Vulnerability identifier: #VU16795

Vulnerability risk: Low

CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-18688

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Foxit PDF Reader for Windows
Client/Desktop applications / Office applications
Foxit PDF Editor (formerly Foxit PhantomPDF)
Client/Desktop applications / Office applications

Vendor: Foxit Software Inc.

Description

The vulnerability allows a remote attacker to bypass security restrictions.

The vulnerability exists due to incorrect validation result when validating certain PDF file that is modified maliciously or contains non-standard signatures. A remote attacker can create a specially crafted PDF file, trick the victim into opening it and bypass signature validation.

Mitigation
Update to version 9.4.

Vulnerable software versions

Foxit PDF Reader for Windows: 9.0 - 9.3.0.10826

Foxit PDF Editor (formerly Foxit PhantomPDF): 9.0 - 9.3.0.10826

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External links
http://www.foxitsoftware.com/support/security-bulletins.php

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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.