Denial of Service in ObserverIP 1.4.0.1 via IP Field Overflow

Executive Summary

ObserverIP Scan Tool version 1.4.0.1 has a denial of service vulnerability that allows local attackers to crash the application.

This happens when an attacker submits an excessively long string—specifically, a 2000-byte buffer of repeated characters—into the IP input field and triggers a search operation.

The application crashes as a result of processing this overly long input.

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Impact Analysis

This vulnerability can cause the ObserverIP Scan Tool application to crash, resulting in a denial of service.

An attacker with local access can exploit this by submitting a very long string in the IP input field, disrupting normal operations.

This may lead to downtime or interruption of services relying on this tool.

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Detection Guidance

This vulnerability involves the ObserverIP Scan Tool 1.4.0.1 crashing when a local attacker inputs an excessively long string (around 2000 bytes) into the IP input field. Detection would involve monitoring for application crashes or abnormal behavior when the IP input field is used.

Since the vulnerability is triggered by a local input of a very long string, detection on the network level is unlikely. Instead, monitoring application logs or system logs for crashes or errors related to the ObserverIP Scan Tool may help identify exploitation attempts.

No specific commands or network detection methods are provided in the available information.

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Mitigation Strategies

Immediate mitigation steps include restricting local access to the ObserverIP Scan Tool to trusted users only, as the vulnerability requires local attacker interaction.

Avoid inputting excessively long strings into the IP input field to prevent triggering the denial of service condition.

Monitor for application crashes and consider disabling or uninstalling the vulnerable version (1.4.0.1) of the ObserverIP Scan Tool until a patch or update is available.

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