Port 502 Details
known port assignments and vulnerabilities
3 records found
||Phoenix Contact FL IL 24 BK-PAC allows remote attackers to cause a denial of service (hang) via unspecified manipulations as demonstrated by a Nessus scan or (2) malformed input to TCP port 502.
The modbus_125_handler function in the Schneider Electric Quantum Ethernet Module on the NOE 771 device (aka the Quantum 140NOE771* module) allows remote attackers to install arbitrary firmware updates via a MODBUS 125 function code to TCP port 502.
Unspecified vulnerability in the Modbus/TCP Diagnostic function in MiniHMI.exe for the Automated Solutions Modbus Slave ActiveX Control before 1.5 allows remote attackers to corrupt the heap and possibly execute arbitrary code via malformed Modbus requests to TCP port 502.
References: [CVE-2007-4827] [BID-25713] [OSVDB-38259]
Triangle Research International (aka Tri) Nano-10 PLC devices with firmware before r81 use an incorrect algorithm for bounds checking of data in Modbus/TCP packets, which allows remote attackers to cause a denial of service (networking outage) via a crafted packet to TCP port 502.
Triangle Research International (aka Tri) Nano-10 PLC devices with firmware r81 and earlier do not properly handle large length values in MODBUS data, which allows remote attackers to cause a denial of service (transition to the interrupt state) via a crafted packet to TCP port 502.
References: [CVE-2013-5741], [OSVDB-97728], [SECUNIA-55782]
Schneider Electric Modicon TM221CE16R 220.127.116.11 devices allow remote attackers to discover the application-protection password via a \x00\x01\x00\x00\x00\x05\x01\x5a\x00\x03\x00 request to the Modbus port (502/tcp). Subsequently the application may be arbitrarily downloaded, modified, and uploaded.
References: [CVE-2017-7575], [BID-97523]
asa-appl-proto (IANA official)
||Modbus, Protocol (unofficial)
||Modbus Application Protocol, modified: 2014-06-10
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SANS Internet Storm Center: port 502
Well Known Ports: 0 through 1023.
Registered Ports: 1024 through 49151.
Dynamic/Private : 49152 through 65535.
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