// For flags

CVE-2019-6771

Foxit Reader AcroForm value Use-After-Free Information Disclosure Vulnerability

Severity Score

5.5
*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 disclose sensitive information on vulnerable installations of Foxit Reader 2019.010.20098. 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 the value property of a Field object within AcroForms. 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 in conjunction with other vulnerabilities to execute code in the context of the current process. Was ZDI-CAN-8230.

Esta vulnerabilidad permite a los atacantes remotos revelar información confidencial sobre instalaciones vulnerables de Foxit Reader 2019.010.20098. La interacción del usuario es necesaria para aprovechar esta vulnerabilidad, ya que el objetivo debe visitar una página maliciosa o abrir un archivo malicioso. El fallo específico existe en el manejo de la propiedad de valor de un objeto Field dentro de AcroForms. El problema se debe a la falta de validación de la existencia de un objeto antes de realizar operaciones en el objeto. Un atacante puede aprovechar esto junto con otras vulnerabilidades para ejecutar código en el contexto del proceso actual. Fue ZDI-CAN-8230.

This vulnerability allows remote attackers to disclose sensitive information on vulnerable 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 the value property of a Field object within AcroForms. 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 in conjunction with other vulnerabilities to execute code in the context of the current process.

*Credits: hemidallt
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-01-24 CVE Reserved
  • 2019-04-29 CVE Published
  • 2023-11-30 EPSS Updated
  • 2024-08-04 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"
Foxit Reader
Search vendor "Foxitsoftware" for product "Foxit Reader"
<= 9.4.1.16828
Search vendor "Foxitsoftware" for product "Foxit Reader" and version " <= 9.4.1.16828"
-
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"
<= 8.3.9.41099
Search vendor "Foxitsoftware" for product "Phantompdf" and version " <= 8.3.9.41099"
-
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"
>= 9.0.0 <= 9.4.1.16828
Search vendor "Foxitsoftware" for product "Phantompdf" and version " >= 9.0.0 <= 9.4.1.16828"
-
Affected
in Microsoft
Search vendor "Microsoft"
Windows
Search vendor "Microsoft" for product "Windows"
--
Safe