Cisco IOS XE Software mDNS Gateway DoS

high Nessus Plugin ID 82573
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Synopsis

The remote device is missing a vendor-supplied security patch.

Description

The remote Cisco device is running a version of Cisco IOS XE software that is affected by a vulnerability in the multicast DNS gateway component due to improper validation of mDNS packets. A remote, unauthenticated attacker, by sending crafted packets to UDP port 5353, can exploit this to cause a device reload, leading to a denial of service.

Solution

Apply the relevant patch referenced in Cisco bug ID CSCup70579.

See Also

https://tools.cisco.com/bugsearch/bug/CSCup70579

http://www.nessus.org/u?7a10c73d

https://tools.cisco.com/security/center/viewAlert.x?alertId=37820

Plugin Details

Severity: High

ID: 82573

File Name: cisco-sa-20150325-mdns-iosxe.nasl

Version: 1.15

Type: local

Family: CISCO

Published: 4/3/2015

Updated: 11/22/2019

Dependencies: cisco_ios_xe_version.nasl

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:ios_xe

Required KB Items: Host/Cisco/IOS-XE/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 3/31/2015

Vulnerability Publication Date: 3/25/2015

Reference Information

CVE: CVE-2015-0650

BID: 73335

CISCO-BUG-ID: CSCup70579

CISCO-SA: cisco-sa-20150325-mdns