PT-2021-19335 · Foxit · Foxit Reader

Intellee + 3 · Published 2021-05-07 · Updated 2021-05-11 · CVE-2021-31455

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 version 10.1.1.37576

Description This issue allows remote attackers to execute arbitrary code on affected installations. User interaction is required, where the target must visit a malicious page or open a malicious file. The flaw exists within the handling of XFA forms due to the lack of validating the existence of an object prior to performing operations on it. An attacker can leverage this to execute code in the context of the current process.

Recommendations For Foxit Reader version 10.1.1.37576, consider disabling the handling of XFA forms as a temporary workaround until a patch is available. Restrict access to malicious pages or files to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.

Fix

RCE

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2021-31455

ZDI-21-544

Affected Products

Foxit Reader

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-31455 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-544 · Security Note
• https://osv.dev/vulnerability/CVE-2021-31455 · Vendor Advisory
• https://foxitsoftware.com/support/security-bulletins.php · Vendor Advisory