Arbitrary macro execution in LibreOffice

1) Security features bypass

EUVDB-ID: #VU84093

Risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

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

CPE2.3

• cpe:2.3:a:libreoffice:libreoffice:7.0.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:libreoffice:libreoffice:7.0.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:libreoffice:libreoffice:7.0.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:libreoffice:libreoffice:7.0.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:libreoffice:libreoffice:7.0.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:libreoffice:libreoffice:7.0.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:libreoffice:libreoffice:7.0.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:libreoffice:libreoffice:7.0.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:libreoffice:libreoffice:7.0.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:libreoffice:libreoffice:7.0.4.2:*:*:*:*:*:*:*

External links

https://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.