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Code Review
This pull request introduces a testbed for reproducing and verifying the Traefik StripPrefix Middleware Authentication Bypass vulnerability (CVE-2026-48020). It includes a Docker Compose setup, a mock Python backend, a Traefik dynamic configuration, and a README guide. The review feedback points out a hardcoded local directory path in the README, a markdown syntax error in a code block, and a potential false positive in the mock backend's path checking logic when query parameters are present.
| ### Start the Testbed | ||
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| ```bash | ||
| cd /usr/local/google/home/dyeddala/tsunami/security-testbeds/traefik/CVE-2026-48020 |
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The path to the testbed directory is hardcoded to a specific user's local home directory (/usr/local/google/home/dyeddala/...). This should be updated to a relative path so that the instructions work for any user.
| cd /usr/local/google/home/dyeddala/tsunami/security-testbeds/traefik/CVE-2026-48020 | |
| cd traefik/CVE-2026-48020 |
| --scan-results-local-output-format=JSON \ | ||
| --scan-results-local-output-filename="/tmp/tsunami-out-${port}.json" 2>&1 | grep "# of detected vulnerability:" | ||
| done | ||
| `` |
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The code block is closed with only two backticks instead of three, which causes a markdown rendering syntax error. Please add a third backtick to properly close the code block.
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| def do_GET(self): | ||
| print(f"DEBUG: Request line: {self.requestline}, path: {self.path}") | ||
| if "/admin" in self.path or "/internal" in self.path: |
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The current path check uses "/admin" in self.path, which can lead to false positives if the string "/admin" or "/internal" appears in the query parameters (e.g., ?file=/admin) of a public request. Splitting the path by ? to exclude query parameters will make the verification more robust.
| if "/admin" in self.path or "/internal" in self.path: | |
| if "/admin" in self.path.split("?")[0] or "/internal" in self.path.split("?")[0]: |
Please review.