CVE-2019-20634
CVSS V2 Medium 4.3
CVSS V3 Low 3.7
Description
An issue was discovered in Proofpoint Email Protection through 2019-09-08. By collecting scores from Proofpoint email headers, it is possible to build a copy-cat Machine Learning Classification model and extract insights from this model. The insights gathered allow an attacker to craft emails that receive preferable scores, with a goal of delivering malicious emails.
Overview
- CVE ID
- CVE-2019-20634
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2020-03-30T21:15:12
- Last Modified Date
- 2022-04-27T16:40:35
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:proofpoint:email_protection:*:*:*:*:*:*:*:* | 1 | OR | 2019-09-08 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- LOW
- Availability Impact
- NONE
- Base Score
- 3.7
- Base Severity
- LOW
- Exploitability Score
- 2.2
- Impact Score
- 1.4
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/moohax/Talks/blob/master/slides/DerbyCon19.pdf | Third Party Advisory |
| https://github.com/moohax/Proof-Pudding | Third Party Advisory |
| https://www.proofpoint.com/us/security/CVE-2019-20634 | Vendor Advisory |
| https://www.proofpoint.com/us/security/security-advisories/pfpt-sn-2020-0001 | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-20634 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20634 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:26:00 | Added to TrackCVE | |||
| 2022-12-04 13:42:01 | 2020-03-30T21:15Z | 2020-03-30T21:15:12 | CVE Published Date | updated |
| 2022-12-04 13:42:01 | 2022-04-27T16:40:35 | CVE Modified Date | updated | |
| 2022-12-04 13:42:01 | Analyzed | Vulnerability Status | updated |