CVE-2022-44748 : Security Advisory and Response
CVE-2022-44748 exposes KNIME Server to arbitrary file overwriting via malicious uploads, impacting data integrity and potentially leading to remote code execution. Update to versions 4.13.6, 4.14.3, or 4.15.3 to secure your server.
A directory traversal vulnerability in the ZIP archive extraction routines of KNIME Server since version 4.3.0 allows attackers to overwrite arbitrary files on the server's file system. This vulnerability, known as 'Zip-Slip,' can impact data integrity, cause errors in other software, and potentially lead to remote code execution.
Understanding CVE-2022-44748
This CVE identifies a critical security issue in KNIME Server that enables authenticated users to upload malicious workflows, resulting in the overwrite of critical files on the server.
What is CVE-2022-44748?
The CVE-2022-44748 refers to a directory traversal vulnerability in KNIME Server, allowing the uploading of malicious workflows to overwrite files on the server's file system.
The Impact of CVE-2022-44748
The vulnerability can compromise data integrity, corrupt vital files, and even lead to remote code execution by replacing and executing executable files on the server.
Technical Details of CVE-2022-44748
The vulnerability arises from a flaw in the ZIP archive extraction routines of KNIME Server.
Vulnerability Description
Attackers can exploit the vulnerability by uploading malicious KNIME workflows, overwriting files on the server accessible to the KNIME Server process.
Affected Systems and Versions
KNIME Server versions 4.3.0 to 4.15.0 are impacted, with versions older than 4.13.6, 4.14.3, and 4.15.3 susceptible to this vulnerability.
Exploitation Mechanism
Attackers authenticated and granted permissions to upload files to KNIME Server can leverage this vulnerability to overwrite critical files, impacting data and potentially executing code remotely.
Mitigation and Prevention
Immediate action is required to secure KNIME Server instances to prevent exploitation of this vulnerability.
Immediate Steps to Take
Users are strongly advised to update KNIME Server to fixed versions 4.13.6, 4.14.3, or 4.15.3 to mitigate the risk of exploitation.
Long-Term Security Practices
In addition to applying updates, organizations should enforce secure coding practices, user access controls, and regular security assessments to prevent similar vulnerabilities.
Patching and Updates
Regularly monitor security advisories from KNIME and promptly apply patches to ensure the system is protected from emerging threats.