# Download of Code Without Integrity Check (CWE-494)

The product downloads source code or an executable from a remote location and executes it without verifying the authenticity and integrity of the code.

- Prevalence: Medium No Shoulder rules
- Impact: Medium OWASP Top 10 #8
- Prevention: See MITRE External reference

**OWASP:** Software and Data Integrity Failures (A08:2021-Software and Data Integrity Failures) - #8

## Description

When code is downloaded and executed without integrity verification, attackers who can intercept the download can inject malicious code. This is especially dangerous for auto-update mechanisms.

## Prevention

## Consequences

- Execute Unauthorized Code
- Modify Application Data

## Mitigations

- Verify digital signatures on downloaded code
- Use HTTPS with certificate pinning for downloads
- Implement hash verification for downloaded files