Vulnerability Spotlight: Denial-of-service vulnerabilities in Allen-Bradley Flex I/O

Jared Rittle of Cisco Talos discovered these vulnerabilities. Blog by Jon Munshaw.
The Allen-Bradley Flex input/output system contains multiple denial-of-service vulnerabilities in its ENIP request path data segment. These bugs exist specifically in the 1794-AENT FLEX I/O modular platform. It provides many I/O operations and servers as a smaller physical device compared to other similar hardware. An attacker could exploit these vulnerabilities by sending a specially crafted, malicious packet to…

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