Cisco ASA DHCPv6 Relay Function DHCP Packet Handling DoS (CSCur45455)

Medium Nessus Plugin ID 86675

Synopsis

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

Description

The remote Cisco Adaptive Security Appliance (ASA) device is affected by a denial of service vulnerability due to improper validation of DHCPv6 packets by the DHCPv6 relay function. An unauthenticated, remote attacker can exploit this, via specially crafted DHCPv6 packets, to cause a device reload.

Solution

Apply the relevant patch referenced in Cisco bug ID CSCur45455.
Alternatively, disable the DHCPv6 relay feature.

See Also

http://www.nessus.org/u?f150f84a

Plugin Details

Severity: Medium

ID: 86675

File Name: cisco-sa-20150115-asa-dhcp.nasl

Version: 1.11

Type: local

Family: CISCO

Published: 2015/11/01

Updated: 2019/11/20

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2015-0578

CVSS v2.0

Base Score: 5.7

Temporal Score: 4.2

Vector: CVSS2#AV:A/AC:M/Au:N/C:N/I:N/A:C

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/a:cisco:adaptive_security_appliance_software

Required KB Items: Host/Cisco/ASA, Host/Cisco/ASA/model

Exploit Ease: No known exploits are available

Patch Publication Date: 2015/10/21

Vulnerability Publication Date: 2015/01/15

Reference Information

CVE: CVE-2015-0578

BID: 72718

CISCO-BUG-ID: CSCur45455

CISCO-SA: cisco-sa-20150115-asa-dhcp