CVE-2017-3837 : Vulnerability Insights and Analysis

A vulnerability has been discovered in the Web Bridge interface of Cisco Meeting Server (CMS), previously known as Acano Conferencing Server, allowing an authenticated remote attacker to retrieve memory contents and potentially cause a denial of service (DoS) situation.

Understanding CVE-2017-3837

What is CVE-2017-3837?

An HTTP Packet Processing vulnerability in the Web Bridge interface of Cisco Meeting Server (CMS) could lead to the exposure of confidential information and a DoS condition.

The Impact of CVE-2017-3837

The vulnerability enables an authenticated attacker to access memory contents, potentially leading to data exposure and application crashes, resulting in a DoS situation.

Technical Details of CVE-2017-3837

Vulnerability Description

The vulnerability in the Web Bridge interface of Cisco Meeting Server allows an authenticated remote attacker to retrieve memory contents.
This could expose confidential information and potentially crash the application, causing a denial of service.

Affected Systems and Versions

All releases prior to version 2.1.2 of Cisco Meeting Server are affected.
Known affected releases include 2.0, 2.0.7, and 2.1, while the fixed release is 2.1.2.

Exploitation Mechanism

The attacker needs valid authentication and an active session with the Web Bridge to exploit this vulnerability.

Mitigation and Prevention

Immediate Steps to Take

Update Cisco Meeting Server to version 2.1.2 or later to mitigate the vulnerability.
Monitor for any unauthorized access or unusual activities on the Web Bridge interface.

Long-Term Security Practices

Implement strong authentication mechanisms to prevent unauthorized access.
Regularly review and apply security patches and updates to the Cisco Meeting Server.

Patching and Updates

Stay informed about security advisories from Cisco and promptly apply recommended patches to ensure system security.