CVE-2020-26207 : Vulnerability Insights and Analysis

DatabaseSchemaViewer before version 2.7.4.3 is vulnerable to arbitrary code execution if a user is tricked into opening a specially crafted

.dbschema

file. The patch was released in v2.7.4.3. As a workaround, ensure

.dbschema

files from untrusted sources are not opened.

Understanding CVE-2020-26207

Unsafe deserialization in DatabaseSchemaViewer

What is CVE-2020-26207?

CVE-2020-26207 is a vulnerability in DatabaseSchemaViewer that allows arbitrary code execution when a user opens a malicious

.dbschema

file.

The Impact of CVE-2020-26207

This vulnerability has a CVSS base score of 8 (High severity) with a high impact on confidentiality, integrity, and availability. It requires low privileges but user interaction is required for exploitation.

Technical Details of CVE-2020-26207

Unsafe deserialization in DatabaseSchemaViewer

Vulnerability Description

Vulnerability Type: CWE-502 Deserialization of Untrusted Data
Attack Vector: Network
Attack Complexity: High
Privileges Required: Low
User Interaction: Required
Scope: Changed

Affected Systems and Versions

Product: dbschemareader
Vendor: martinjw
Vulnerable Versions: < 2.7.4.3

Exploitation Mechanism

The vulnerability can be exploited by tricking a user into opening a specially crafted

.dbschema

file, leading to arbitrary code execution.

Mitigation and Prevention

Protecting against CVE-2020-26207

Immediate Steps to Take

Update to version 2.7.4.3 or later to apply the patch.
Avoid opening

.dbschema

files from untrusted sources.

Long-Term Security Practices

Regularly update software to the latest versions.
Educate users on safe file handling practices.

Patching and Updates

Ensure all systems running DatabaseSchemaViewer are updated to version 2.7.4.3 to mitigate the vulnerability.