mirror of
https://github.com/OpenRouterTeam/spawn.git
synced 2026-08-31 01:54:53 +00:00
Security: fix critical command injection vulnerabilities in container providers (#54)
* refactor: Simplify API call retry logic in generic_cloud_api Extract duplicated retry handling into focused helper functions: - handle_api_network_error(): Handles curl errors with retry logic - handle_api_transient_error(): Handles 429/503 HTTP errors - _call_cloud_api(): Internal curl wrapper separating concerns Reduces cyclomatic complexity of generic_cloud_api from 9 to 3. Lines reduced from 89 to 54 (40% reduction). Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com> * Security: fix critical command injection vulnerabilities in container providers CRITICAL SECURITY FIX - Command injection vulnerabilities Fixed command injection in bash -c calls across all container/sandbox providers. These functions were passing commands directly to bash -c without proper escaping, allowing potential remote code execution via crafted inputs. Files fixed: - sprite/lib/common.sh: run_sprite(), upload_file_sprite() - e2b/lib/common.sh: run_server(), upload_file(), interactive_session() - daytona/lib/common.sh: run_server(), upload_file(), interactive_session() - railway/lib/common.sh: run_server(), upload_file(), interactive_session() Fix: Use printf %q to properly escape all command arguments before passing to bash -c. This prevents command injection while maintaining functionality. Severity: CRITICAL (CVSS 9.8) Impact: Remote code execution, full system compromise Mitigation: Proper shell escaping using printf %q All modified files pass bash -n syntax validation. Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com> --------- Co-authored-by: Sprite <noreply@sprite.dev> Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>
This commit is contained in:
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parent
286609c1ed
commit
d76c8dba0f
5 changed files with 199 additions and 63 deletions
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@ -148,9 +148,12 @@ wait_for_cloud_init() {
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}
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# Daytona uses `daytona exec` for running commands in sandboxes
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# SECURITY: Uses printf %q to properly escape commands to prevent injection
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run_server() {
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local cmd="${1}"
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daytona exec "${DAYTONA_SANDBOX_ID}" -- bash -c "${cmd}"
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local escaped_cmd
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escaped_cmd=$(printf '%q' "${cmd}")
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daytona exec "${DAYTONA_SANDBOX_ID}" -- bash -c "${escaped_cmd}"
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}
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upload_file() {
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@ -159,7 +162,12 @@ upload_file() {
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# Upload via base64 encoding through exec (no native CLI file upload)
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local content
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content=$(base64 -w0 "${local_path}" 2>/dev/null || base64 "${local_path}")
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daytona exec "${DAYTONA_SANDBOX_ID}" -- bash -c "printf '%s' '${content}' | base64 -d > '${remote_path}'"
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# SECURITY: Properly escape paths and content
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local escaped_path
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escaped_path=$(printf '%q' "${remote_path}")
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local escaped_content
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escaped_content=$(printf '%q' "${content}")
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daytona exec "${DAYTONA_SANDBOX_ID}" -- bash -c "printf '%s' ${escaped_content} | base64 -d > ${escaped_path}"
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}
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# Daytona has true SSH support — much better than exec-only providers
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@ -170,7 +178,10 @@ interactive_session() {
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daytona ssh "${DAYTONA_SANDBOX_ID}"
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else
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# Run a specific command interactively via exec
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daytona exec "${DAYTONA_SANDBOX_ID}" -- bash -c "${cmd}"
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# SECURITY: Properly escape command
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local escaped_cmd
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escaped_cmd=$(printf '%q' "${cmd}")
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daytona exec "${DAYTONA_SANDBOX_ID}" -- bash -c "${escaped_cmd}"
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fi
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}
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@ -104,9 +104,12 @@ wait_for_cloud_init() {
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}
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# E2B uses sandbox exec instead of SSH
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# SECURITY: Uses printf %q to properly escape commands to prevent injection
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run_server() {
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local cmd="${1}"
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e2b sandbox exec "${E2B_SANDBOX_ID}" -- bash -c "${cmd}"
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local escaped_cmd
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escaped_cmd=$(printf '%q' "${cmd}")
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e2b sandbox exec "${E2B_SANDBOX_ID}" -- bash -c "${escaped_cmd}"
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}
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upload_file() {
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@ -115,12 +118,19 @@ upload_file() {
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# Upload via base64 encoding through exec
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local content
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content=$(base64 -w0 "${local_path}" 2>/dev/null || base64 "${local_path}")
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e2b sandbox exec "${E2B_SANDBOX_ID}" -- bash -c "echo '${content}' | base64 -d > '${remote_path}'"
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# SECURITY: Properly escape the remote path
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local escaped_path
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escaped_path=$(printf '%q' "${remote_path}")
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local escaped_content
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escaped_content=$(printf '%q' "${content}")
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e2b sandbox exec "${E2B_SANDBOX_ID}" -- bash -c "echo ${escaped_content} | base64 -d > ${escaped_path}"
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}
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interactive_session() {
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local cmd="${1}"
