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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.cisco:def:1298
[Rus]
Version
1
Class
vulnerability
ALTXid
154278
Language
English
Severity
High
Title
Cisco IOS and IOS XE Software DNS Forwarder Denial of Service Vulnerability (CVE-2016-6380)
Description
A vulnerability in the DNS forwarder functionality of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause the device to reload, corrupt the information present in the device's local DNS cache, or read part of the process memory.
The vulnerability is due to a flaw in handling crafted DNS response messages. An attacker could exploit this vulnerability by intercepting and crafting a DNS response message to a client DNS query that was forwarded from the affected device to a DNS server. A successful exploit could cause the device to reload, resulting in a denial of service (DoS) condition or corruption of the local DNS cache information.
Family
ios
Platform
Cisco IOS
Reference
CVE: CVE-2016-6380
CVE: CVE-2016-6380
Id:
CVE-2016-6380
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6380
Comment
: The DNS forwarder in Cisco IOS 12.0 through 12.4 and 15.0 through 15.6 and IOS XE 3.1 through 3.15 allows remote attackers to obtain sensitive information from process memory or cause a denial of service (data corruption or device reload) via a crafted DNS response, aka Bug ID CSCup90532.
CVSSv2 Score:
8.3
Access vector:
NETWORK
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
COMPLETE
CVSSv2 Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:C
CVSSv3 Score:
8.1
Attack vector:
NETWORK
Attack complexity:
HIGH
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE:
20 (Improper Input Validation)
References:
20160928 Cisco IOS and IOS XE Software DNS Forwarder Denial of Service Vulnerability (CISCO)
93201 (BID)
https://ics-cert.us-cert.gov/advisories/ICSA-16-287-04 (MISC)
1036914 (SECTRACK)
Vendor Advisory: cisco-sa-20160928-dns
Vendor Advisory: cisco-sa-20160928-dns
Id:
cisco-sa-20160928-dns
Reference:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160928-dns
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