CVE-2021-20561 Explained : Impact and Mitigation
Learn about CVE-2021-20561 affecting IBM Sterling File Gateway versions 2.2.0.0 through 6.1.1.0. Discover the impact, technical details, and mitigation strategies for this cross-site scripting vulnerability.
IBM Sterling File Gateway versions 2.2.0.0 through 6.1.1.0 are susceptible to a cross-site scripting vulnerability. This flaw enables threat actors to inject malicious JavaScript code into the Web UI, potentially compromising user credentials in a trusted session.
Understanding CVE-2021-20561
This section delves into the details of the CVE-2021-20561 vulnerability affecting IBM Sterling File Gateway.
What is CVE-2021-20561?
CVE-2021-20561 pertains to a cross-site scripting vulnerability found in IBM Sterling File Gateway versions 2.2.0.0 through 6.1.1.0. The flaw allows attackers to execute arbitrary JavaScript in the Web UI, leading to possible credential exposure within a secure session.
The Impact of CVE-2021-20561
The vulnerability's impact is rated as medium, with a CVSS base score of 5.4. Successful exploitation could result in the disclosure of low confidentiality information within the affected system.
Technical Details of CVE-2021-20561
This section provides a deeper insight into the technical aspects of CVE-2021-20561.
Vulnerability Description
The vulnerability in IBM Sterling File Gateway enables cross-site scripting, permitting attackers to manipulate the Web UI by injecting malicious JavaScript code.
Affected Systems and Versions
IBM Sterling File Gateway versions 2.2.0.0 through 6.1.1.0 are impacted by this vulnerability.
Exploitation Mechanism
Threat actors can exploit this vulnerability by injecting specially crafted JavaScript code into the Web UI, potentially leading to credentials exposure.
Mitigation and Prevention
Mitigation strategies are crucial to safeguard systems against CVE-2021-20561.
Immediate Steps to Take
IBM Sterling File Gateway users should apply the official fix provided by IBM to address the cross-site scripting vulnerability promptly.
Long-Term Security Practices
Implementing secure coding practices and regularly monitoring for vulnerabilities can enhance overall system security.
Patching and Updates
Stay informed about security updates released by IBM for the Sterling File Gateway and apply patches promptly to mitigate the risk of exploitation.