CVE-2018-15388

Description

A vulnerability in the WebVPN login process of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause increased CPU utilization on an affected device. The vulnerability is due to excessive processing load for existing WebVPN login operations. An attacker could exploit this vulnerability by sending multiple WebVPN login requests to the device. A successful exploit could allow the attacker to increase CPU load on the device, resulting in a denial of service (DoS) condition.

CvssV3 impact

BaseSeverity

HIGH

ConfidentialityImpact

NONE

AttackComplexity

LOW

Scope

CHANGED

AttackVector

NETWORK

AvailabilityImpact

HIGH

IntegrityImpact

NONE

PrivilegesRequired

NONE

BaseScore

8.6

VectorString

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

Version

3.0

UserInteraction

NONE

CvssV2 impact

Version

2.0

VectorString

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

AccessVector

NETWORK

AccessComplexity

LOW

Authentication

NONE

ConfidentialityImpact

NONE

IntegrityImpact

NONE

AvailabilityImpact

COMPLETE

BaseScore

7.800000190734863