CVE-2019-13227 : Vulnerability Insights and Analysis
Learn about CVE-2019-13227, a vulnerability in deepin-clone versions prior to 1.1.3 allowing symlink attacks. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
Deepin-clone versions prior to 1.1.3 have a vulnerability that allows symlink attacks, potentially leading to unauthorized file creation or replacement within the file system.
Understanding CVE-2019-13227
When using the GUI mode, deepin-clone versions prior to 1.1.3 generate a log file in the specific directory /tmp/.deepin-clone.log with root privileges. However, this process also allows for the following of symlinks within that location, enabling a symlink attack.
What is CVE-2019-13227?
- Deepin-clone before version 1.1.3 creates a log file in /tmp/.deepin-clone.log with root privileges
- Symlink vulnerability allows unauthorized users to exploit and manipulate files in the file system
- Attackers can create or replace files in any location within the file system
- Content within the files is not controlled by the attacker
The Impact of CVE-2019-13227
The vulnerability in deepin-clone versions prior to 1.1.3 can have the following impacts:
- Unauthorized users can perform symlink attacks
- Potential for creating or overwriting files in the file system
- Risk of compromising system integrity and confidentiality
Technical Details of CVE-2019-13227
Deep dive into the technical aspects of the vulnerability
Vulnerability Description
- Deepin-clone before version 1.1.3 creates a log file in /tmp/.deepin-clone.log with root privileges
- Symlink vulnerability allows unauthorized users to manipulate files in the file system
Affected Systems and Versions
- Systems using deepin-clone versions prior to 1.1.3
- Version 1.1.3 and above are not affected
Exploitation Mechanism
- Attackers exploit the symlink vulnerability in the log file creation process
- Unauthorized users can create or replace files in any location within the file system
Mitigation and Prevention
Best practices to mitigate the vulnerability and prevent future occurrences
Immediate Steps to Take
- Update deepin-clone to version 1.1.3 or above
- Restrict access to sensitive directories
- Monitor file system changes for suspicious activities
Long-Term Security Practices
- Regularly update software and applications to patch vulnerabilities
- Implement least privilege access controls to limit unauthorized actions
Patching and Updates
- Apply patches provided by deepin-clone to fix the symlink vulnerability
- Stay informed about security advisories and updates from the software vendor