Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2023-28436 | First vendor Publication | 2023-03-23 |
| Vendor | Cve | Last vendor Modification | 2023-11-07 |
Security-Database Scoring CVSS v3
| Cvss vector : CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | |||
|---|---|---|---|
| Overall CVSS Score | 8 | ||
| Base Score | 8 | Environmental Score | 8 |
| impact SubScore | 5.9 | Temporal Score | 8 |
| Exploitabality Sub Score | 2.1 | ||
| Attack Vector | Adjacent | Attack Complexity | Low |
| Privileges Required | Low | User Interaction | None |
| Scope | Unchanged | Confidentiality Impact | High |
| Integrity Impact | High | Availability Impact | High |
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : | |||
|---|---|---|---|
| Cvss Base Score | N/A | Attack Range | N/A |
| Cvss Impact Score | N/A | Attack Complexity | N/A |
| Cvss Expoit Score | N/A | Authentication | N/A |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| Tailscale is software for using Wireguard and multi-factor authentication (MFA). A vulnerability identified in the implementation of Tailscale SSH starting in version 1.34.0 and prior to prior to 1.38.2 in FreeBSD allows commands to be run with a higher privilege group ID than that specified in Tailscale SSH access rules. A difference in the behavior of the FreeBSD `setgroups` system call from POSIX meant that the Tailscale client running on a FreeBSD-based operating system did not appropriately restrict groups on the host when using Tailscale SSH. When accessing a FreeBSD host over Tailscale SSH, the egid of the tailscaled process was used instead of that of the user specified in Tailscale SSH access rules. Tailscale SSH commands may have been run with a higher privilege group ID than that specified in Tailscale SSH access rules if they met all of the following criteria: the destination node was a FreeBSD device with Tailscale SSH enabled; Tailscale SSH access rules permitted access for non-root users; and a non-interactive SSH session was used. Affected users should upgrade to version 1.38.2 to remediate the issue. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-28436 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-269 | Improper Privilege Management |
CPE : Common Platform Enumeration
| Type | Description | Count |
|---|---|---|
| Application | 1 |
Sources (Detail)
Alert History
| Date | Informations |
|---|---|
| 2023-11-07 21:29:38 |
|
| 2023-03-31 17:27:20 |
|
| 2023-03-24 09:27:12 |
|
| 2023-03-24 00:27:13 |
|
