CVE-2021-41551 Explained : Impact and Mitigation
Learn about CVE-2021-41551, a vulnerability in Leostream Connection Broker 9.0.40.17 that permits directory traversal attacks through malicious ZIP file uploads. Discover impact, mitigation steps, and prevention strategies.
Leostream Connection Broker 9.0.40.17 allows administrators to conduct directory traversal attacks by uploading a ZIP file that contains a symbolic link.
Understanding CVE-2021-41551
Leostream Connection Broker 9.0.40.17 is vulnerable to a directory traversal attack that can be exploited by uploading a malicious ZIP file.
What is CVE-2021-41551?
The CVE-2021-41551 vulnerability in Leostream Connection Broker 9.0.40.17 enables administrators to perform directory traversal attacks using specially crafted ZIP files.
The Impact of CVE-2021-41551
This vulnerability allows an attacker to bypass security measures and access sensitive files, potentially leading to unauthorized data disclosure or system compromise.
Technical Details of CVE-2021-41551
Leostream Connection Broker 9.0.40.17 is susceptible to exploitation through the following technical details:
Vulnerability Description
The issue arises from the software's improper handling of ZIP files containing symbolic links, leading to directory traversal.
Affected Systems and Versions
- Product: Leostream Connection Broker 9.0.40.17
- Vendor: Leostream
- Version: Not applicable
Exploitation Mechanism
Attackers can exploit this vulnerability by uploading a ZIP file that includes a symbolic link, allowing them to traverse directories and potentially access unauthorized areas.
Mitigation and Prevention
To address CVE-2021-41551 and enhance system security, consider the following mitigation strategies:
Immediate Steps to Take
- Disable file uploads in Leostream Connection Broker settings.
- Implement input validation to prevent malicious ZIP file uploads.
Long-Term Security Practices
- Regularly update the Leostream Connection Broker to the latest version.
- Conduct security assessments and penetration testing to identify and address vulnerabilities.
- Train system administrators on secure file handling practices.
Patching and Updates
- Apply patches released by Leostream to fix the vulnerability and enhance system security.