Executive Summary

Summary
Title Cisco IOS Software DHCP Denial of Service Vulnerability
Informations
Name cisco-sa-20130925-dhcp First vendor Publication 2013-09-25
Vendor Cisco Last vendor Modification 2013-09-25
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 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 occurs during the parsing of crafted DHCP packets. An attacker could exploit this vulnerability by sending crafted DHCP packets to an affected device that has the DHCP server or DHCP relay feature enabled. An exploit could allow the attacker to cause a reload of an affected device.

Cisco has released free software updates that address this vulnerability. There are no workarounds to this vulnerability.

This advisory is available at the following link: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130925-dhcp

Note: The September 25, 2013, Cisco IOS Software Security Advisory bundled publication includes eight Cisco Security Advisories. All advisories address vulnerabilities in Cisco IOS Software. Each Cisco IOS Software Security Advisory lists the Cisco IOS Software releases that correct the vulnerability or vulnerabilities detailed in the advisory as well as the Cisco IOS Software releases that correct all Cisco IOS Software vulnerabilities in the September 2013 bundled publication.

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_sep13.html BEGIN PGP SIGNATURE Version: GnuPG/MacGPG2 v2.0.18 (Darwin) Comment: GPGTools - http://gpgtools.org

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Original Source

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

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-20 Improper Input Validation

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 7
Os 61

Information Assurance Vulnerability Management (IAVM)

Date Description
2013-10-03 IAVM : 2013-A-0185 - Multiple Vulnerabilities in Cisco IOS XE
Severity : Category I - VMSKEY : V0040708
2013-10-03 IAVM : 2013-A-0184 - Multiple Vulnerabilities in Cisco IOS
Severity : Category I - VMSKEY : V0040709

Snort® IPS/IDS

Date Description
2017-08-15 Cisco IOS DHCP denial of service attempt
RuleID : 43573 - Revision : 2 - Type : SERVER-OTHER

Nessus® Vulnerability Scanner

Date Description
2013-10-07 Name : The remote device is missing a vendor-supplied security patch.
File : cisco-sa-20130925-dhcp-iosxe.nasl - Type : ACT_GATHER_INFO
2013-10-07 Name : The remote device is missing a vendor-supplied security patch.
File : cisco-sa-20130925-dhcp.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
3
Date Informations
2014-02-17 10:22:11
  • Multiple Updates
2013-11-11 12:37:33
  • Multiple Updates
2013-09-27 21:23:25
  • Multiple Updates
2013-09-25 21:19:12
  • First insertion