Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2021-39164 | First vendor Publication | 2021-08-31 |
| Vendor | Cve | Last vendor Modification | 2023-11-07 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N | |||
|---|---|---|---|
| Overall CVSS Score | 3.1 | ||
| Base Score | 3.1 | Environmental Score | 3.1 |
| impact SubScore | 1.4 | Temporal Score | 3.1 |
| Exploitabality Sub Score | 1.6 | ||
| Attack Vector | Network | Attack Complexity | High |
| Privileges Required | Low | User Interaction | None |
| Scope | Unchanged | Confidentiality Impact | Low |
| Integrity Impact | None | Availability Impact | None |
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:M/Au:S/C:P/I:N/A:N) | |||
|---|---|---|---|
| Cvss Base Score | 3.5 | Attack Range | Network |
| Cvss Impact Score | 2.9 | Attack Complexity | Medium |
| Cvss Expoit Score | 6.8 | Authentication | Requires single instance |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the membership (list of members, with their display names) of a room if they know the ID of the room. The vulnerability is limited to rooms with `shared` history visibility. Furthermore, the unauthorised user must be using an account on a vulnerable homeserver that is in the room. Server administrators should upgrade to 1.41.1 or later in order to receive the patch. One workaround is available. Administrators of servers that use a reverse proxy could, with potentially unacceptable loss of functionality, block the endpoints: `/_matrix/client/r0/rooms/{room_id}/members` with `at` query parameter, and `/_matrix/client/unstable/rooms/{room_id}/members` with `at` query parameter. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39164 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-200 | Information Exposure |
CPE : Common Platform Enumeration
| Type | Description | Count |
|---|---|---|
| Application | 1 | |
| Os | 2 |
Sources (Detail)
Alert History
| Date | Informations |
|---|---|
| 2023-11-07 21:34:08 |
|
| 2022-10-26 00:27:41 |
|
| 2021-12-17 00:23:11 |
|
| 2021-09-25 05:23:07 |
|
| 2021-09-09 09:22:59 |
|
| 2021-09-08 21:23:34 |
|
| 2021-08-31 21:23:10 |
|
