PT-2020-17562 · Foxit · Foxit Reader+1

Published 2020-12-31 · Updated 2021-09-08 · CVE-2020-35931

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Foxit Reader versions prior to 10.1.1 Foxit Reader version prior to 4.1.1 on macOS PhantomPDF versions prior to 9.7.5 PhantomPDF versions 10.x prior to 10.1.1 PhantomPDF version prior to 4.1.1 on macOS

Description An issue allows an attacker to spoof a certified PDF document via an Evil Annotation Attack. This is because the products fail to consider a null value for a Subtype entry of the Annotation dictionary, in an incremental update.

Recommendations For Foxit Reader versions prior to 10.1.1, update to version 10.1.1 or later. For Foxit Reader version prior to 4.1.1 on macOS, update to version 4.1.1 or later. For PhantomPDF versions prior to 9.7.5, update to version 9.7.5 or later. For PhantomPDF versions 10.x prior to 10.1.1, update to version 10.1.1 or later. For PhantomPDF version prior to 4.1.1 on macOS, update to version 4.1.1 or later.

Fix

Improper Check for Exceptional Conditions

Weakness Enumeration

CWE-754

Related Identifiers

CVE-2020-35931

Affected Products

Foxit Reader

Phantompdf

References · 5

• https://osv.dev/vulnerability/CVE-2020-35931 · Vendor Advisory
• https://foxitsoftware.com/support/security-bulletins.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-35931 · Security Note
• https://t.me/cibsecurity/21484 · Telegram Post
• https://t.me/cvenotify/8055 · Telegram Post