Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2020-15133 | First vendor Publication | 2020-07-31 |
| Vendor | Cve | Last vendor Modification | 2021-11-18 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N | |||
|---|---|---|---|
| Overall CVSS Score | 8.7 | ||
| Base Score | 8.7 | Environmental Score | 8.7 |
| impact SubScore | 5.8 | Temporal Score | 8.7 |
| Exploitabality Sub Score | 2.2 | ||
| Attack Vector | Network | Attack Complexity | High |
| Privileges Required | None | User Interaction | None |
| Scope | Changed | Confidentiality Impact | High |
| Integrity Impact | High | Availability Impact | None |
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:M/Au:N/C:P/I:P/A:N) | |||
|---|---|---|---|
| Cvss Base Score | 5.8 | Attack Range | Network |
| Cvss Impact Score | 4.9 | Attack Complexity | Medium |
| Cvss Expoit Score | 8.6 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| In faye-websocket before version 0.11.0, there is a lack of certification validation in TLS handshakes. The `Faye::WebSocket::Client` class uses the `EM::Connection#start_tls` method in EventMachine to implement the TLS handshake whenever a `wss:` URL is used for the connection. This method does not implement certificate verification by default, meaning that it does not check that the server presents a valid and trusted TLS certificate for the expected hostname. That means that any `wss:` connection made using this library is vulnerable to a man-in-the-middle attack, since it does not confirm the identity of the server it is connected to. For further background information on this issue, please see the referenced GitHub Advisory. Upgrading `faye-websocket` to v0.11.0 is recommended. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15133 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-295 | Certificate Issues |
CPE : Common Platform Enumeration
| Type | Description | Count |
|---|---|---|
| Application | 1 |
Sources (Detail)
| Source | Url |
|---|---|
| CONFIRM | https://github.com/faye/faye-websocket-ruby/security/advisories/GHSA-2v5c-755... |
| MISC | https://blog.jcoglan.com/2020/07/31/missing-tls-verification-in-faye/ |
Alert History
| Date | Informations |
|---|---|
| 2021-11-18 21:24:23 |
|
| 2021-05-04 13:45:50 |
|
| 2021-04-22 02:57:53 |
|
| 2020-08-12 00:22:55 |
|
| 2020-08-11 21:23:14 |
|
| 2020-08-01 00:22:54 |
|
