CVE-2019-11409 : Exploit Details and Defense Strategies
Learn about CVE-2019-11409 affecting FusionPBX 4.4.3. Understand the command injection vulnerability, its impact, affected systems, exploitation, and mitigation steps.
FusionPBX 4.4.3's Operator Panel module is susceptible to a command injection vulnerability, allowing authenticated non-administrative attackers to execute arbitrary commands on the host. This CVE also highlights the risk of remote code execution when combined with an XSS vulnerability.
Understanding CVE-2019-11409
The Operator Panel module in FusionPBX 4.4.3 is affected by a command injection vulnerability that can lead to remote code execution.
What is CVE-2019-11409?
The vulnerability in the file app/operator_panel/exec.php allows attackers to execute arbitrary commands due to the lack of input validation.
The Impact of CVE-2019-11409
Exploiting this vulnerability can enable authenticated non-administrative attackers to run commands on the host, potentially leading to remote code execution.
Technical Details of CVE-2019-11409
The technical aspects of the vulnerability in FusionPBX 4.4.3's Operator Panel module.
Vulnerability Description
The vulnerability arises from the absence of input validation in the Operator Panel module, facilitating command injection attacks.
Affected Systems and Versions
- Product: FusionPBX 4.4.3
- Vendor: FusionPBX
- Version: All versions are affected
Exploitation Mechanism
- Attackers need to be authenticated non-administrative users to exploit this vulnerability.
- By leveraging the command injection flaw, attackers can execute arbitrary commands on the host.
Mitigation and Prevention
Protective measures to address and prevent the CVE-2019-11409 vulnerability.
Immediate Steps to Take
- Apply the patches provided by FusionPBX to mitigate the vulnerability.
- Regularly monitor and audit the FusionPBX installation for any signs of unauthorized access.
Long-Term Security Practices
- Implement strict input validation mechanisms in web applications to prevent command injection attacks.
- Conduct security training for users to recognize and report suspicious activities.
Patching and Updates
- Stay updated with security advisories from FusionPBX and promptly apply patches to secure the system.