PT-2021-19354 · Foxit · Foxit Reader

Published 2021-05-11 · Updated 2021-05-27 · CVE-2021-31473

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 10.1.3.37598

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 specific flaw exists within the browseForDoc function, resulting from the lack of proper validation of user-supplied data. This can lead to a write past the end of an allocated data structure, allowing an attacker to execute code in the context of the current process.

Recommendations For Foxit Reader version 10.1.3.37598, as a temporary workaround, consider disabling the browseForDoc function until a patch is available. Restrict access to potentially malicious files and web pages to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-31473

ZDI-21-561

Affected Products

Foxit Reader

References · 5

• https://zerodayinitiative.com/advisories/ZDI-21-561 · Security Note
• https://osv.dev/vulnerability/CVE-2021-31473 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-31473 · Security Note
• https://foxitsoftware.com/support/security-bulletins.php · Vendor Advisory
• https://t.me/cvenotify/14811 · Telegram Post