CVE-2017-2789 : Exploit Details and Defense Strategies
Learn about CVE-2017-2789 affecting JustSystems Ichitaro Office 2016 Trial, a heap-based buffer overflow vulnerability that can lead to remote code execution. Find mitigation steps and preventive measures here.
JustSystems Ichitaro Office 2016 Trial is affected by a heap-based buffer overflow vulnerability that can potentially lead to remote code execution.
Understanding CVE-2017-2789
JustSystems Ichitaro Office 2016 Trial is prone to a vulnerability that arises during the file data copying process, leading to a heap-based buffer overflow.
What is CVE-2017-2789?
The vulnerability occurs when the application copies file data into a buffer and calculates the amount of data to copy. If the calculated values exceed the buffer size, a heap-based buffer overflow occurs, potentially allowing an attacker to execute arbitrary code.
The Impact of CVE-2017-2789
The vulnerability has a CVSS base score of 8.8, indicating a high severity level. It can result in remote code execution within the context of the application, posing a significant risk to confidentiality, integrity, and availability.
Technical Details of CVE-2017-2789
JustSystems Ichitaro Office 2016 Trial's vulnerability involves:
Vulnerability Description
- The application prioritizes a smaller calculated value for data copying, leading to a heap-based buffer overflow.
Affected Systems and Versions
- Product: Ichitaro
- Vendor: JustSystems
- Affected Version: Not applicable
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
Mitigation and Prevention
To address CVE-2017-2789, consider the following:
Immediate Steps to Take
- Apply security patches or updates provided by the vendor.
- Implement network security measures to prevent unauthorized access.
Long-Term Security Practices
- Regularly update software and applications to mitigate known vulnerabilities.
- Conduct security assessments and penetration testing to identify and address potential weaknesses.
Patching and Updates
- Stay informed about security advisories and patches released by JustSystems to address the vulnerability.