CVE-2020-13540 : What You Need to Know

An exploitable local privilege elevation vulnerability exists in the file system permissions of the Win-911 Enterprise V4.20.13 install directory via WIN-911 Account Change Utility. This vulnerability could allow an attacker to escalate privileges by overwriting executables.

Understanding CVE-2020-13540

This CVE involves a critical local privilege escalation vulnerability in Win-911 Enterprise V4.20.13.

What is CVE-2020-13540?

CVE-2020-13540 is a security flaw in the Win-911 Enterprise V4.20.13 software that enables attackers to elevate their privileges locally by manipulating file system permissions.

The Impact of CVE-2020-13540

The vulnerability has a CVSS base score of 9.3, indicating a critical severity level. The impact includes high confidentiality, integrity, and availability risks, with low attack complexity and no privileges required.

Technical Details of CVE-2020-13540

This section provides more in-depth technical information about the vulnerability.

Vulnerability Description

The vulnerability arises from incorrect file system permissions in the Win-911 Enterprise V4.20.13 install directory, specifically through the WIN-911 Account Change Utility.

Affected Systems and Versions

Product: Win-911
Version: Win-911 Enterprise V4.20.13

Exploitation Mechanism

Attack Vector: Local
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Changed

Mitigation and Prevention

Protecting systems from CVE-2020-13540 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor-supplied patches promptly.
Restrict access to vulnerable systems.
Monitor for any unauthorized changes.

Long-Term Security Practices

Regularly update and patch software.
Implement the principle of least privilege.
Conduct security training for employees.

Patching and Updates

Ensure that Win-911 Enterprise V4.20.13 is updated with the latest patches to mitigate the vulnerability.