FreeBSD : seatd-launch -- remove files with escalated privileges with SUID (1cd565da-455e-41b7-a5b9-86ad8e81e33e)

critical Nessus Plugin ID 158217

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 1cd565da-455e-41b7-a5b9-86ad8e81e33e advisory.

- Kenny Levinsen reports: seatd-launch could use a user-specified socket path instead of the internally generated socket path, and would unlink the socket path before use to guard against collision with leftover sockets. This meant that a caller could freely control what file path would be unlinked and replaced with a user-owned seatd socket for the duration of the session. If seatd-launch had the SUID bit set, this could be used by a malicious user to remove files with the privileges of the owner of seatd-launch, which is likely root, and replace it with a user-owned domain socket. This does not directly allow retrieving the contents of existing files, and the user-owned socket file is at the current time not believed to be directly useful for further exploitation. (1cd565da-455e-41b7-a5b9-86ad8e81e33e)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

Plugin Details

Severity: Critical

ID: 158217

File Name: freebsd_pkg_1cd565da455e41b7a5b986ad8e81e33e.nasl

Version: 1.3

Type: local

Family: FreeBSD Local Security Checks

Published: 2/22/2022

Updated: 11/6/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 6.9

Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2022-25643

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:seatd, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 2/21/2022

Vulnerability Publication Date: 2/21/2022

Reference Information

CVE: CVE-2022-25643

Detections

Analytics