Detections
Analytics

Synology DiskStation Manager Samba Out-of-bounds Read (CVE-2021-44142)

high Tenable OT Security Plugin ID 502471

Synopsis

The remote OT asset is affected by a vulnerability.

Description

The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide ...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver. Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

See Also

https://bugzilla.samba.org/show_bug.cgi?id=14914

https://kb.cert.org/vuls/id/119678

https://security.gentoo.org/glsa/202309-06

https://www.samba.org/samba/security/CVE-2021-44142.html

http://www.nessus.org/u?5ddcc0f1

http://www.nessus.org/u?cd4ac3fd

Plugin Details

Severity: High

ID: 502471

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 10/1/2024

Updated: 10/2/2024

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: High

Score: 8.9

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7.8

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

CVSS Score Source: CVE-2021-44142

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 8.4

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

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

Vulnerability Information

CPE: cpe:/a:synology:diskstation_manager

Required KB Items: Tenable.ot/Synology

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/21/2022

Vulnerability Publication Date: 2/21/2022

Reference Information

CVE: CVE-2021-44142

CWE: 125, 787