CVE-2020-4896 Explained : Impact and Mitigation

IBM Emptoris Sourcing versions 10.1.0, 10.1.1, and 10.1.3 are vulnerable to web cache poisoning due to improper input validation, potentially allowing attackers to modify HTTP request headers.

Understanding CVE-2020-4896

IBM Emptoris Sourcing versions 10.1.0, 10.1.1, and 10.1.3 are affected by a web cache poisoning vulnerability.

What is CVE-2020-4896?

This CVE identifies a vulnerability in IBM Emptoris Sourcing versions 10.1.0, 10.1.1, and 10.1.3 that could be exploited by attackers to manipulate HTTP request headers through improper input validation.

The Impact of CVE-2020-4896

The vulnerability could potentially lead to web cache poisoning, allowing threat actors to modify HTTP request headers, leading to various security risks.

Technical Details of CVE-2020-4896

IBM Emptoris Sourcing versions 10.1.0, 10.1.1, and 10.1.3 are susceptible to web cache poisoning due to inadequate input validation.

Vulnerability Description

The vulnerability in these versions of IBM Emptoris Sourcing arises from a lack of proper input validation, enabling attackers to manipulate HTTP request headers.

Affected Systems and Versions

Product: Emptoris Sourcing
Vendor: IBM
Vulnerable Versions: 10.1.0, 10.1.1, 10.1.3

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: None
Exploit Code Maturity: Unproven
CVSS Base Score: 6.5 (Medium)

Mitigation and Prevention

Immediate action and long-term security practices are crucial to mitigate the risks associated with CVE-2020-4896.

Immediate Steps to Take

Apply official fixes provided by IBM to address the vulnerability.
Monitor for any unusual HTTP request header modifications.

Long-Term Security Practices

Implement strict input validation mechanisms in web applications.
Regularly update and patch software to prevent known vulnerabilities.

Patching and Updates

Ensure that IBM Emptoris Sourcing is updated to a secure version that addresses the web cache poisoning vulnerability.