mirror of
https://github.com/vernu/vps-audit.git
synced 2025-01-23 05:24:58 +03:00
Merge branch 'vernu:main' into patch-2
This commit is contained in:
Rob
GitHub
commit
ca71a26a75
85
vps-audit.sh
85
vps-audit.sh
@ -110,22 +110,45 @@ else
|
||||
check_security "System Restart" "PASS" "No restart required"
|
||||
fi
|
||||
|
||||
# Check SSH root login
|
||||
if grep -q "^PermitRootLogin.*no" /etc/ssh/sshd_config; then
|
||||
# Check SSH config overrides
|
||||
SSH_CONFIG_OVERRIDES=$(grep "^Include" /etc/ssh/sshd_config 2>/dev/null | awk '{print $2}')
|
||||
|
||||
# Check SSH root login (handle both main config and overrides if they exist)
|
||||
if [ -n "$SSH_CONFIG_OVERRIDES" ] && [ -d "$(dirname "$SSH_CONFIG_OVERRIDES")" ]; then
|
||||
SSH_ROOT=$(grep "^PermitRootLogin" $SSH_CONFIG_OVERRIDES /etc/ssh/sshd_config 2>/dev/null | head -1 | awk '{print $2}')
|
||||
else
|
||||
SSH_ROOT=$(grep "^PermitRootLogin" /etc/ssh/sshd_config 2>/dev/null | head -1 | awk '{print $2}')
|
||||
fi
|
||||
if [ -z "$SSH_ROOT" ]; then
|
||||
SSH_ROOT="prohibit-password"
|
||||
fi
|
||||
if [ "$SSH_ROOT" = "no" ]; then
|
||||
check_security "SSH Root Login" "PASS" "Root login is properly disabled in SSH configuration"
|
||||
else
|
||||
check_security "SSH Root Login" "FAIL" "Root login is currently allowed - this is a security risk. Disable it in /etc/ssh/sshd_config"
|
||||
fi
|
||||
|
||||
# Check SSH password authentication
|
||||
if grep -q "^PasswordAuthentication.*no" /etc/ssh/sshd_config; then
|
||||
# Check SSH password authentication (handle both main config and overrides if they exist)
|
||||
if [ -n "$SSH_CONFIG_OVERRIDES" ] && [ -d "$(dirname "$SSH_CONFIG_OVERRIDES")" ]; then
|
||||
SSH_PASSWORD=$(grep "^PasswordAuthentication" $SSH_CONFIG_OVERRIDES /etc/ssh/sshd_config 2>/dev/null | head -1 | awk '{print $2}')
|
||||
else
|
||||
SSH_PASSWORD=$(grep "^PasswordAuthentication" /etc/ssh/sshd_config 2>/dev/null | head -1 | awk '{print $2}')
|
||||
fi
|
||||
if [ -z "$SSH_PASSWORD" ]; then
|
||||
SSH_PASSWORD="yes"
|
||||
fi
|
||||
if [ "$SSH_PASSWORD" = "no" ]; then
|
||||
check_security "SSH Password Auth" "PASS" "Password authentication is disabled, key-based auth only"
|
||||
else
|
||||
check_security "SSH Password Auth" "FAIL" "Password authentication is enabled - consider using key-based authentication only"
|
||||
fi
|
||||
|
||||
# Check SSH default port
|
||||
SSH_PORT=$(grep "^Port" /etc/ssh/sshd_config | awk '{print $2}')
|
||||
if [ -n "$SSH_CONFIG_OVERRIDES" ] && [ -d "$(dirname "$SSH_CONFIG_OVERRIDES")" ]; then
|
||||
SSH_PORT=$(grep "^Port" $SSH_CONFIG_OVERRIDES /etc/ssh/sshd_config 2>/dev/null | head -1 | awk '{print $2}')
|
||||
else
|
||||
SSH_PORT=$(grep "^Port" /etc/ssh/sshd_config 2>/dev/null | head -1 | awk '{print $2}')
|
||||
fi
|
||||
if [ -z "$SSH_PORT" ]; then
|
||||
SSH_PORT="22"
|
||||
fi
|
||||
@ -238,21 +261,32 @@ else
|
||||
check_security "Running Services" "FAIL" "Too many services running ($SERVICES) - increases attack surface"
|
||||
fi
|
||||
|
||||
# Check ports
|
||||
LISTENING_PORTS=$(netstat -tuln | grep LISTEN)
|
||||
PORT_COUNT=$(echo "$LISTENING_PORTS" | wc -l)
|
||||
# Check ports using netstat or ss
|
||||
if command -v netstat >/dev/null 2>&1; then
|
||||
LISTENING_PORTS=$(netstat -tuln | grep LISTEN | awk '{print $4}')
|
||||
elif command -v ss >/dev/null 2>&1; then
|
||||
LISTENING_PORTS=$(ss -tuln | grep LISTEN | awk '{print $5}')
|
||||
else
|
||||
check_security "Port Scanning" "FAIL" "Neither 'netstat' nor 'ss' is available on this system."
