CVE-2020-4239 : Exploit Details and Defense Strategies

IBM Tivoli Netcool Impact 7.1.0.0 through 7.1.0.17 could allow a remote attacker to obtain sensitive information when a detailed technical error message is returned in the browser. This information could be used in further attacks against the system.

Understanding CVE-2020-4239

IBM Tivoli Netcool Impact 7.1.0.0 through 7.1.0.17 is susceptible to a vulnerability that could enable a remote attacker to access sensitive information, potentially leading to further system exploitation.

What is CVE-2020-4239?

CVE-2020-4239 is a security vulnerability in IBM Tivoli Netcool Impact versions 7.1.0.0 through 7.1.0.17 that allows unauthorized access to sensitive data through detailed error messages, posing a risk of subsequent system compromise.

The Impact of CVE-2020-4239

The vulnerability in IBM Tivoli Netcool Impact could result in a remote attacker obtaining critical information, increasing the likelihood of successful system attacks and unauthorized access.

Technical Details of CVE-2020-4239

IBM Tivoli Netcool Impact 7.1.0.0 through 7.1.0.17 is affected by the following:

Vulnerability Description

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
CVSS Base Score: 5.3 (Medium)
CVSS Temporal Score: 4.6 (Medium)
Exploit Code Maturity: Unproven

Affected Systems and Versions

Product: Tivoli Netcool Impact
Vendor: IBM
Vulnerable Versions: 7.1.0, 7.1.0.17

Exploitation Mechanism

The vulnerability allows a remote attacker to retrieve sensitive information by exploiting detailed error messages displayed in the browser, potentially leading to further malicious activities.

Mitigation and Prevention

To address CVE-2020-4239, consider the following steps:

Immediate Steps to Take

Apply official fixes provided by IBM to mitigate the vulnerability.
Monitor system logs and network traffic for any suspicious activities.
Educate users on the importance of not sharing sensitive information through error messages.

Long-Term Security Practices

Regularly update and patch the IBM Tivoli Netcool Impact software to prevent known vulnerabilities.
Conduct security assessments and penetration testing to identify and address potential weaknesses.

Patching and Updates

Ensure timely installation of security patches and updates released by IBM to enhance the overall security posture of the system.