T03 · Remote Payload Retrieval and Execution
Error
- Location
README.md:47- Finding
Unpinned Remote Script Retrieval and Immediate Shell Execution
- Content
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/dev/null 2>&1; then git clone --depth=1 "$REPO_URL" "$TMP_DIR/repo" >/dev/null 2>&1 SOURCE_DIR="$TMP_DIR/repo" else echo "git is required for installation." >&2 exit 1 fi fi ``` ### Technical Analysis The installation instructions download a script from the mutable `main` branch of a personal GitHub repository and pipe it directly to `bash`. There is no commit pinning, release-version pinning, checksum verification, signature validation, or opportunity for inspection before execution. The fetched script then performs a shallow clone using the repository's default branch, creating a second mutable supply-chain boundary. Although the copy of the installer included in the audited artifact does not contain an overt malicious payload, the command documented for users executes whatever content is hosted remotely at execution time. That content can differ from the version reviewed in this audit. ### Attack Path 1. An attacker compromises the repository, its maintainer account, a deployment credential, or another mechanism capable of modifying the remote branch. 2. The attacker replaces the installer on `main` with a malicious shell payload. 3. A user follows the documented one-command installation procedure. 4. `curl` downloads the modified script and s ...[truncated 876 chars]- Remediation
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