CVE-2019-1955
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
A vulnerability in the Sender Policy Framework (SPF) functionality of Cisco AsyncOS Software for Cisco Email Security Appliances (ESA) could allow an unauthenticated, remote attacker to bypass configured user filters on the device. The vulnerability is due to incomplete input and validation checking mechanisms for certain 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. A successful exploit could allow the attacker to bypass the header filters that are configured for the affected device, which could allow malicious content to pass through the device.
Overview
- CVE ID
- CVE-2019-1955
- Assigner
- ykramarz@cisco.com
- Vulnerability Status
- Analyzed
- Published Version
- 2019-08-08T08:15:12
- Last Modified Date
- 2023-03-29T16:25:09
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:cisco:email_security_appliance_firmware:*:*:*:*:*:*:*:* | 1 | OR | 4.0mr1 | |
| cpe:2.3:o:cisco:email_security_appliance_firmware:12.0:*:*:*:*:*:*:* | 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:H/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190807-esm-inject | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-1955 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1955 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:02:51 | Added to TrackCVE | |||
| 2022-12-04 00:49:46 | psirt@cisco.com | ykramarz@cisco.com | CVE Assigner | updated |
| 2022-12-04 00:49:46 | 2019-08-08T08:15Z | 2019-08-08T08:15:12 | CVE Published Date | updated |
| 2022-12-04 00:49:46 | 2019-10-09T23:48:39 | CVE Modified Date | updated | |
| 2022-12-04 00:49:47 | Modified | Vulnerability Status | updated | |
| 2022-12-31 00:10:44 | Modified | Undergoing Analysis | Vulnerability Status | updated |
| 2023-03-31 06:10:03 | 2023-03-29T16:25:09 | CVE Modified Date | updated | |
| 2023-03-31 06:10:03 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |