Vulnerability identifier: #VU50257

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-451

Exploitation vector: Network

Exploit availability: No

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

Vendor: Foxit Software Inc.

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing of user-supplied data. The application fails to identify the objects in the incremental update when the Subtype entry of the Annotation dictionary is set as null. A remote attacker can forge a PDF file that will appear as legit one and perform a spoofing attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Foxit Reader for Mac: 4.1.0.1023 - 4.1.1.1123

Foxit PDF Editor for Mac (formerly PhantomPDF): 3.0.0.0818 - 4.1.1.1123

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

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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.