Security restrictions bypass in LibreOffice repair mode

1) Security features bypass

EUVDB-ID: #VU97440

Risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-7788

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to software allows to execute macros with an invalid signature in when using a "repair mode". A remote attacker can trick the victim into recover a specially crafted file and potentially compromise the affected system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

LibreOffice: 24.2.0.1 - 24.2.4.2

External links

http://www.libreoffice.org/about-us/security/advisories/cve-2024-7788/

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.