Executive Summary

CVE-2019-25624 is a denial of service vulnerability found in Liquid Studio version 2.17 and earlier. It occurs because the application does not properly handle malformed input provided through the keyboard interface during runtime. Local attackers can exploit this by entering arbitrary or specially crafted characters, which causes the application to become unresponsive or crash abnormally.

The root cause relates to unchecked input for loop conditions (CWE-606), which leads to improper input handling and ultimately a denial of service condition.

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Impact Analysis

This vulnerability can impact you by causing the Liquid Studio application to crash or become unresponsive when malformed input is entered. This denial of service condition can disrupt your workflow or any automated processes relying on the application, leading to potential downtime or loss of productivity.

Since the attack requires local access and low complexity, an attacker with physical or local access to the system can trigger this issue without needing special privileges or user interaction.

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Compliance Impact

I don't know

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Detection Guidance

[{'type': 'paragraph', 'content': 'This vulnerability can be detected by attempting to reproduce the denial of service condition on the affected Liquid Studio 2.17 application by providing malformed input through the keyboard interface.'}, {'type': 'paragraph', 'content': 'A proof-of-concept exploit involves inputting a crafted payload consisting of repeated characters (for example, "A" repeated 10 times) into the application during runtime, which causes the application to become unresponsive or crash.'}, {'type': 'paragraph', 'content': 'One practical approach is to run the provided Python script from the exploit database that generates a file with the payload (named "exp.txt") and then input or feed this payload to the application to observe if it crashes.'}, {'type': 'paragraph', 'content': 'Since the vulnerability is triggered by keyboard input, manual testing by entering repeated or malformed characters during application use can also help detect the issue.'}] [1, 3]

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Mitigation Strategies

Immediate mitigation steps include restricting local access to the Liquid Studio 2.17 application to trusted users only, as the vulnerability requires local attacker interaction.

Avoid entering arbitrary or malformed input through the keyboard interface during application runtime to prevent triggering the denial of service condition.

Monitor the application for unresponsiveness or abnormal termination and restart it if necessary.

Since no official patch or update information is provided in the context, consider contacting the vendor or checking for updates that address this vulnerability.

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