CVE-2018-15388
CVSS V2 High 7.8
CVSS V3 High 8.6
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.
Overview
- CVE ID
- CVE-2018-15388
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Modified
- Published Version
- 2019-05-03T15:29:00
- Last Modified Date
- 2019-10-09T23:35:30
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* | 1 | OR | 9.4.4.34 | |
| cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* | 1 | OR | 9.5 | 9.6.4.25 |
| cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* | 1 | OR | 9.7 | 9.8.4 |
| cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* | 1 | OR | 9.9 | 9.9.2.50 |
| cpe:2.3:h:cisco:asa_5505:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asa_5510:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asa_5520:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asa_5540:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asa_5550:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asa_5580:-:*:*:*:*:*:*:* | 0 | OR | ||
| cpe:2.3:h:cisco:asa_5585-x:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | 1 | OR | 6.2.3.12 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:N/A:C
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- COMPLETE
- Base Score
- 7.8
- Severity
- HIGH
- Exploitability Score
- 10
- Impact Score
- 6.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 8.6
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 4
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-sd-cpu-dos | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-15388 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15388 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:06:14 | Added to TrackCVE | |||
| 2022-12-03 20:19:23 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-03 20:19:23 | 2019-05-03T15:29Z | 2019-05-03T15:29:00 | CVE Published Date | updated |
| 2022-12-03 20:19:23 | 2019-10-09T23:35:30 | CVE Modified Date | updated | |
| 2022-12-03 20:19:23 | Modified | Vulnerability Status | updated |