CVE-2021-44704 : Exploit Details and Defense Strategies
Learn about CVE-2021-44704 impacting Adobe Acrobat Reader DC versions. Discover the severity, impact, affected systems, and mitigation steps for this use-after-free vulnerability.
Adobe Acrobat Reader DC versions 21.007.20099 and earlier are affected by a use-after-free vulnerability that could allow arbitrary code execution.
Understanding CVE-2021-44704
Acrobat Reader DC versions are vulnerable to a use-after-free exploit enabling arbitrary code execution.
What is CVE-2021-44704?
Adobe Acrobat Reader DC versions 21.007.20099 and earlier are impacted by a use-after-free flaw, potentially leading to arbitrary code execution in the user's context.
The Impact of CVE-2021-44704
- CVSS Base Score: 7.8 (High Severity)
- Attack Vector: Local
- User Interaction: Required
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
Technical Details of CVE-2021-44704
Adobe Acrobat Reader vulnerability technical insights.
Vulnerability Description
The use-after-free vulnerability in Acrobat Reader DC version allows attackers to execute arbitrary code upon successful exploitation.
Affected Systems and Versions
- Acrobat Reader DC version <= 21.007.20099
- Acrobat Reader DC version <= 20.004.30017
- Acrobat Reader DC version <= 17.011.30204
Exploitation Mechanism
- Exploitation requires user interaction by opening a malicious file triggering the vulnerability.
Mitigation and Prevention
Actions to mitigate and prevent the CVE-2021-44704 vulnerability.
Immediate Steps to Take
- Update Acrobat Reader to the latest version.
- Exercise caution when opening files from untrusted sources.
Long-Term Security Practices
- Regularly update software to patch known vulnerabilities.
- Implement email and web filtering to block malicious content.
Patching and Updates
- Apply security patches provided by Adobe promptly to secure the system.