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FreeBSD : py-impacket -- multiple path traversal vulnerabilities (b692a49c-9ae7-4958-af21-cbf8f5b819ea)

critical Nessus Plugin ID 174294

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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 b692a49c-9ae7-4958-af21-cbf8f5b819ea advisory.

 - Multiple path traversal vulnerabilities exist in smbserver.py in Impacket through 0.9.22. An attacker that connects to a running smbserver instance can list and write to arbitrary files via ../ directory traversal. This could potentially be abused to achieve arbitrary code execution by replacing /etc/shadow or an SSH authorized key. (CVE-2021-31800)

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.

See Also

https://osv.dev/vulnerability/GHSA-mj63-64x7-57xf

https://osv.dev/vulnerability/PYSEC-2021-17

http://www.nessus.org/u?2bb603bf

Plugin Details

Severity: Critical

ID: 174294

File Name: freebsd_pkg_b692a49c9ae74958af21cbf8f5b819ea.nasl

Version: 1.1

Type: local

Published: 4/14/2023

Updated: 6/5/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2021-31800

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:py310-impacket, p-cpe:/a:freebsd:freebsd:py311-impacket, p-cpe:/a:freebsd:freebsd:py37-impacket, p-cpe:/a:freebsd:freebsd:py38-impacket, p-cpe:/a:freebsd:freebsd:py39-impacket, cpe:/o:freebsd:freebsd

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/9/2023

Vulnerability Publication Date: 5/5/2021

Reference Information

CVE: CVE-2021-31800