CVE-2018-0447
CVSS V2 Medium 5
CVSS V3 Medium 5.3
Description
A vulnerability in the anti-spam protection mechanisms of Cisco AsyncOS Software for the Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass certain content filters on an affected device. The vulnerability is due to incomplete input and validation checking mechanisms for certain Sender Policy Framework (SPF) messages that are sent to an affected device. An attacker could exploit this vulnerability by sending a customized SPF packet to an affected device. If successful, an exploit could allow the attacker to bypass the URL filters that are configured for the affected device, which could allow malicious URLs to pass through the device.
Overview
- CVE ID
- CVE-2018-0447
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Modified
- Published Version
- 2018-10-05T14:29:02
- Last Modified Date
- 2019-10-09T23:32:06
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:cisco:email_security_appliance:-:*:*:*:*:*:*:* | 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:U/C:N/I:L/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 5.3
- 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-20180905-esa-url-bypass | Vendor Advisory |
| http://www.securitytracker.com/id/1041687 | Third Party Advisory VDB Entry |
| http://www.securityfocus.com/bid/105300 | Third Party Advisory VDB Entry |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-0447 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0447 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:07:03 | Added to TrackCVE | |||
| 2022-12-03 12:54:36 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-03 12:54:36 | 2018-10-05T14:29Z | 2018-10-05T14:29:02 | CVE Published Date | updated |
| 2022-12-03 12:54:36 | 2019-10-09T23:32:06 | CVE Modified Date | updated | |
| 2022-12-03 12:54:36 | Modified | Vulnerability Status | updated |