CVE-2019-1672
CVSS V2 Medium 5
CVSS V3 Medium 5.8
Description
A vulnerability in the Decryption Policy Default Action functionality of the Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to bypass a configured drop policy and allow traffic onto the network that should have been denied. The vulnerability is due to the incorrect handling of SSL-encrypted traffic when Decrypt for End-User Notification is disabled in the configuration. An attacker could exploit this vulnerability by sending a SSL connection through the affected device. A successful exploit could allow the attacker to bypass a configured drop policy to block specific SSL connections. Releases 10.1.x and 10.5.x are affected.
Overview
- CVE ID
- CVE-2019-1672
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Modified
- Published Version
- 2019-02-08T18:29:00
- Last Modified Date
- 2019-10-09T23:47:41
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:cisco:web_security_appliance:10.1.0-204:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:web_security_appliance:10.5.2-072:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:cisco:web_security_appliance:11.5.1-fcs-115:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 5.8
- Base Severity
- MEDIUM
- Exploitability Score
- 3.9
- Impact Score
- 1.4
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190206-wsa-bypass | Third Party Advisory |
| http://www.securityfocus.com/bid/106904 | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-1672 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1672 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:03:05 | Added to TrackCVE | |||
| 2022-12-03 17:15:56 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-03 17:15:56 | 2019-02-08T18:29Z | 2019-02-08T18:29:00 | CVE Published Date | updated |
| 2022-12-03 17:15:56 | 2019-10-09T23:47:41 | CVE Modified Date | updated | |
| 2022-12-03 17:15:56 | Modified | Vulnerability Status | updated |