// For flags

CVE-2021-31459

Foxit Reader XFA Form Use-After-Free Remote Code Execution Vulnerability

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 10.1.1.37576. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of XFA Forms. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-13162.

Esta vulnerabilidad permite a atacantes remotos ejecutar código arbitrario en instalaciones afectadas de Foxit Reader versión 10.1.1.37576. Es requerida una interacción del usuario para explotar esta vulnerabilidad, ya que el objetivo debe visitar una página maliciosa o abrir un archivo malicioso. El fallo específico se presenta dentro del manejo de los Formularios XFA. El problema es debido a una falta de comprobación de la existencia de un objeto antes de llevar a cabo operaciones en el objeto. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto del proceso actual. Fue ZDI-CAN-13162

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the handling of XFA Forms. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process.

*Credits: Yongil Lee(@intellee) and Wonyoung Jung(@nonetype) of Diffense
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-04-16 CVE Reserved
  • 2021-05-07 CVE Published
  • 2024-05-24 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-416: Use After Free
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Foxitsoftware
Search vendor "Foxitsoftware"
Phantompdf
Search vendor "Foxitsoftware" for product "Phantompdf"
<= 9.7.5.29616
Search vendor "Foxitsoftware" for product "Phantompdf" and version " <= 9.7.5.29616"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows
Search vendor "Microsoft" for product "Windows"
--
Safe
Foxitsoftware
Search vendor "Foxitsoftware"
Phantompdf
Search vendor "Foxitsoftware" for product "Phantompdf"
>= 10.0.0.0 <= 10.1.3.37598
Search vendor "Foxitsoftware" for product "Phantompdf" and version " >= 10.0.0.0 <= 10.1.3.37598"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows
Search vendor "Microsoft" for product "Windows"
--
Safe
Foxitsoftware
Search vendor "Foxitsoftware"
Reader
Search vendor "Foxitsoftware" for product "Reader"
<= 10.1.3.37598
Search vendor "Foxitsoftware" for product "Reader" and version " <= 10.1.3.37598"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows
Search vendor "Microsoft" for product "Windows"
--
Safe