CVE-2018-15388

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN Denial of Service Vulnerability

State: Published
Severity: 8.6 High
Published: May 3, 2019
Updated: Nov 19, 2024
Reserved: Aug 17, 2018

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.

Scores

CVSS	Score	Vector	Source
3.0	8.6 High	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H	cisco

Weaknesses

CWE-400

Affected Products

Product	Versions
Cisco Adaptive Security Appliance (ASA) SoftwareCisco	before 9.4.4.34Affected before 9.6.4.25Affected before 9.8.4Affected before 9.9.2.50Affected

References

20190501 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN Denial of Service Vulnerabilityvendor-advisory

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