Vulnerability Details : CVE-2019-20634
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.
Products affected by CVE-2019-20634
- cpe:2.3:a:proofpoint:email_protection:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-20634
0.24%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 62 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-20634
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:N/A:N |
8.6
|
2.9
|
NIST | |
|
3.7
|
LOW | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
2.2
|
1.4
|
MITRE | 2024-08-19 |
|
3.7
|
LOW | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
2.2
|
1.4
|
NIST |
CWE ids for CVE-2019-20634
-
The product compares two entities in a security-relevant context, but the comparison is incorrect, which may lead to resultant weaknesses.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-20634
-
https://github.com/moohax/Proof-Pudding
GitHub - moohax/Proof-Pudding: Copy cat model for ProofpointThird Party Advisory
-
https://www.proofpoint.com/us/security/CVE-2019-20634
CVE-2019-20634 | Proofpoint USVendor Advisory
-
https://github.com/moohax/Talks/blob/master/slides/DerbyCon19.pdf
Talks/DerbyCon19.pdf at master · moohax/Talks · GitHubThird Party Advisory
-
https://www.proofpoint.com/us/security/security-advisories/pfpt-sn-2020-0001
PFPT-SN-2020-0001 | Proofpoint USVendor Advisory
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