CVE-2020-8852 : Vulnerability Insights and Analysis
Learn about CVE-2020-8852, a vulnerability in Foxit Reader 9.7.0.29455 allowing remote attackers to disclose sensitive information. Find out the impact, affected systems, and mitigation steps.
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Foxit Reader 9.7.0.29455. 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 processing of JPEG2000 files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process. Was ZDI-CAN-9416.
Understanding CVE-2020-8852
This vulnerability affects Foxit Reader version 9.7.0.29455.
What is CVE-2020-8852?
CVE-2020-8852 is a vulnerability that allows remote attackers to disclose sensitive information on affected installations of Foxit Reader 9.7.0.29455. It requires user interaction to exploit by visiting a malicious page or opening a malicious file.
The Impact of CVE-2020-8852
- CVSS Base Score: 3.3 (Low)
- Attack Vector: Local
- User Interaction: Required
- Confidentiality Impact: Low
- Integrity Impact: None
- Privileges Required: None
- Scope: Unchanged
- Attack Complexity: Low
- Availability Impact: None
Technical Details of CVE-2020-8852
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability is classified as CWE-125: Out-of-bounds Read. It stems from the lack of proper validation of user-supplied data, allowing attackers to read past the end of an allocated buffer.
Affected Systems and Versions
- Affected Product: Foxit Reader
- Affected Version: 9.7.0.29455
Exploitation Mechanism
The vulnerability is exploited by manipulating JPEG2000 files, requiring user interaction to trigger the attack.
Mitigation and Prevention
Protecting systems from CVE-2020-8852 involves immediate steps and long-term security practices.
Immediate Steps to Take
- Update Foxit Reader to a patched version.
- Avoid visiting suspicious or untrusted websites.
- Be cautious when opening files from unknown sources.
Long-Term Security Practices
- Regularly update software and applications.
- Implement security awareness training for users.
- Utilize antivirus and security software.
Patching and Updates
Ensure that Foxit Reader is regularly updated with the latest security patches.