CVE-2019-18610 : What You Need to Know
Learn about CVE-2019-18610, a vulnerability in Sangoma Asterisk versions 13.x, 16.x, 17.x, and Certified Asterisk 13.21 allowing remote authenticated users to execute unauthorized system commands. Find mitigation steps and patching details here.
A vulnerability in manager.c within Sangoma Asterisk versions 13.x, 16.x, 17.x, and Certified Asterisk 13.21 through 13.21-cert4 allows a remote authenticated user to execute unauthorized system commands.
Understanding CVE-2019-18610
This CVE identifies a security flaw in Sangoma Asterisk that could be exploited by authenticated users lacking system authorization.
What is CVE-2019-18610?
The vulnerability in manager.c within Sangoma Asterisk versions 13.x, 16.x, 17.x, and Certified Asterisk 13.21 through 13.21-cert4 allows remote authenticated users without system authorization to execute unauthorized system commands using a specially crafted Originate AMI request.
The Impact of CVE-2019-18610
The vulnerability could be exploited by authenticated users to carry out unauthorized system commands, potentially leading to system compromise and unauthorized access.
Technical Details of CVE-2019-18610
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The flaw in manager.c within Sangoma Asterisk versions 13.x, 16.x, 17.x, and Certified Asterisk 13.21 through 13.21-cert4 allows remote authenticated users lacking system authorization to execute arbitrary system commands through a custom Originate AMI request.
Affected Systems and Versions
- Sangoma Asterisk versions 13.x, 16.x, 17.x
- Certified Asterisk 13.21 through 13.21-cert4
Exploitation Mechanism
- Remote authenticated Asterisk Manager Interface (AMI) users without system authorization
- Utilization of a specially crafted Originate AMI request
- Execution of arbitrary system commands
Mitigation and Prevention
Protecting systems from CVE-2019-18610 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by Sangoma for the affected versions
- Monitor and restrict access to the Asterisk Manager Interface (AMI)
- Review and update system authorization settings
Long-Term Security Practices
- Regularly update and patch Asterisk installations
- Implement strong authentication mechanisms for remote access
- Conduct security audits and assessments periodically
Patching and Updates
- Sangoma has released security advisories and updates to address this vulnerability
- Stay informed about security updates and apply them promptly to mitigate risks