CVE-2020-11798 : Security Advisory and Response
Learn about CVE-2020-11798, a Directory Traversal vulnerability in Mitel MiCollab AWV before 8.1.2.4 and 9.x before 9.1.3, allowing attackers to access restricted server files. Find mitigation steps here.
A Directory Traversal vulnerability in the web conference component of Mitel MiCollab AWV before 8.1.2.4 and 9.x before 9.1.3 could allow an attacker to access arbitrary files from restricted directories of the server via a crafted URL, due to insufficient access validation. A successful exploit could allow an attacker to access sensitive information from the restricted directories.
Understanding CVE-2020-11798
This CVE identifies a security flaw in Mitel MiCollab AWV that could be exploited by attackers to access unauthorized files on the server.
What is CVE-2020-11798?
The vulnerability allows attackers to bypass access restrictions and view sensitive files on the server by manipulating URLs.
The Impact of CVE-2020-11798
If exploited, this vulnerability could lead to unauthorized access to confidential information stored on the server, compromising data integrity and confidentiality.
Technical Details of CVE-2020-11798
Mitel MiCollab AWV versions before 8.1.2.4 and 9.x before 9.1.3 are affected by this vulnerability.
Vulnerability Description
The vulnerability arises due to insufficient access validation in the web conference component, enabling attackers to traverse directories and access files they should not have permission to view.
Affected Systems and Versions
- Vendor: Mitel
- Product: MiCollab AWV
- Versions: Before 8.1.2.4 and 9.x before 9.1.3
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting specific URLs to access files in restricted directories, circumventing access controls.
Mitigation and Prevention
To address CVE-2020-11798, follow these steps:
Immediate Steps to Take
- Update Mitel MiCollab AWV to version 8.1.2.4 or 9.1.3 to mitigate the vulnerability.
- Monitor server logs for any suspicious activity indicating potential exploitation.
Long-Term Security Practices
- Regularly review and update access controls and permissions to prevent unauthorized access.
- Conduct security assessments and penetration testing to identify and address vulnerabilities proactively.
Patching and Updates
- Apply security patches and updates provided by Mitel to ensure the system is protected against known vulnerabilities.