CVE-2017-15894 : Exploit Details and Defense Strategies
Learn about CVE-2017-15894, a directory traversal vulnerability in Synology DiskStation Manager (DSM) versions prior to 6.0.3-8754-3 and 5.2-5967-6, allowing remote authenticated users to write arbitrary files.
A directory traversal vulnerability in Synology DiskStation Manager (DSM) versions prior to 6.0.3-8754-3 and 5.2-5967-6 allows remote authenticated users to write arbitrary files.
Understanding CVE-2017-15894
This CVE involves a security issue in Synology DiskStation Manager (DSM) that could be exploited by remote authenticated users.
What is CVE-2017-15894?
The vulnerability lies in the SYNO.FileStation.Extract component in Synology DSM, enabling users to write arbitrary files through a directory traversal exploit.
The Impact of CVE-2017-15894
The vulnerability allows remote authenticated users to manipulate file writing, potentially leading to unauthorized access and data compromise.
Technical Details of CVE-2017-15894
This section delves into the specifics of the vulnerability.
Vulnerability Description
The SYNO.FileStation.Extract component in Synology DSM versions prior to 6.0.3-8754-3 and 5.2-5967-6 contains a directory traversal flaw, permitting users to write arbitrary files by exploiting the dest_folder_path parameter.
Affected Systems and Versions
- Product: Synology DiskStation Manager (DSM)
- Vendor: Synology
- Affected Versions:
- 6.0.x before 6.0.3-8754-3
- Versions before 5.2-5967-6
Exploitation Mechanism
The vulnerability can be exploited by remote authenticated users leveraging the dest_folder_path parameter to write files.
Mitigation and Prevention
Protecting systems from CVE-2017-15894 is crucial to maintaining security.
Immediate Steps to Take
- Apply the necessary patches provided by Synology.
- Monitor for any unauthorized file modifications.
- Restrict access to vulnerable components.
Long-Term Security Practices
- Regularly update Synology DSM to the latest version.
- Conduct security audits to identify and address vulnerabilities.
- Educate users on safe file handling practices.
Patching and Updates
Synology has released patches to address the vulnerability. Ensure prompt installation of these updates to mitigate the risk of exploitation.