CVE-2017-12337 : Vulnerability Insights and Analysis
Learn about CVE-2017-12337, a security flaw in Cisco Voice Operating System upgrade process allowing unauthorized access. Find mitigation steps and prevention measures here.
A security flaw in the upgrade process of Cisco collaboration products operating on the Cisco Voice Operating System software platform could allow unauthorized access by remote attackers.
Understanding CVE-2017-12337
What is CVE-2017-12337?
This vulnerability arises during a refresh upgrade (RU) or Prime Collaboration Deployment (PCD) migration on affected devices, potentially granting unauthorized elevated access to attackers.
The Impact of CVE-2017-12337
The vulnerability could lead to unauthorized access to targeted devices by remote attackers, compromising the affected system completely.
Technical Details of CVE-2017-12337
Vulnerability Description
- Vulnerability in the upgrade mechanism of Cisco collaboration products
- Unauthorized elevated access to affected devices
- Engineering flag remains active after successful upgrade
Affected Systems and Versions
- Product: Cisco Voice Operating System
- Version: Cisco Voice Operating System
Exploitation Mechanism
- Vulnerability occurs during refresh upgrade or PCD migration
- Engineering flag enables root access with a known password
Mitigation and Prevention
Immediate Steps to Take
- Upgrade affected devices using standard upgrade methods
- Implement Engineering Special Releases, service updates, or new major releases
Long-Term Security Practices
- Regularly update and patch affected systems
- Monitor for unauthorized access and unusual system behavior
Patching and Updates
- Install Engineering Special Releases using standard upgrade methods to remediate the vulnerability