Memory Exhaustion in Open-Xchange Web Server

Executive Summary

This vulnerability allows an attacker to send a specially crafted web request to the internal web server, which causes the server to allocate unlimited memory.

This excessive memory allocation can lead to a denial of service condition, making the server unavailable.

It is important to note that the internal web server is disabled by default.

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Impact Analysis

The primary impact of this vulnerability is a denial of service (DoS) condition.

An attacker exploiting this issue can cause the internal web server to consume excessive memory resources, potentially crashing or severely degrading the performance of the affected system.

Since the internal web server is disabled by default, the risk is reduced unless it has been explicitly enabled.

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Mitigation Strategies

Since the internal web server is disabled by default, an immediate mitigation step is to ensure that it remains disabled if not needed.

Avoid enabling the internal web server unless absolutely necessary, as it is vulnerable to an attacker sending web requests that cause unlimited memory allocation leading to denial of service.

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