXLogix adapter; 1794-AENTR FLEX I/O EtherNet/IP adapter; ControlLogix 18 and earlier; CompactLogix 18 and earlier; GuardLogix 18 and earlier; SoftLogix 18 and earlier; CompactLogix controllers 19 and earlier; SoftLogix controllers 19 and earlier; ControlLogix controllers 20 and earlier; GuardLogix controllers 20 and earlier; and MicroLogix 1100 and 1400

A heap overflow vulnerability exists within FactoryTalk Linx Version 6.11 and prior. This vulnerability could allow a remote, unauthenticated attacker to send malicious set attribute requests, which could result in the leaking of sensitive information. This information disclosure could lead to the bypass of address space layout randomization (ASLR).

A heap overflow vulnerability exists within FactoryTalk Linx Version 6.11 and prior. This vulnerability could allow a remote, unauthenticated attacker to send malicious port ranges, which could result in remote code execution.

In all versions of FactoryTalk View SE, after bypassing memory corruption mechanisms found in the operating system, a local, authenticated attacker may corrupt the associated memory space allowing for arbitrary code execution. Rockwell Automation recommends applying patch 1126290. Before installing this patch, the patch rollup dated 06 Apr 2020 or later MUST be applied. 1066644 – Patch Roll-up for CPR9 SRx.

A Buffer Overflow issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1400 Controllers, Series B and C Versions 21.002 and earlier. The stack-based buffer overflow vulnerability has been identified, which may allow remote code execution.

Buffer overflow in RSEds.dll in RSHWare.exe in the EDS Hardware Installation Tool 1.0.5.1 and earlier in Rockwell Automation RSLinx Classic before 2.58 allows user-assisted remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a malformed .eds file.

Buffer overflow in Rockwell Automation RSLogix Micro Starter Lite, RSLogix Micro Developer, RSLogix 500 Starter Edition, RSLogix 500 Standard Edition, and RSLogix 500 Professional Edition allows remote attackers to execute arbitrary code via a crafted RSS project file.