Buffer Overflow in GeoWebPlayer Websocket Server

Executive Summary

This vulnerability exists in GeoWebPlayer, an addon for GeoVision software that creates a websocket server to enhance web-interface capabilities. The websocket server accepts commands from localhost, including one called 'connectionInfo' which provides camera connection details. The handler for this command, 'handle_connection_info', improperly copies attacker-controlled JSON strings into fixed-size buffers without enforcing length limits, leading to multiple instances of buffer overflow.

Useful 0 Not Useful 0

Detection Guidance

This vulnerability involves a buffer overflow in the GeoWebPlayer Websocket server's handling of the connectionInfo command, which accepts JSON input from localhost. Detection would involve monitoring or testing the Websocket server for improper handling of oversized or malformed JSON strings in the username field.

Since the vulnerable server listens on localhost and processes JSON commands, one approach to detect the vulnerability is to attempt sending crafted JSON payloads with oversized username fields to the Websocket server and observe if it crashes or behaves unexpectedly.

Specific commands to detect this vulnerability are not provided in the available resources. However, a general method could be using tools like curl or websocket clients to connect to the localhost Websocket server and send JSON messages with an excessively long username field to test for buffer overflow behavior.

• Use a Websocket client to connect to the GeoWebPlayer Websocket server on localhost.
• Send a JSON command similar to: {"command": "connectionInfo", "username": "A" * 1000} where the username field is a very long string.
• Monitor the GeoWebPlayer process for crashes, memory errors, or abnormal behavior.
• Check system logs or application logs for errors related to the Websocket server.

Useful 0 Not Useful 0

Impact Analysis

The buffer overflow vulnerability in the 'handle_connection_info' function can be exploited to cause serious impacts including complete compromise of confidentiality, integrity, and availability of the affected system. The CVSS score of 8.3 indicates a high severity, meaning an attacker could potentially execute arbitrary code, cause denial of service, or gain unauthorized access by exploiting this flaw.

Useful 0 Not Useful 0

Compliance Impact

The vulnerability in GeoWebPlayer's websocket server allows for buffer overflow attacks that can lead to arbitrary code execution, impacting confidentiality, integrity, and availability of the system.

Such impacts on confidentiality and integrity could potentially lead to non-compliance with common standards and regulations like GDPR and HIPAA, which require protection of sensitive data and system integrity.

However, the provided information does not explicitly state the direct effects on compliance with these standards.

Useful 0 Not Useful 0

Mitigation Strategies

To mitigate this vulnerability, you should apply the patch released by the vendor on April 28, 2026, which addresses the buffer overflow issues in GeoWebPlayer version 1.1.1.0.

Additionally, consider restricting access to the GeoWebPlayer websocket server to trusted hosts only, as the vulnerable commands are accepted from localhost.

Useful 0 Not Useful 0