CVE-2020-3926 Explained : Impact and Mitigation

ServiSign Windows Versions- Arbitrary File Access vulnerability allows attackers to access arbitrary files on the target system through a crafted API parameter.

Understanding CVE-2020-3926

An arbitrary-file-access vulnerability exists in the ServiSign security plugin, enabling attackers to access arbitrary files on the target system.

What is CVE-2020-3926?

This CVE refers to an arbitrary-file-access vulnerability in ServiSign Windows versions, allowing attackers to access arbitrary files on the target system by exploiting a specific API function.

The Impact of CVE-2020-3926

CVSS Base Score: 6.1 (Medium Severity)
Attack Vector: Network
Attack Complexity: High
Confidentiality Impact: High
Integrity Impact: None
Privileges Required: None
User Interaction: Required
Scope: Changed
Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N

Technical Details of CVE-2020-3926

The technical details of the vulnerability in ServiSign Windows Versions.

Vulnerability Description

The vulnerability allows attackers to access arbitrary files on the target system through a crafted API parameter.

Affected Systems and Versions

Affected Product: ServiSign Windows versions
Vendor: CHANGING
Affected Version: 0 (Custom)
Version Less Than or Equal To: 1.0.19.0617

Exploitation Mechanism

Attackers exploit a specific API function to access arbitrary files on the target system.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2020-3926.

Immediate Steps to Take

Update ServiSign Windows versions to a secure version.
Monitor API calls for suspicious activities.
Implement network segmentation to limit access.

Long-Term Security Practices

Regularly update and patch software to address vulnerabilities.
Conduct security training for employees on safe API usage.

Patching and Updates

Apply security patches provided by the vendor.
Stay informed about security updates and advisories.