CVE-2019-1886
CVSS V2 Medium 5
CVSS V3 High 8.6
Description
A vulnerability in the HTTPS decryption feature of Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient validation of Secure Sockets Layer (SSL) server certificates. An attacker could exploit this vulnerability by installing a malformed certificate in a web server and sending a request to it through the Cisco WSA. A successful exploit could allow the attacker to cause an unexpected restart of the proxy process on an affected device.
Overview
- CVE ID
- CVE-2019-1886
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Analyzed
- Published Version
- 2019-07-04T20:15:11
- Last Modified Date
- 2020-10-16T15:08:42
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:* | 1 | OR | 10.5 | 10.5.5-005 |
| cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:* | 1 | OR | 11.5 | 11.5.2-020 |
| cpe:2.3:a:cisco:web_security_appliance:10.5.2-072:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:web_security_appliance:10.5.3-025:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:web_security_appliance:11.7.0-fcs-334:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/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-20190703-wsa-dos | Vendor Advisory |
| http://www.securityfocus.com/bid/109049 | Third Party Advisory VDB Entry |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-1886 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1886 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:07:30 | Added to TrackCVE | |||
| 2022-12-03 22:54:36 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-03 22:54:36 | 2019-07-04T20:15Z | 2019-07-04T20:15:11 | CVE Published Date | updated |
| 2022-12-03 22:54:36 | 2020-10-16T15:08:42 | CVE Modified Date | updated | |
| 2022-12-03 22:54:36 | Analyzed | Vulnerability Status | updated |