CVE-2020-8857 : Vulnerability Insights and Analysis
Learn about CVE-2020-8857, a critical vulnerability in Foxit Reader 9.7.0.29455 allowing remote code execution. Understand the impact, affected systems, and mitigation steps.
A vulnerability in Foxit Reader 9.7.0.29455 allows remote attackers to execute arbitrary code, posing a high risk to confidentiality, integrity, and availability.
Understanding CVE-2020-8857
This CVE involves a critical security flaw in Foxit Reader version 9.7.0.29455 that enables attackers to run malicious code on the target system.
What is CVE-2020-8857?
The vulnerability in Foxit Reader 9.7.0.29455 permits remote attackers to execute arbitrary code by exploiting a flaw in the parsing of form Annotation objects within AcroForms. User interaction is necessary for the exploit to occur.
The Impact of CVE-2020-8857
The vulnerability has a high severity level, affecting confidentiality, integrity, and availability. The attacker can execute code within the current process, potentially leading to unauthorized access and system compromise.
Technical Details of CVE-2020-8857
This section provides in-depth technical insights into the CVE.
Vulnerability Description
The flaw arises from the lack of validating the existence of an object before performing operations on it, allowing attackers to execute arbitrary code.
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
- Vector String: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Mitigation and Prevention
Protecting systems from CVE-2020-8857 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update Foxit Reader to a patched version immediately.
- Avoid visiting suspicious or untrusted websites.
- Exercise caution when opening files from unknown sources.
Long-Term Security Practices
- Regularly update software and applications to patch known vulnerabilities.
- Implement robust cybersecurity measures such as firewalls and antivirus software.
Patching and Updates
- Foxit Software has likely released a security bulletin addressing this vulnerability. Refer to their official website for the latest updates and patches.