National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-15388 Detail

Current 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.

Source:  MITRE
Description Last Modified:  05/03/2019
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 8.6 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H (V3 legend)
Impact Score: 4.0
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-sd-cpu-dos Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Uncontrolled Resource Consumption ('Resource Exhaustion') (CWE-400)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
9.4.4.34
 cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
9.5
Up to (excluding)
9.6.4.25
 cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
9.7
Up to (excluding)
9.8.4
 cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
From (including)
9.9
Up to (excluding)
9.9.2.50
Running on/with
 cpe:2.3:h:cisco:asa_5505:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:h:cisco:asa_5510:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:h:cisco:asa_5520:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:h:cisco:asa_5540:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:h:cisco:asa_5550:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:h:cisco:asa_5580:-:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:h:cisco:asa_5585-x:-:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
6.2.3.12


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-15388
NVD Published Date:
05/03/2019
NVD Last Modified:
05/07/2019