Cisco ASA Software IKEv1 XAUTH Parameter Handling Remote DoS (cisco-sa-20170419-asa-xauth)

Medium Nessus Plugin ID 99668

Synopsis

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

Description

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 Internet Key Exchange Version 1 (IKEv1) XAUTH code due to improper validation of the IKEv1 XAUTH parameters passed during an IKEv1 negotiation. An authenticated, remote attacker can exploit this, via specially crafted parameters, to cause the device to reload.

Solution

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

See Also

http://www.nessus.org/u?e6b8b6cb

Plugin Details

Severity: Medium

ID: 99668

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

Version: 1.8

Type: local

Family: CISCO

Published: 2017/04/25

Updated: 2019/11/13

Dependencies: 11936, 12634

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2017-6610

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-2017-6610

BID: 97934