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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: Document Fdn.

Published: 2019-09-06T18:30:08.910063Z

Updated: 2024-09-16T19:24:19.650Z

Reserved: 2019-03-17T00:00:00

Link: CVE-2019-9854

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-09-06T19:15:11.997

Modified: 2023-11-07T03:13:47.720

Link: CVE-2019-9854

cve-icon Redhat

Severity : Moderate

Publid Date: 2019-09-06T00:00:00Z

Links: CVE-2019-9854 - Bugzilla