#VU57207 Improper Verification of Cryptographic Signature in OpenOffice - CVE-2021-41832

Vulnerability identifier: #VU57207

Vulnerability risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-41832

CWE-ID: CWE-347

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
OpenOffice
Client/Desktop applications / Office applications

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to perform a spoofing attack.

The vulnerability exists due to incorrect signature verification. A remote attacker can manipulate signed documents and macros to appear to come from a trusted source.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

OpenOffice: 4.0.0 - 4.1.10

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External links
https://lists.apache.org/thread.html/rd3214a568b43dd335b5d558f521377f4bff750684dea18eb041fc1bb%40%3Cusers.openoffice.apache.org%3E

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Q & A

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.