CVE-2018-0173

Cisco IOS and IOS XE Software Improper Input Validation Vulnerability

Ios

A vulnerability in the Cisco IOS Software and Cisco IOS XE Software function that restores encapsulated option 82 information in DHCP Version 4 (DHCPv4) packets could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a Relay Reply denial of service (DoS) condition. The vulnerability exists because the affected software performs incomplete input validation of encapsulated option 82 information that it receives in DHCPOFFER messages…

29. Mär 2018

Ausgewertete Quellen

• Hersteller
  https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dhcpr2
• Hinweis
  http://www.securityfocus.com/bid/103545
• Hinweis
  http://www.securitytracker.com/id/1040591
• Hinweis
  https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04
• Hinweis
  https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05
• Hinweis
  https://www.tenable.com/security/research/tra-2018-06
• CISA
  https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0173
• CISA
  Cisco IOS and IOS XE Software Improper Input Validation Vulnerability
• NVD
  CVE-2018-0173