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QNAP QTS Buffer Overflow Vulnerability in Samba (QSA-23-03)

high Nessus Plugin ID 174226

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Synopsis

The remote device is missing a vendor-supplied security patch.

Description

The version of QNAP QTS installed on the remote host is affected by a buffer overflow vulnerability as referenced in the QSA-23-03 advisory. PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has a similar bug.

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

Solution

Apply the solution referenced in the QSA-23-03 advisory

See Also

https://www.qnap.com/en/security-advisory/QSA-23-03

Plugin Details

Severity: High

ID: 174226

File Name: qnap_qts_QSA-23-03.nasl

Version: 1.6

Type: combined

Family: Misc.

Published: 4/13/2023

Updated: 11/7/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7

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

CVSS Score Source: CVE-2022-42898

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:qnap:qts, cpe:/a:qnap:qts

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/30/2023

Vulnerability Publication Date: 11/15/2022

Reference Information

CVE: CVE-2022-42898