LibreOffice 6.2.6 / 6.3.1 Security Control Bypass (Windows)

high Nessus Plugin ID 133471

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Synopsis

An issue with how LibreOffice handles URL decoding can lead to the execution of macros that would otherwise be restricted by inbuilt access controls.

Description

According to its self-reported version, the LibreOffice application running on the remote host is prior to 6.2.6.
It is, therefore, affected by a flaw in how LibreOffice sanitizes user supplied input when decoding URL encoded characters in the macro location. This can result in macros within a document to be executed without the users knowledge.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to LibreOffice version 6.2.6, 6.3.1 or later.

Plugin Details

Severity: High

ID: 133471

File Name: libreoffice_631_cve_2019_9853.nasl

Version: 1.3

Type: local

Agent: windows

Family: Windows

Published: 2/5/2020

Updated: 3/27/2020

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2019-9853

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

CPE: cpe:/a:libreoffice:libreoffice

Required KB Items: SMB/Registry/Enumerated, installed_sw/LibreOffice

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/28/2019

Vulnerability Publication Date: 9/27/2019

Reference Information

CVE: CVE-2019-9853

Detections

Analytics