CVE-2019-1837 : Vulnerability Insights and Analysis
Learn about CVE-2019-1837, a vulnerability in Cisco Unified Communications Manager that allows unauthenticated attackers to trigger a denial of service condition on the management GUI. Find out the impacted systems, exploitation details, and mitigation steps.
Cisco Unified Communications Manager Denial of Service Vulnerability
Understanding CVE-2019-1837
This CVE involves a vulnerability in the User Data Services (UDS) API of Cisco Unified Communications Manager, potentially leading to a denial of service (DoS) attack.
What is CVE-2019-1837?
The vulnerability in the User Data Services (UDS) API of Cisco Unified Communications Manager allows an unauthenticated attacker to trigger a DoS condition on the management GUI by sending specially crafted requests.
The Impact of CVE-2019-1837
The vulnerability could result in a disruption of the management GUI, potentially requiring manual intervention to restore normal operation. Attackers can terminate the A Cisco DB service, hindering administrative access to the Unified CM management GUI.
Technical Details of CVE-2019-1837
Vulnerability Description
The vulnerability arises from improper validation of input parameters in UDS API requests, enabling attackers to exploit the flaw.
Affected Systems and Versions
- Product: Cisco Unified Communications Manager
- Versions Affected: 10.5, 11.5, 12.0, 12.5
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: None
- User Interaction: None
- Impact: Medium
- CVSS Base Score: 5.3
Mitigation and Prevention
Immediate Steps to Take
- Apply the latest security patches provided by Cisco.
- Monitor Cisco's security advisories for updates and guidance.
Long-Term Security Practices
- Regularly update and patch all software and systems.
- Implement network segmentation and access controls to limit exposure.
Patching and Updates
- Ensure all affected systems are updated with the latest patches from Cisco to mitigate the vulnerability.