Remote code execution in LibreOffice

1) Path traversal

EUVDB-ID: #VU17362

Risk: High

CVSSv3.1: 9.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2018-16858

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error. A remote attacker can trick the victim into opening a specially crafted Office file, conduct path traversal attack and execute a python method from a script in any arbitrary file system location

Mitigation

The vulnerability has been addressed in the versions 6.0.7, 6.1.3.

Vulnerable software versions

LibreOffice: 6.0.0.1 - 6.1.2

External links

http://www.libreoffice.org/about-us/security/advisories/cve-2018-16858/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.