Vulnerability identifier: #VU53333
Vulnerability 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:
CWE-ID:
CWE-254
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
LibreOffice
Client/Desktop applications /
Office applications
Vendor: LibreOffice
Description
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to improper input validation when processing hyperlinks in a document. A remote attacker can create a document with a specially crafted hyperlink, trick the victim into clicking the link, bypass implemented restrictions on extensions imposed by the denylist and execute arbitrary commands on the system.
Note, the vulnerability affects macOS installations only.Mitigation
Install updates from vendor's website.
Vulnerable software versions
LibreOffice: 7.1.2.1 - 7.1.2.2, 7.1.1.1 - 7.1.1.2, 7.1.0.1 - 7.1.0.3, 7.0.5.1 - 7.0.5.2, 7.0.4.1 - 7.0.4.2, 7.0.3.1, 7.0.2.1 - 7.0.2.2, 7.0.1.1 - 7.0.1.2, 7.0.0.1 - 7.0.0.3
External links
http://www.libreoffice.org/about-us/security/advisories/cve-2021-25632/
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.