CVE-2021-20584 : Exploit Details and Defense Strategies

IBM Sterling File Gateway versions 2.2.0.0 through 6.1.1.0 are vulnerable to a remote file upload attack due to improper access controls.

Understanding CVE-2021-20584

This CVE refers to a security vulnerability found in IBM Sterling File Gateway that could allow a remote attacker to upload arbitrary files.

What is CVE-2021-20584?

CVE-2021-20584 is a flaw in IBM Sterling File Gateway versions 2.2.0.0 through 6.1.1.0 that may lead to unauthorized file uploads by remote attackers.

The Impact of CVE-2021-20584

The vulnerability poses a medium risk with a CVSS base score of 6.5 (Medium). If exploited, it could result in high integrity impact without requiring high privileges from the attacker.

Technical Details of CVE-2021-20584

The vulnerability arises from improper access controls in the affected versions of IBM Sterling File Gateway.

Vulnerability Description

The flaw allows remote attackers to upload files of their choice on the affected systems, potentially leading to unauthorized access or data leakage.

Affected Systems and Versions

IBM Sterling File Gateway versions 2.2.0.0, 6.0.1.0, 6.0.0.0, 6.1.0.2, 6.0.0.6, 6.0.3.4, 6.1.0.0, and 5.2.6.5_4 are impacted by this vulnerability.

Exploitation Mechanism

Remote attackers can exploit the vulnerability by bypassing access controls and uploading malicious files to the targeted systems.

Mitigation and Prevention

Organizations can take immediate steps to mitigate the risk posed by CVE-2021-20584 and implement long-term security practices to enhance their defenses.

Immediate Steps to Take

Apply official fixes provided by IBM to address the vulnerability in affected versions of Sterling File Gateway.

Long-Term Security Practices

Regularly update and patch all software components to prevent security gaps and vulnerabilities.

Patching and Updates

Stay informed about security updates and patches released by IBM for Sterling File Gateway to ensure timely protection against potential threats.