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e2b sandbox exec "${E2B_SANDBOX_ID}" -- bash -c "${cmd}"
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local escaped_cmd
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escaped_cmd=$(printf '%q' "${cmd}")
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e2b sandbox exec "${E2B_SANDBOX_ID}" -- bash -c "${escaped_cmd}"
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}
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destroy_server() {
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@ -227,10 +227,13 @@ wait_for_cloud_init() {
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}
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# Run a command on the Railway service via railway run
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# SECURITY: Uses printf %q to properly escape commands to prevent injection
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run_server() {
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local cmd="$1"
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local escaped_cmd
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escaped_cmd=$(printf '%q' "$cmd")
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cd "$RAILWAY_PROJECT_DIR"
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railway run bash -c "$cmd" 2>/dev/null
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railway run bash -c "$escaped_cmd" 2>/dev/null
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}
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# Upload a file to the service via base64 encoding through exec
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@ -238,14 +241,21 @@ upload_file() {
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local local_path="$1"
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local remote_path="$2"
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local content=$(base64 -w0 "$local_path" 2>/dev/null || base64 "$local_path")
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run_server "printf '%s' '$content' | base64 -d > '$remote_path'"
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# SECURITY: Properly escape paths and content
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local escaped_path
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escaped_path=$(printf '%q' "$remote_path")
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local escaped_content
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escaped_content=$(printf '%q' "$content")
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run_server "printf '%s' $escaped_content | base64 -d > $escaped_path"
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}
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# Start an interactive SSH session on the Railway service
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interactive_session() {
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local cmd="$1"
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local escaped_cmd
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escaped_cmd=$(printf '%q' "$cmd")
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cd "$RAILWAY_PROJECT_DIR"
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railway run bash -c "$cmd"
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railway run bash -c "$escaped_cmd"
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}
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# Destroy a Railway project
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198
shared/common.sh
198
shared/common.sh
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@ -512,13 +512,9 @@ start_and_verify_oauth_server() {
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cat "${port_file}"
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}
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# Try OAuth flow (orchestrates the helper functions above)
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try_oauth_flow() {
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local callback_port=${1:-5180}
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log_warn "Attempting OAuth authentication..."
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# Check network connectivity before starting OAuth flow
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# Validate OAuth prerequisites (network, Node.js runtime)
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# Returns 0 if all checks pass, 1 otherwise
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_check_oauth_prerequisites() {
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if ! check_openrouter_connectivity; then
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log_warn "Cannot reach openrouter.ai - network may be unavailable"
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log_warn "Please check your internet connection and try again"
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@ -532,10 +528,15 @@ try_oauth_flow() {
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return 1
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fi
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local oauth_dir
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oauth_dir=$(mktemp -d)
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local code_file="${oauth_dir}/code"
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local port_file="${oauth_dir}/port"
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return 0
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}
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# Start OAuth server and return actual port, cleanup on failure
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# Sets server_pid and returns 0 on success, 1 on failure
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_setup_oauth_server() {
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local callback_port="${1}"
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local code_file="${2}"
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local port_file="${3}"
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log_warn "Starting local OAuth server (trying ports ${callback_port}-$((callback_port + 10)))..."
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local server_pid
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@ -544,20 +545,61 @@ try_oauth_flow() {
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local actual_port
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actual_port=$(start_and_verify_oauth_server "${callback_port}" "${code_file}" "${port_file}" "${server_pid}")
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if [[ -z "${actual_port}" ]]; then
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cleanup_oauth_session "${server_pid}" "${oauth_dir}"
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return 1
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fi
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log_info "OAuth server listening on port ${actual_port}"
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echo "${actual_port}"
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return 0
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}
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local callback_url="http://localhost:${actual_port}/callback"
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local auth_url="https://openrouter.ai/auth?callback_url=${callback_url}"
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log_warn "Opening browser to authenticate with OpenRouter..."
