Executive Summary

Alloksoft Video Joiner version 4.6.1217 has a buffer overflow vulnerability. This means that when a local attacker inputs a specially crafted malicious string into the License Name field, they can cause the program to overwrite parts of its memory. By doing this, the attacker can execute arbitrary code on the affected system.

The attack involves crafting a payload that overwrites the Structured Exception Handler (SEH) and includes shellcode. When the application processes this malicious license registration input, the attacker’s code can run with the privileges of the application.

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Impact Analysis

This vulnerability can allow a local attacker to execute arbitrary code on your system with the privileges of the Alloksoft Video Joiner application. This could lead to unauthorized actions such as installing malware, stealing data, or taking control of the affected machine.

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Compliance Impact

The provided information does not include any details about how this vulnerability impacts compliance with common standards and regulations such as GDPR or HIPAA.

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Executive Summary

CVE-2018-25315 is a buffer overflow vulnerability in Alloksoft Video Joiner version 4.6.1217. It occurs when the application processes a maliciously crafted string in the License Name field during license registration.

Local attackers can exploit this flaw by supplying a specially crafted input that overwrites the structured exception handler (SEH) and injects shellcode, allowing them to execute arbitrary code on the affected system.

The exploit involves manipulating the License Name field with a payload that triggers the buffer overflow, demonstrated by proof-of-concept code that can execute commands such as opening the Windows calculator.

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Impact Analysis

This vulnerability allows a local attacker to execute arbitrary code on the affected system with the privileges of the application.

Successful exploitation can lead to full compromise of the system, including unauthorized access, data manipulation, or installation of malicious software.

Because the exploit requires local access, the attacker must have some level of access to the system, but once exploited, the impact is severe due to the high CVSS score (8.6).

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Detection Guidance

This vulnerability is a local buffer overflow in Alloksoft Video Joiner 4.6.1217 triggered by a malicious string in the License Name field. Detection involves verifying if the vulnerable version of the software is installed and monitoring for suspicious activity related to the License Name input.

Since the exploit requires local interaction with the application, network detection is limited. However, you can check for the presence of the vulnerable application version on your system.

• On Windows, use the command: `wmic product where "name like '%Alloksoft Video Joiner%'" get name, version` to identify the installed version.
• Monitor application logs or usage for unusual inputs or crashes related to the License Name field.

There are no specific network commands or signatures mentioned for detecting exploitation attempts, as the attack is local and requires user interaction.

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Mitigation Strategies

To mitigate this vulnerability, immediately stop using Alloksoft Video Joiner version 4.6.1217 or any earlier vulnerable versions.

Avoid entering untrusted or suspicious data into the License Name field, as this is the vector for exploitation.

If possible, apply any available patches or updates from the vendor that address this buffer overflow vulnerability.

Restrict local access to the system to trusted users only, since the exploit requires local interaction.

Monitor the system for crashes or abnormal behavior of the application that could indicate exploitation attempts.

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