Improper access control in LibreOffice - CVE-2019-9854

 

Improper access control in LibreOffice - CVE-2019-9854

Published: September 10, 2019


Vulnerability identifier: #VU20955
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2019-9854
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: LibreOffice
Affected software:
LibreOffice

Detailed vulnerability description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to unsafe URL assembly flaw in allowed script location check. A remote authenticated attacker can execute script in arbitrary locations on the filesystem by employing a URL encoding attack to defeat the path verification step.





How to mitigate CVE-2019-9854

Install updates from vendor's website.

Sources