Junglewise Threat Intelligence

CVE-2017-12235: Cisco IOS Software for Cisco Industrial Ethernet Switches PROFINET Denial-of-Service Vulnerability

CVE-2017-12235 · Severity: critical · CVSS 7.5 · Exploited in the wild · Published 2022-03-03

Technologies: Cisco IOS, Cisco Ios Software, Cisco IOS XE. Vendors: Cisco.

Executive brief

A vulnerability in the PROFINET Discovery and Configuration Protocol (PN-DCP) implementation of Cisco IOS allows unauthenticated remote attackers to cause a denial of service. The issue stems from improper parsing of crafted PN-DCP Identify Request packets, which triggers a device reload.

Affected products

  • Cisco IOS 12.2 through 15.6

Timeline

  • 2017-09-27: disclosed: Initial vendor advisory published by Cisco
  • 2022-03-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog

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