PT-2021-19342 · Foxit · Foxit Reader

Cor3Sm4Sh3R · Published 2021-05-07 · Updated 2021-05-14 · CVE-2021-31461

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 app.media objects due to the lack of proper validation of user-supplied data, resulting in a type confusion condition. This can be leveraged to execute code in the context of the current process.

Recommendations For Foxit Reader version 10.1.1.37576, consider disabling the handling of app.media objects as a temporary workaround until a patch is available. Restrict access to potentially 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 vulnerability.

RCE

Type Confusion

Weakness Enumeration

CWE-843

Related Identifiers

CVE-2021-31461

ZDI-21-550

Affected Products

Foxit Reader

References · 4

• https://zerodayinitiative.com/advisories/ZDI-21-550 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-31461 · Security Note
• https://osv.dev/vulnerability/CVE-2021-31461 · Vendor Advisory
• https://foxitsoftware.com/support/security-bulletins.php · Vendor Advisory