CVE-2021-27101 Explained : Impact and Mitigation
Learn about CVE-2021-27101 affecting Accellion FTA versions up to FTA_9_12_370, allowing SQL injection via crafted Host headers. Find mitigation steps and software patching advice.
A detailed overview of the SQL injection vulnerability impacting Accellion FTA versions prior to FTA_9_12_380.
Understanding CVE-2021-27101
This CVE highlights a SQL injection vulnerability present in Accellion FTA versions up to 9_12_370, allowing attackers to execute arbitrary SQL queries via a specially crafted Host header.
What is CVE-2021-27101?
Accellion FTA 9_12_370 and earlier versions are susceptible to SQL injection through a manipulated Host header in requests to document_root.html. The patched version to address this vulnerability is FTA_9_12_380 and above.
The Impact of CVE-2021-27101
Exploitation of this vulnerability could lead to unauthorized access, data manipulation, information disclosure, and potential compromise of the affected systems running the vulnerable Accellion FTA versions.
Technical Details of CVE-2021-27101
Let's dive deeper into the technical aspects of this security issue.
Vulnerability Description
The SQL injection flaw in Accellion FTA versions before FTA_9_12_380 allows threat actors to inject malicious SQL queries through a specially crafted Host header, posing a significant risk to the security and integrity of the system.
Affected Systems and Versions
Accellion FTA versions 9_12_370 and below are confirmed to be impacted by this SQL injection vulnerability.
Exploitation Mechanism
By sending a well-crafted Host header in a request to document_root.html, malicious actors can exploit this vulnerability to perform SQL injection attacks and potentially gain unauthorized access to the affected systems.
Mitigation and Prevention
Understanding the mitigation strategies and best practices to safeguard systems against CVE-2021-27101 is crucial.
Immediate Steps to Take
Users are strongly advised to update their Accellion FTA installations to the patched version FTA_9_12_380 or later to eliminate the SQL injection risk. Additionally, implementing strict input validation mechanisms can help mitigate the impact of such vulnerabilities.
Long-Term Security Practices
Regular security assessments, monitoring for unusual activities, and keeping software up to date are essential for maintaining a secure environment and preventing exploitation of known vulnerabilities.
Patching and Updates
Stay proactive in applying security patches released by Accellion to address identified vulnerabilities promptly and reduce the likelihood of successful attacks.