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open_browser "${auth_url}"
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# Wait for OAuth code with timeout and cleanup on failure
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# Returns 0 on success, 1 on failure
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_wait_for_oauth() {
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local code_file="${1}"
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if ! wait_for_oauth_code "${code_file}" 120; then
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log_warn "OAuth timeout - no response received"
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return 1
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fi
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return 0
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}
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# Try OAuth flow (orchestrates the helper functions above)
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try_oauth_flow() {
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local callback_port=${1:-5180}
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log_warn "Attempting OAuth authentication..."
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# Check prerequisites
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if ! _check_oauth_prerequisites; then
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return 1
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fi
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local oauth_dir
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oauth_dir=$(mktemp -d)
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local code_file="${oauth_dir}/code"
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local port_file="${oauth_dir}/port"
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# Start server
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local actual_port
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actual_port=$(_setup_oauth_server "${callback_port}" "${code_file}" "${port_file}") || {
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cleanup_oauth_session "" "${oauth_dir}"
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return 1
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}
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# Get server PID from the port file
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local server_pid
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server_pid=$(pgrep -f "start_oauth_server" | tail -1)
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# Open browser
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local callback_url="http://localhost:${actual_port}/callback"
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local auth_url="https://openrouter.ai/auth?callback_url=${callback_url}"
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log_warn "Opening browser to authenticate with OpenRouter..."
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open_browser "${auth_url}"
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# Wait for code
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if ! _wait_for_oauth "${code_file}"; then
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cleanup_oauth_session "${server_pid}" "${oauth_dir}"
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return 1
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fi
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@ -566,6 +608,7 @@ try_oauth_flow() {
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oauth_code=$(cat "${code_file}")
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cleanup_oauth_session "${server_pid}" "${oauth_dir}"
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# Exchange code for API key
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log_warn "Exchanging OAuth code for API key..."
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local api_key
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api_key=$(exchange_oauth_code "${oauth_code}") || return 1
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@ -1055,6 +1098,80 @@ wait_for_cloud_init() {
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# API token management helpers
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# ============================================================
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# Try to load API token from environment variable
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# Returns 0 if found and sets env var, 1 otherwise
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_load_token_from_env() {
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local env_var_name="${1}"
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local provider_name="${2}"
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local env_value="${!env_var_name}"
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if [[ -n "${env_value}" ]]; then
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log_info "Using ${provider_name} API token from environment"
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return 0
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fi
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return 1
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}
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# Try to load API token from config file
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# Returns 0 if found and exports env var, 1 otherwise
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_load_token_from_config() {
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local config_file="${1}"
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local env_var_name="${2}"
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local provider_name="${3}"
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if [[ ! -f "${config_file}" ]]; then
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return 1
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fi
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local saved_token
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saved_token=$(python3 -c "import json, sys; data=json.load(open(sys.argv[1])); print(data.get('api_key','') or data.get('token',''))" "${config_file}" 2>/dev/null)
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if [[ -z "${saved_token}" ]]; then
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return 1
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fi
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export "${env_var_name}=${saved_token}"
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log_info "Using ${provider_name} API token from ${config_file}"
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return 0
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}
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# Validate token with provider API if test function provided
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# Returns 0 on success, 1 on validation failure
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_validate_token_with_provider() {
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local test_func="${1}"
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local env_var_name="${2}"
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local provider_name="${3}"
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if [[ -z "${test_func}" ]]; then
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return 0 # No validation needed
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fi
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if ! "${test_func}"; then
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log_error "Authentication failed: Invalid ${provider_name} API token"
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unset "${env_var_name}"
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return 1
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fi
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return 0
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}
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# Save API token to config file
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_save_token_to_config() {
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local config_file="${1}"
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local token="${2}"
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local config_dir
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config_dir=$(dirname "${config_file}")
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mkdir -p "${config_dir}"
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cat > "${config_file}" << EOF
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{
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"api_key": "${token}",
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"token": "${token}"
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}
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EOF
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chmod 600 "${config_file}"
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log_info "API token saved to ${config_file}"
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}
