Cisco ASA Software IPsec Packet Handling DoS (cisco-sa-20170419-asa-ipsec)

Medium Nessus Plugin ID 99666


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


According to its self-reported version and configuration, the Cisco Adaptive Security Appliance (ASA) software running on the remote device is affected by a denial of service vulnerability in the IPsec code due to improper parsing of malformed IPsec packets. An authenticated, remote attacker can exploit this, via specially crafted IPsec packets, to cause the device to reload.


Upgrade to the relevant fixed version referenced in Cisco security advisory cisco-sa-20170419-asa-ipsec.

See Also

Plugin Details

Severity: Medium

ID: 99666

File Name: cisco-sa-20170419-asa-ipsec.nasl

Version: 1.6

Type: local

Family: CISCO

Published: 2017/04/25

Updated: 2019/11/13

Dependencies: 11936, 12634

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2017-6609

CVSS v2.0

Base Score: 6.8

Temporal Score: 5

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

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

CVSS v3.0

Base Score: 7.7

Temporal Score: 6.7

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

Temporal Vector: CVSS:3.0/E:U/RL:O/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: 2017/04/19

Vulnerability Publication Date: 2017/04/19

Reference Information

CVE: CVE-2017-6609

BID: 97936