Executive Summary

CVE-2020-37162 is a buffer overflow vulnerability in Wedding Slideshow Studio version 1.36. It occurs in the registration key input field where an attacker can supply a specially crafted payload of 1608 bytes. This causes a stack-based buffer overflow that overwrites memory, allowing the attacker to execute arbitrary code.

The vulnerability requires local access and user interaction, as the attacker must input the malicious registration key. The flaw exploits the lack of modern memory protections in a loaded DLL, enabling the execution of attacker-controlled commands.

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Impact Analysis

This vulnerability can have severe impacts including unauthorized code execution on the affected system. An attacker who successfully exploits this flaw can run arbitrary commands, potentially leading to full system compromise.

• Loss of confidentiality by accessing sensitive data.
• Loss of integrity by modifying or corrupting data.
• Loss of availability by disrupting normal operation of the software or system.

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Compliance Impact

I don't know

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Detection Guidance

This vulnerability is a local buffer overflow in the Wedding Slideshow Studio 1.36 application, specifically triggered by providing a specially crafted registration key input of 1608 bytes. Detection involves checking if the application is present and if the registration key input field has been supplied with unusually long or malformed data.

Since the exploit requires local user interaction and pasting a crafted payload into the registration key field, network detection is unlikely. Instead, detection can focus on monitoring the application usage and scanning for the presence of the vulnerable version (1.36 or earlier).

Suggested commands or steps to detect the vulnerability include:

• Verify the installed version of Wedding Slideshow Studio to confirm if it is version 1.36 or earlier.
• Use file integrity or hash checking tools on the executable to identify the vulnerable version.
• Monitor application logs or user activity for attempts to input unusually long registration keys (around 1608 bytes).
• On Windows, use tools like Process Monitor (ProcMon) to watch for abnormal behavior or crashes related to the registration key input.
• No specific network commands or signatures are available due to the local and user-interactive nature of the exploit.

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Mitigation Strategies

Immediate mitigation steps for this vulnerability include:

• Avoid using or running Wedding Slideshow Studio version 1.36 or earlier until a patch or update is available.
• Do not enter or accept registration keys from untrusted sources, especially unusually long or suspicious inputs.
• Restrict local user access to the application to trusted users only, minimizing the risk of malicious payload execution.
• Monitor the system for crashes or abnormal behavior related to the application, which may indicate exploitation attempts.
• If possible, apply application whitelisting or sandboxing to limit the impact of potential exploitation.
• Contact the software vendor or check official sources for patches or updates addressing this vulnerability.

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