Improper Access Control Affecting libreoffice-officebean-common package, versions <1:5.3.6.1-24.el7


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.35% (73rd percentile)

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  • Snyk IDSNYK-CENTOS7-LIBREOFFICEOFFICEBEANCOMMON-2157410
  • published26 Jul 2021
  • disclosed6 Sept 2019

Introduced: 6 Sep 2019

CVE-2019-9854  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

Upgrade Centos:7 libreoffice-officebean-common to version 1:5.3.6.1-24.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libreoffice-officebean-common package and not the libreoffice-officebean-common package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

LibreOffice has a feature where documents can specify that pre-installed macros can be executed on various script events such as mouse-over, document-open etc. Access is intended to be restricted to scripts under the share/Scripts/python, user/Scripts/python sub-directories of the LibreOffice install. Protection was added, to address CVE-2019-9852, to avoid a directory traversal attack where scripts in arbitrary locations on the file system could be executed by employing a URL encoding attack to defeat the path verification step. However this protection could be bypassed by taking advantage of a flaw in how LibreOffice assembled the final script URL location directly from components of the passed in path as opposed to solely from the sanitized output of the path verification step. This issue affects: Document Foundation LibreOffice 6.2 versions prior to 6.2.7; 6.3 versions prior to 6.3.1.

CVSS Scores

version 3.1