CVE-2022-27621 Explained : Impact and Mitigation
Learn about CVE-2022-27621, a Path Traversal vulnerability in Synology USB Copy allowing remote authenticated users to read or write arbitrary files.
A Path Traversal vulnerability in the webapi component of Synology USB Copy before version 2.2.0-1086 has been identified, potentially allowing remote authenticated users to access arbitrary files.
Understanding CVE-2022-27621
This CVE describes a security flaw in Synology's USB Copy software that could be exploited by authenticated remote attackers to read or write files on the system.
What is CVE-2022-27621?
The vulnerability in the webapi component of Synology USB Copy permits remote authenticated users to access files beyond the intended directory limits, enabling unauthorized file manipulation.
The Impact of CVE-2022-27621
With a CVSS base score of 5.5, this medium-severity vulnerability could lead to unauthorized data access, potentially compromising confidentiality and integrity.
Technical Details of CVE-2022-27621
This section delves into the specifics of the vulnerability, including how it can be exploited and the systems affected.
Vulnerability Description
The vulnerability arises from insufficient restrictions on file pathnames, allowing attackers to traverse directories and access sensitive information.
Affected Systems and Versions
Synology USB Copy versions prior to 2.2.0-1086 are affected by this vulnerability, putting users of those versions at risk.
Exploitation Mechanism
Remote authenticated users can exploit this vulnerability via unspecified vectors to read or write files outside the intended directory.
Mitigation and Prevention
It is crucial to take immediate action to secure systems against potential exploitation of CVE-2022-27621.
Immediate Steps to Take
Users are advised to update Synology USB Copy to version 2.2.0-1086 or above to mitigate the risk of unauthorized file access.
Long-Term Security Practices
Practicing the principle of least privilege, implementing strong authentication mechanisms, and monitoring file access can enhance overall system security.
Patching and Updates
Regularly applying security patches provided by Synology is essential to address known vulnerabilities and protect systems from potential exploits.