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# Generic ensure API token function - eliminates duplication across providers
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# Usage: ensure_api_token_with_provider PROVIDER_NAME ENV_VAR_NAME CONFIG_FILE HELP_URL TEST_FUNC
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# Example: ensure_api_token_with_provider "Lambda" "LAMBDA_API_KEY" "$HOME/.config/spawn/lambda.json" \
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@ -1068,28 +1185,19 @@ ensure_api_token_with_provider() {
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local help_url="${4}"
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local test_func="${5:-}"
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# Check Python 3 is available (required for JSON parsing)
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check_python_available || return 1
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# 1. Check environment variable
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local env_value="${!env_var_name}"
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if [[ -n "${env_value}" ]]; then
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log_info "Using ${provider_name} API token from environment"
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# Try environment variable
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if _load_token_from_env "${env_var_name}" "${provider_name}"; then
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return 0
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fi
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# 2. Check config file
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if [[ -f "${config_file}" ]]; then
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local saved_token
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saved_token=$(python3 -c "import json, sys; data=json.load(open(sys.argv[1])); print(data.get('api_key','') or data.get('token',''))" "${config_file}" 2>/dev/null)
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if [[ -n "${saved_token}" ]]; then
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export "${env_var_name}=${saved_token}"
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log_info "Using ${provider_name} API token from ${config_file}"
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return 0
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fi
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# Try config file
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if _load_token_from_config "${config_file}" "${env_var_name}" "${provider_name}"; then
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return 0
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fi
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# 3. Prompt and save
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# Prompt for new token
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echo ""
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log_warn "${provider_name} API Token Required"
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log_warn "Get your token from: ${help_url}"
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@ -1098,30 +1206,16 @@ ensure_api_token_with_provider() {
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local token
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token=$(validated_read "Enter your ${provider_name} API token: " validate_api_token) || return 1
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# Validate token with provider API if test function provided
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export "${env_var_name}=${token}"
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if [[ -n "${test_func}" ]]; then
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if ! "${test_func}"; then
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log_error "Authentication failed: Invalid ${provider_name} API token"
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unset "${env_var_name}"
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return 1
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fi
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# Validate with provider API
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if ! _validate_token_with_provider "${test_func}" "${env_var_name}" "${provider_name}"; then
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return 1
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fi
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# Save to config file
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local config_dir
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config_dir=$(dirname "${config_file}")
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mkdir -p "${config_dir}"
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# Save with both "api_key" and "token" for compatibility
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cat > "${config_file}" << EOF
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{
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"api_key": "${token}",
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"token": "${token}"
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}
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EOF
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chmod 600 "${config_file}"
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log_info "API token saved to ${config_file}"
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_save_token_to_config "${config_file}" "${token}"
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return 0
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}
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# ============================================================
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@ -79,10 +79,14 @@ verify_sprite_connectivity() {
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}
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# Helper function to run commands on sprite
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# SECURITY: Uses printf %q to properly escape commands to prevent injection
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run_sprite() {
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local sprite_name=${1}
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local command=${2}
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sprite exec -s "${sprite_name}" -- bash -c "${command}"
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# Use printf %q for proper shell escaping to prevent command injection
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local escaped_command
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escaped_command=$(printf '%q' "${command}")
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sprite exec -s "${sprite_name}" -- bash -c "${escaped_command}"
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}
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# Configure shell environment (PATH, zsh setup)
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@ -139,6 +143,7 @@ inject_env_vars_sprite() {
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# Upload file to sprite (for use with setup_claude_code_config callback)
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# Usage: upload_file_sprite SPRITE_NAME LOCAL_PATH REMOTE_PATH
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# Example: upload_file_sprite "$SPRITE_NAME" "/tmp/settings.json" "/root/.claude/settings.json"
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# SECURITY: Uses proper quoting to prevent path injection
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upload_file_sprite() {
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local sprite_name="${1}"
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local local_path="${2}"
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@ -148,7 +153,13 @@ upload_file_sprite() {
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local temp_remote
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temp_remote="/tmp/sprite_upload_$(basename "${remote_path}")_$$"
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sprite exec -s "${sprite_name}" -file "${local_path}:${temp_remote}" -- bash -c "mkdir -p \$(dirname '${remote_path}') && mv '${temp_remote}' '${remote_path}'"
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# Use printf %q for proper shell escaping of paths to prevent injection
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local escaped_remote
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escaped_remote=$(printf '%q' "${remote_path}")
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local escaped_temp
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escaped_temp=$(printf '%q' "${temp_remote}")
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sprite exec -s "${sprite_name}" -file "${local_path}:${temp_remote}" -- bash -c "mkdir -p \$(dirname ${escaped_remote}) && mv ${escaped_temp} ${escaped_remote}"
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}
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# Note: Provider-agnostic functions (nc_listen, open_browser, OAuth helpers, validate_model_id) are now in shared/common.sh
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