CVE-2020-8850 : What You Need to Know
Learn about CVE-2020-8850, a high-severity vulnerability in Foxit Reader 9.7.0.29455 allowing remote code execution. Find mitigation steps and long-term security practices here.
This vulnerability allows remote attackers to execute arbitrary code 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 write past the end of an allocated structure. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-9415.
Understanding CVE-2020-8850
This CVE-2020-8850 vulnerability affects Foxit Reader version 9.7.0.29455.
What is CVE-2020-8850?
CVE-2020-8850 is a vulnerability that allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 9.7.0.29455. The flaw is related to the processing of JPEG2000 files.
The Impact of CVE-2020-8850
The impact of this vulnerability is rated as high, with a CVSS base score of 7.8. It requires user interaction to be exploited and can lead to remote code execution.
Technical Details of CVE-2020-8850
This section provides technical details about the vulnerability.
Vulnerability Description
The vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 9.7.0.29455 by exploiting a flaw in the processing of JPEG2000 files.
Affected Systems and Versions
- Product: Foxit Reader
- Vendor: Foxit
- Version: 9.7.0.29455
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Local
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
Mitigation and Prevention
Protecting systems from CVE-2020-8850 requires immediate action and long-term security practices.
Immediate Steps to Take
- Update Foxit Reader to a non-vulnerable 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 best practices to prevent code execution vulnerabilities.
Patching and Updates
- Check for security updates from Foxit and apply them promptly to mitigate the vulnerability.