CVE-2022-37379

Foxit PDF Reader AFSpecial_KeystrokeEx Use-After-Free Information Disclosure Vulnerability

Severity Score

5.5

*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 PDF Reader 11.2.1.53537. 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 AFSpecial_KeystrokeEx method. 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 arbitrary code in the context of the current process. Was ZDI-CAN-17168.

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Foxit PDF 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 AFSpecial_KeystrokeEx method. 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 arbitrary code in the context of the current process.

*Credits: Suyue Guo and Wei You from Renmin University of China

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

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-08-02 CVE Reserved
2022-08-05 CVE Published
2024-08-03 CVE Updated
2024-11-03 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-22-1051	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.foxit.com/support/security-bulletins.html	2023-04-06

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Foxit Search vendor "Foxit"	Pdf Editor Search vendor "Foxit" for product "Pdf Editor"	< 10.1.9 Search vendor "Foxit" for product "Pdf Editor" and version " < 10.1.9"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Foxit Search vendor "Foxit"	Pdf Editor Search vendor "Foxit" for product "Pdf Editor"	>= 11.0.0 < 11.2.3 Search vendor "Foxit" for product "Pdf Editor" and version " >= 11.0.0 < 11.2.3"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Foxit Search vendor "Foxit"	Pdf Editor Search vendor "Foxit" for product "Pdf Editor"	12.0.0.12394 Search vendor "Foxit" for product "Pdf Editor" and version "12.0.0.12394"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Foxit Search vendor "Foxit"	Pdf Reader Search vendor "Foxit" for product "Pdf Reader"	< 12.0.1 Search vendor "Foxit" for product "Pdf Reader" and version " < 12.0.1"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe