—–BEGIN PGP SIGNED MESSAGE—–
Hash: SHA1
Cisco Security Advisory: Cisco IOS Software for Cisco Industrial Ethernet Switches PROFINET Denial of Service Vulnerability
Advisory ID: cisco-sa-20170927-profinet
Revision: 1.0
For Public Release: 2017 September 27 16:00 GMT
Last Updated: 2017 September 27 16:00 GMT
CVE ID(s): CVE-2017-12235
CVSS Score v(3): 8.6 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
+———————————————————————
Summary
=======
A vulnerability in the implementation of the PROFINET Discovery and Configuration Protocol (PN-DCP) for Cisco IOS Software 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.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-profinet [“https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-profinet”]
This advisory is part of the September 27, 2017, release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication, which includes 12 Cisco Security Advisories that describe 13 vulnerabilities. For a complete list of the advisories and links to them, see Cisco Event Response: September 2017 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication [“https://tools.cisco.com/security/center/viewErp.x?alertId=ERP-63410”].
—–BEGIN PGP SIGNATURE—–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=maIe
—–END PGP SIGNATURE—–
_______________________________________________
cust-security-announce mailing list
cust-security-announce@cisco.com
To unsubscribe, send the command “unsubscribe” in the subject of your message to cust-security-announce-leave@cisco.com
