CVE-2020-27249 : Exploit Details and Defense Strategies
Learn about CVE-2020-27249, a critical heap-based buffer overflow vulnerability in SoftMaker Office PlanMaker 2021 (Revision 1014) that could allow remote attackers to execute arbitrary code.
A heap-based buffer overflow vulnerability in SoftMaker Office PlanMaker 2021 (Revision 1014) could allow an attacker to execute arbitrary code by enticing a victim to open a specially crafted document.
Understanding CVE-2020-27249
This CVE involves a critical vulnerability in SoftMaker Office PlanMaker 2021 (Revision 1014) that could lead to a heap-based buffer overflow.
What is CVE-2020-27249?
A specially crafted document can trigger a heap-based buffer overflow in the document parser of SoftMaker Office PlanMaker 2021 (Revision 1014), potentially enabling an attacker to execute malicious code.
The Impact of CVE-2020-27249
- CVSS Base Score: 8.8 (High)
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: Required
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
Technical Details of CVE-2020-27249
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability arises from copying data from a specific record type into a buffer smaller than the copied size, leading to a heap-based buffer overflow.
Affected Systems and Versions
- Affected Product: SoftMaker
- Affected Version: SoftMaker Office PlanMaker 2021 (Revision 1014)
Exploitation Mechanism
An attacker can exploit this vulnerability by tricking a user into opening a malicious document, triggering the buffer overflow.
Mitigation and Prevention
Protect your systems from potential exploitation by following these mitigation strategies.
Immediate Steps to Take
- Update SoftMaker Office PlanMaker 2021 to a patched version.
- Avoid opening documents from untrusted or unknown sources.
- Implement network security measures to detect and block malicious documents.
Long-Term Security Practices
- Regularly update software and security patches.
- Conduct security awareness training to educate users on identifying phishing attempts.
Patching and Updates
Ensure timely installation of security patches and updates to prevent exploitation of known vulnerabilities.