milliways-infosec/AikidoSec-safe-chain
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Validate ENV VAR

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This commit is contained in:
Reinier Criel 2026-04-10 15:38:51 -07:00
parent 98dcda78da
commit df8be031cb
4 changed files with 55 additions and 46 deletions
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26
install-scripts/install-safe-chain.ps1
View file

@ -8,19 +8,21 @@ param(
)
$Version = $env:SAFE_CHAIN_VERSION # Will be fetched from latest release if not set
# Validate SAFE_CHAIN_DIR before use
if ($env:SAFE_CHAIN_DIR) {
if (-not [System.IO.Path]::IsPathRooted($env:SAFE_CHAIN_DIR)) {
Write-Host "[ERROR] SAFE_CHAIN_DIR must be an absolute path, got: $($env:SAFE_CHAIN_DIR)" -ForegroundColor Red; exit 1
}
if ($env:SAFE_CHAIN_DIR -match '\.\.') {
Write-Host "[ERROR] SAFE_CHAIN_DIR must not contain path traversal (..)" -ForegroundColor Red; exit 1
}
if ($env:SAFE_CHAIN_DIR -match '^[A-Za-z]:[/\\]?$' -or $env:SAFE_CHAIN_DIR -eq '/') {
Write-Host "[ERROR] SAFE_CHAIN_DIR cannot be a root or drive-root directory" -ForegroundColor Red; exit 1
}
}
$SafeChainBase = if ($env:SAFE_CHAIN_DIR) { $env:SAFE_CHAIN_DIR } else { Join-Path $env:USERPROFILE ".safe-chain" }
# Validate $SafeChainBase before any filesystem operations
if (-not [System.IO.Path]::IsPathRooted($SafeChainBase)) {
Write-Host "[ERROR] SAFE_CHAIN_DIR must be an absolute path, got: $SafeChainBase" -ForegroundColor Red; exit 1
}
if ($SafeChainBase -match '\.\.') {
Write-Host "[ERROR] SAFE_CHAIN_DIR must not contain path traversal (..)" -ForegroundColor Red; exit 1
}
if ($SafeChainBase -match '^[A-Za-z]:[/\\]?$' -or $SafeChainBase -eq '/') {
Write-Host "[ERROR] SAFE_CHAIN_DIR cannot be a root or drive-root directory" -ForegroundColor Red; exit 1
}
$InstallDir = Join-Path $SafeChainBase "bin"
$RepoUrl = "https://github.com/AikidoSec/safe-chain"

24
install-scripts/install-safe-chain.sh
View file

@ -8,20 +8,22 @@ set -e # Exit on error
# Configuration
VERSION="${SAFE_CHAIN_VERSION:-}" # Will be fetched from latest release if not set
SAFE_CHAIN_BASE="${SAFE_CHAIN_DIR:-${HOME}/.safe-chain}"
# Validate SAFE_CHAIN_BASE before any filesystem operations
case "${SAFE_CHAIN_BASE}" in
/*) ;;
*) printf '[ERROR] SAFE_CHAIN_DIR must be an absolute path, got: %s\n' "${SAFE_CHAIN_BASE}" >&2; exit 1 ;;
esac
case "${SAFE_CHAIN_BASE}" in
*../*|*/..*|..) printf '[ERROR] SAFE_CHAIN_DIR must not contain path traversal (..)\n' >&2; exit 1 ;;
esac
if [ "${SAFE_CHAIN_BASE}" = "/" ]; then
printf '[ERROR] SAFE_CHAIN_DIR cannot be the root directory\n' >&2; exit 1
# Validate SAFE_CHAIN_DIR before use
if [ -n "${SAFE_CHAIN_DIR}" ]; then
case "${SAFE_CHAIN_DIR}" in
/*) ;;
*) printf '[ERROR] SAFE_CHAIN_DIR must be an absolute path, got: %s\n' "${SAFE_CHAIN_DIR}" >&2; exit 1 ;;
esac
case "${SAFE_CHAIN_DIR}" in
*../*|*/..*|..) printf '[ERROR] SAFE_CHAIN_DIR must not contain path traversal (..)\n' >&2; exit 1 ;;
esac
if [ "${SAFE_CHAIN_DIR}" = "/" ]; then
printf '[ERROR] SAFE_CHAIN_DIR cannot be the root directory\n' >&2; exit 1
fi
fi
SAFE_CHAIN_BASE="${SAFE_CHAIN_DIR:-${HOME}/.safe-chain}"
INSTALL_DIR="${SAFE_CHAIN_BASE}/bin"
REPO_URL="https://github.com/AikidoSec/safe-chain"

