CVE-2017-12235

HIGHCISA KEV

7.5

Description

A vulnerability in the implementation of the PROFINET Discovery and Configuration Protocol (PN-DCP) for Cisco IOS 12.2 through 15.6 could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to the improper parsing of ingress PN-DCP Identify Request packets destined to an affected device. An attacker could exploit this vulnerability by sending a crafted PN-DCP Identify Request packet to an affected device and then continuing to send normal PN-DCP Identify Request packets to the device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. This vulnerability affects Cisco devices that are configured to process PROFINET messages. Beginning with Cisco IOS Software Release 12.2(52)SE, PROFINET is enabled by default on all the base switch module and expansion-unit Ethernet ports. Cisco Bug IDs: CSCuz47179.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published9/29/2017

Last Modified4/21/2026

Sourcekev

Honeypot Sightings0

CISA KEV

VendorCisco

ProductIOS software

Vulnerability NameCisco IOS Software for Cisco Industrial Ethernet Switches PROFINET Denial-of-Service Vulnerability

KEV Date Added2022-03-03

Remediation Due Date2022-03-24

Ransomware UseUnknown

Affected Products

cisco:industrial_ethernet_2000_16ptc-g-e_switchcisco:industrial_ethernet_2000_16ptc-g-l_switchcisco:industrial_ethernet_2000_16ptc-g-nx_switchcisco:industrial_ethernet_2000_16t67-b_switchcisco:industrial_ethernet_2000_16t67p-g-e_switchcisco:industrial_ethernet_2000_16tc-g-e_switchcisco:industrial_ethernet_2000_16tc-g-l_switchcisco:industrial_ethernet_2000_16tc-g-n_switchcisco:industrial_ethernet_2000_16tc-g-x_switchcisco:industrial_ethernet_2000_16tc-l_switchcisco:industrial_ethernet_2000_24t67-b_switchcisco:industrial_ethernet_2000_4s-ts-g-b_switchcisco:industrial_ethernet_2000_4s-ts-g-l_switchcisco:industrial_ethernet_2000_4t-b_switchcisco:industrial_ethernet_2000_4t-g-b_switchcisco:industrial_ethernet_2000_4t-g-l_switchcisco:industrial_ethernet_2000_4t-l_switchcisco:industrial_ethernet_2000_4ts-b_switchcisco:industrial_ethernet_2000_4ts-g-b_switchcisco:industrial_ethernet_2000_4ts-g-l_switchcisco:industrial_ethernet_2000_4ts-l_switchcisco:industrial_ethernet_2000_8t67-b_switchcisco:industrial_ethernet_2000_8t67p-g-e_switchcisco:industrial_ethernet_2000_8tc-b_switchcisco:industrial_ethernet_2000_8tc-g-b_switchcisco:industrial_ethernet_2000_8tc-g-e_switchcisco:industrial_ethernet_2000_8tc-g-l_switchcisco:industrial_ethernet_2000_8tc-g-n_switchcisco:industrial_ethernet_2000_8tc-l_switchcisco:industrial_ethernet_2000_series_firmwarecisco:ios

Weaknesses (CWE)

CWE-20

References

http://www.securityfocus.com/bid/101043(psirt@cisco.com)

http://www.securitytracker.com/id/1039451(psirt@cisco.com)

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-profinet(psirt@cisco.com)

http://www.securityfocus.com/bid/101043(af854a3a-2127-422b-91ae-364da2661108)

http://www.securitytracker.com/id/1039451(af854a3a-2127-422b-91ae-364da2661108)

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-profinet(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-12235(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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