Executive Summary

Summary
Title Cisco IOS Software DHCP Version 6 Denial of Service Vulnerability
Informations
Name cisco-sa-20140924-dhcpv6 First vendor Publication 2014-09-24
Vendor Cisco Last vendor Modification 2014-09-24
Severity (Vendor) N/A Revision 1.0

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.8 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A vulnerability in the DHCP version 6 (DHCPv6) server implementation of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.

The vulnerability is due to improper parsing of malformed DHCPv6 packets. An attacker could exploit this vulnerability by sending malformed DHCPv6 packets to be processed by an affected device. An exploit could allow the attacker to cause a memory leak and eventual reload of an affected device.

Cisco has released free software updates that address this vulnerability. This advisory is available at the following link: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140924-dhcpv6

Note: The September 24, 2014, Cisco IOS Software Security Advisory bundled publication includes six Cisco Security Advisories. All advisories address vulnerabilities in Cisco IOS Software. Individual publication links are in Cisco Event Response: Semiannual Cisco IOS Software Security Advisory Bundled Publication at the following link:

http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_sep14.html

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Original Source

Url : http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco (...)

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-399 Resource Management Errors

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 4
Os 30

Snort® IPS/IDS

Date Description
2014-11-16 DHCPv6 flood denial of service attempt
RuleID : 31983 - Revision : 2 - Type : OS-OTHER

Nessus® Vulnerability Scanner

Date Description
2014-10-02 Name : The remote device is missing a vendor-supplied security patch.
File : cisco-sa-20140924-dhcpv6-iosxe.nasl - Type : ACT_GATHER_INFO
2014-10-02 Name : The remote device is missing a vendor-supplied security patch.
File : cisco-sa-20140924-dhcpv6.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
Date Informations
2014-10-03 13:27:15
  • Multiple Updates
2014-09-26 00:27:25
  • Multiple Updates
2014-09-24 21:23:04
  • First insertion