26
install-scripts/uninstall-safe-chain.ps1
View file

@ -4,19 +4,21 @@
# Use HOME on Unix, USERPROFILE on Windows (PowerShell Core is cross-platform)
$HomeDir = if ($env:HOME) { $env:HOME } else { $env:USERPROFILE }
# Validate SAFE_CHAIN_DIR before use
if ($env:SAFE_CHAIN_DIR) {
if (-not [System.IO.Path]::IsPathRooted($env:SAFE_CHAIN_DIR)) {
Write-Host "[ERROR] SAFE_CHAIN_DIR must be an absolute path, got: $($env:SAFE_CHAIN_DIR)" -ForegroundColor Red; exit 1
}
if ($env:SAFE_CHAIN_DIR -match '\.\.') {
Write-Host "[ERROR] SAFE_CHAIN_DIR must not contain path traversal (..)" -ForegroundColor Red; exit 1
}
if ($env:SAFE_CHAIN_DIR -match '^[A-Za-z]:[/\\]?$' -or $env:SAFE_CHAIN_DIR -eq '/') {
Write-Host "[ERROR] SAFE_CHAIN_DIR cannot be a root or drive-root directory" -ForegroundColor Red; exit 1
}
}
$DotSafeChain = if ($env:SAFE_CHAIN_DIR) { $env:SAFE_CHAIN_DIR } else { Join-Path $HomeDir ".safe-chain" }
# Validate $DotSafeChain before any filesystem operations
if (-not [System.IO.Path]::IsPathRooted($DotSafeChain)) {
Write-Host "[ERROR] SAFE_CHAIN_DIR must be an absolute path, got: $DotSafeChain" -ForegroundColor Red; exit 1
}
if ($DotSafeChain -match '\.\.') {
Write-Host "[ERROR] SAFE_CHAIN_DIR must not contain path traversal (..)" -ForegroundColor Red; exit 1
}
if ($DotSafeChain -match '^[A-Za-z]:[/\\]?$' -or $DotSafeChain -eq '/') {
Write-Host "[ERROR] SAFE_CHAIN_DIR cannot be a root or drive-root directory" -ForegroundColor Red; exit 1
}
$InstallDir = Join-Path $DotSafeChain "bin"
# Helper functions

25
install-scripts/uninstall-safe-chain.sh
View file

@ -7,20 +7,23 @@
set -e # Exit on error
# Configuration
DOT_SAFE_CHAIN="${SAFE_CHAIN_DIR:-${HOME}/.safe-chain}"
# Validate DOT_SAFE_CHAIN before any filesystem operations
case "${DOT_SAFE_CHAIN}" in
/*) ;;
*) printf '[ERROR] SAFE_CHAIN_DIR must be an absolute path, got: %s\n' "${DOT_SAFE_CHAIN}" >&2; exit 1 ;;
esac
case "${DOT_SAFE_CHAIN}" in
*../*|*/..*|..) printf '[ERROR] SAFE_CHAIN_DIR must not contain path traversal (..)\n' >&2; exit 1 ;;
esac
if [ "${DOT_SAFE_CHAIN}" = "/" ]; then
printf '[ERROR] SAFE_CHAIN_DIR cannot be the root directory\n' >&2; exit 1
# Validate SAFE_CHAIN_DIR before use
if [ -n "${SAFE_CHAIN_DIR}" ]; then
case "${SAFE_CHAIN_DIR}" in
/*) ;;
*) printf '[ERROR] SAFE_CHAIN_DIR must be an absolute path, got: %s\n' "${SAFE_CHAIN_DIR}" >&2; exit 1 ;;
esac
case "${SAFE_CHAIN_DIR}" in
*../*|*/..*|..) printf '[ERROR] SAFE_CHAIN_DIR must not contain path traversal (..)\n' >&2; exit 1 ;;
esac
if [ "${SAFE_CHAIN_DIR}" = "/" ]; then
printf '[ERROR] SAFE_CHAIN_DIR cannot be the root directory\n' >&2; exit 1
fi
fi
DOT_SAFE_CHAIN="${SAFE_CHAIN_DIR:-${HOME}/.safe-chain}"
# Colors for output
RED='\033[0;31m'
GREEN='\033[0;32m'