CVE-2018-18831 Explained : Impact and Mitigation

A vulnerability has been found in MCMS 4.6.5 that allows an attacker to perform a Directory Traversal attack, potentially leading to unauthorized file writing.

Understanding CVE-2018-18831

This CVE identifies a security flaw in the GeneraterAction.java file within the MCMS 4.6.5 application.

What is CVE-2018-18831?

The vulnerability in MCMS 4.6.5 enables attackers to write a .jsp file to any directory by exploiting a Directory Traversal attack through the url parameter.

The Impact of CVE-2018-18831

The vulnerability could result in unauthorized file writing, potentially allowing attackers to execute malicious code on the affected system.

Technical Details of CVE-2018-18831

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The flaw in GeneraterAction.java in MCMS 4.6.5 allows attackers to write a .jsp file to any directory by manipulating the url parameter.

Affected Systems and Versions

Product: MCMS 4.6.5
Vendor: Not applicable
Version: Not applicable

Exploitation Mechanism

Attackers exploit the vulnerability by using the ../ operator in the position parameter to perform a Directory Traversal attack through the url parameter.

Mitigation and Prevention

Protecting systems from CVE-2018-18831 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches or updates provided by the vendor.
Implement input validation to prevent malicious input.
Monitor and restrict access to sensitive directories.

Long-Term Security Practices

Conduct regular security assessments and audits.
Educate users and developers on secure coding practices.
Implement least privilege access controls.

Patching and Updates

Ensure that the MCMS 4.6.5 application is updated with the latest security patches to mitigate the vulnerability.