CVE-2018-9103 : Security Advisory and Response
Learn about CVE-2018-9103 affecting Mitel MiVoice Connect and Mitel ST versions, allowing attackers to execute arbitrary scripts through a reflected XSS attack. Find mitigation steps and patching details here.
Mitel MiVoice Connect and Mitel ST versions contain a vulnerability that could allow an attacker to execute arbitrary scripts through a reflected cross-site scripting (XSS) attack.
Understanding CVE-2018-9103
This CVE involves a security flaw in the conferencing component of Mitel MiVoice Connect and Mitel ST versions, potentially enabling unauthorized script execution.
What is CVE-2018-9103?
The vulnerability in Mitel MiVoice Connect and Mitel ST versions allows an unauthenticated attacker to exploit inadequate validation on the signin.php page, leading to a reflected cross-site scripting (XSS) attack.
The Impact of CVE-2018-9103
If successfully exploited, this vulnerability could permit an attacker to execute arbitrary scripts, posing a significant security risk to affected systems.
Technical Details of CVE-2018-9103
Mitel MiVoice Connect and Mitel ST versions are susceptible to a reflected cross-site scripting (XSS) attack due to insufficient validation on the signin.php page.
Vulnerability Description
The vulnerability arises from inadequate validation on the signin.php page, potentially allowing attackers to execute arbitrary scripts.
Affected Systems and Versions
- Mitel MiVoice Connect versions R1707-PREM SP1 (21.84.5535.0) and earlier
- Mitel ST 14.2 versions GA27 (19.49.5200.0) and earlier
Exploitation Mechanism
Attackers can exploit the vulnerability by manipulating input on the signin.php page, enabling the execution of malicious scripts.
Mitigation and Prevention
Mitigating the CVE-2018-9103 vulnerability requires immediate action and long-term security measures.
Immediate Steps to Take
- Apply security patches provided by Mitel promptly
- Monitor network traffic for any suspicious activities
- Educate users on identifying and avoiding phishing attempts
Long-Term Security Practices
- Regularly update and patch all software and systems
- Conduct security audits and penetration testing periodically
Patching and Updates
Mitel has released security advisories and bulletins addressing CVE-2018-9103. Ensure all affected systems are updated with the latest patches and follow best security practices.