Executive Summary

Title Cisco IOS Software and IOS XE Software Internet Key Exchange Version 2 Denial of Service Vulnerabilities
Name cisco-sa-20150325-ikev2 First vendor Publication 2015-03-25
Vendor Cisco Last vendor Modification 2015-03-25
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


Devices running Cisco IOS Software or IOS XE Software contain vulnerabilities within the Internet Key Exchange (IKE) version 2 subsystem that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.

The vulnerabilities are due to how an affected device processes certain malformed IKEv2 packets. An attacker could exploit these vulnerabilities by sending malformed IKEv2 packets to an affected device to be processed. A successful exploit could allow the attacker to cause a reload of the affected device or excessive consumption of resources that would lead to a DoS condition. IKEv2 is automatically enabled on devices running Cisco IOS and Cisco IOS XE Software when the Internet Security Association and Key Management Protocol (ISAKMP) is enabled. these vulnerabilities can be triggered only by sending malformed IKEv2 packets.

There are no workarounds for the vulnerabilities described in this advisory. Cisco has released free software updates that address these vulnerabilities.

This advisory is available at the following link: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150325-ikev2

Note: The March 25, 2015, Cisco IOS & XE Software Security Advisory bundled publication includes seven Cisco Security Advisories. The advisories address vulnerabilities in Cisco IOS Software and Cisco IOS XE Software. Individual publication links are in Cisco Event Response: Semiannual Cisco IOS & XE Software Security Advisory Bundled Publication at the following link: http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_mar15.html BEGIN PGP SIGNATURE Version: GnuPG/MacGPG2 v2.0.22 (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
50 % CWE-399 Resource Management Errors
50 % CWE-20 Improper Input Validation

CPE : Common Platform Enumeration

Os 7
Os 78

Information Assurance Vulnerability Management (IAVM)

Date Description
2015-07-30 IAVM : 2015-A-0175 - Multiple Vulnerabilities in Cisco IOS XE
Severity : Category I - VMSKEY : V0061141

Nessus® Vulnerability Scanner

Date Description
2015-04-03 Name : The remote device is missing a vendor-supplied security patch.
File : cisco-sa-20150325-ikev2-ios.nasl - Type : ACT_GATHER_INFO
2015-04-03 Name : The remote device is missing a vendor-supplied security patch.
File : cisco-sa-20150325-ikev2-iosxe.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2015-04-04 13:27:18
  • Multiple Updates
2015-03-28 00:29:18
  • Multiple Updates
2015-03-25 21:26:37
  • First insertion