Cisco ASA IKEv1 ISAKMP Packet Handling DoS (cisco-sa-20151021-asa-ike)

high Nessus Plugin ID 93531
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The remote device is missing a vendor-supplied security patch.


According to its version and configuration, the remote Cisco Adaptive Security Appliance (ASA) device is affected by a denial of service vulnerability due to improper handling of Internet Security Association and Key Management Protocol (ISAKMP) packets. An unauthenticated, remote attacker can exploit this, via specially crafted ISAKMP packets, to cause the device to reload.


Apply the relevant patch referenced in Cisco bug ID CSCus94026.

See Also

Plugin Details

Severity: High

ID: 93531

File Name: cisco-sa-20151021-asa-ike.nasl

Version: 1.6

Type: local

Family: CISCO

Published: 9/15/2016

Updated: 11/14/2019

Dependencies: ssh_get_info.nasl

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

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


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3: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: 10/21/2015

Vulnerability Publication Date: 10/21/2015

Reference Information

CVE: CVE-2015-6327

BID: 77262


CISCO-SA: cisco-sa-20151021-asa-ike