CVE-2020-15637

Foxit PhantomPDF SetLocalDescription Use-After-Free Information Disclosure Vulnerability

Severity Score

3.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Foxit PhantomPDF 9.7.1.29511. 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 SetLocalDescription method. By performing actions in JavaScript, an attacker can cause a pointer to be reused after it has been freed. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process. Was ZDI-CAN-10972.

Esta vulnerabilidad permite a atacantes remotos revelar información confidencial sobre instalaciones afectadas de Foxit PhantomPDF versión 9.7.1.29511. 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 método SetLocalDescription. Al llevar a cabo acciones en JavaScript, un atacante puede hacer que un puntero sea reutilizado después de que haya sido liberado. Un atacante puede aprovechar esto junto con otras vulnerabilidades para ejecutar código en el contexto del proceso actual. Fue ZDI-CAN-10972.

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Foxit PhantomPDF. 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 SetLocalDescription method. By performing actions in JavaScript, an attacker can cause a pointer to be reused after it has been freed. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process.

*Credits: Mat Powell of Trend Micro Zero Day Initiative

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

2020-07-07 CVE Reserved
2020-08-04 CVE Published
2024-08-04 CVE Updated
2024-08-12 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-416: Use After Free

CAPEC

References (2)

URL	Tag	Source
https://www.zerodayinitiative.com/advisories/ZDI-20-932	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.foxitsoftware.com/support/security-bulletins.html	2020-08-24

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"	<= 10.0.0.35798 Search vendor "Foxitsoftware" for product "Phantompdf" and version " <= 10.0.0.35798"	-	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"	<= 10.0.0.35798 Search vendor "Foxitsoftware" for product "Reader" and version " <= 10.0.0.35798"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe