Firefox for Android Downloads Component Spoofing

Executive Summary

This vulnerability is a spoofing issue in Firefox for Android's Downloads component. It occurs when long filenames are truncated in download completion notifications, hiding the file extension. This makes it difficult for users to identify the actual file type from the notification.

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Detection Guidance

This vulnerability is specific to Firefox for Android and involves filename truncation in download notifications. To detect it, check if your Firefox for Android version is below 157. If you see download notifications where long filenames obscure file extensions, the vulnerability may be present.

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Impact Analysis

Users may be tricked into opening malicious files if they cannot see the file extension in notifications. For example, a file named 'document.pdf.exe' could appear as 'document.pdf' if truncated, leading to unintended execution of harmful software.

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Compliance Impact

This vulnerability does not directly affect compliance with GDPR, HIPAA, or similar standards. The issue involves misleading filename extensions in download notifications, which could potentially lead to users downloading malicious files unknowingly. However, there is no evidence that this vulnerability results in unauthorized data access, disclosure, or other compliance violations.

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Mitigation Strategies

Update Firefox for Android to version 157 or later to apply the fix. Avoid downloading files with very long names until the update is applied. Check notification behavior for truncated filenames as a potential indicator.

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