Arbitrary macro execution in LibreOffice

1) Security features bypass

EUVDB-ID: #VU84093

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-6186

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper validation of hyperlinks within the document. A remote attacker can create a specially crafted hyperlink, trick the victim into clicking on the link inside the document and execute arbitrary macro without a warning, resulting in a code execution.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

LibreOffice: 7.0.0.1 - 7.6.3.2

External links

http://www.libreoffice.org/about-us/security/advisories/cve-2023-6186

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?

No. We are not aware of malware exploiting this vulnerability.