|
||||
LISTENING_PORTS=""
|
||||
fi
|
||||
|
||||
# Get list of internet-accessible ports, excluding those explicitly denied by UFW
|
||||
PUBLIC_PORTS=$(netstat -tuln | grep LISTEN | \
|
||||
awk '$4 !~ /127.0.0.1|::1/ && ($4 ~ /0.0.0.0/ || $4 ~ /::/)' | \
|
||||
awk '{split($4, a, ":"); print a[length(a)]}' | sort -n | while read port; do
|
||||
# Skip ports that are explicitly denied in UFW
|
||||
if ! ufw status | grep -q "^$port.*DENY"; then
|
||||
echo "$port"
|
||||
fi
|
||||
done | tr '\n' ',' | sed 's/,$//')
|
||||
# Process LISTENING_PORTS to extract unique public ports
|
||||
if [ -n "$LISTENING_PORTS" ]; then
|
||||
PUBLIC_PORTS=$(echo "$LISTENING_PORTS" | awk -F':' '{print $NF}' | sort -n | uniq | tr '\n' ',' | sed 's/,$//')
|
||||
PORT_COUNT=$(echo "$PUBLIC_PORTS" | tr ',' '\n' | wc -w)
|
||||
INTERNET_PORTS=$(echo "$PUBLIC_PORTS" | tr ',' '\n' | wc -w)
|
||||
|
||||
INTERNET_PORTS=$(echo "$PUBLIC_PORTS" | tr ',' '\n' | wc -l)
|
||||
if [ "$PORT_COUNT" -lt 10 ] && [ "$INTERNET_PORTS" -lt 3 ]; then
|
||||
check_security "Port Security" "PASS" "Good configuration (Total: $PORT_COUNT, Public: $INTERNET_PORTS accessible ports): $PUBLIC_PORTS"
|
||||
elif [ "$PORT_COUNT" -lt 20 ] && [ "$INTERNET_PORTS" -lt 5 ]; then
|
||||
check_security "Port Security" "WARN" "Review recommended (Total: $PORT_COUNT, Public: $INTERNET_PORTS accessible ports): $PUBLIC_PORTS"
|
||||
else
|
||||
check_security "Port Security" "FAIL" "High exposure (Total: $PORT_COUNT, Public: $INTERNET_PORTS accessible ports): $PUBLIC_PORTS"
|
||||
fi
|
||||
else
|
||||
check_security "Port Scanning" "WARN" "Port scanning failed due to missing tools. Ensure 'ss' or 'netstat' is installed."
|
||||
fi
|
||||
|
||||
# Function to format the message with proper indentation for the report file
|
||||
format_for_report() {
|
||||
@ -260,21 +294,6 @@ format_for_report() {
|
||||
echo "$message" >> "$REPORT_FILE"
|
||||
}
|
||||
|
||||
# Evaluate security based on both total ports and internet-accessible ports
|
||||
if [ "$PORT_COUNT" -lt 10 ] && [ "$INTERNET_PORTS" -lt 3 ]; then
|
||||
RESULT="${GREEN}[PASS]${NC} Port Security ${GRAY}- Good configuration (Total: $PORT_COUNT, Public: $INTERNET_PORTS accessible ports): $PUBLIC_PORTS${NC}"
|
||||
echo -e "$RESULT"
|
||||
format_for_report "[PASS] Port Security - Good configuration (Total: $PORT_COUNT, Public: $INTERNET_PORTS accessible ports): $PUBLIC_PORTS"
|
||||
elif [ "$PORT_COUNT" -lt 20 ] && [ "$INTERNET_PORTS" -lt 5 ]; then
|
||||
RESULT="${YELLOW}[WARN]${NC} Port Security ${GRAY}- Review recommended (Total: $PORT_COUNT, Public: $INTERNET_PORTS accessible ports): $PUBLIC_PORTS${NC}"
|
||||
echo -e "$RESULT"
|
||||
format_for_report "[WARN] Port Security - Review recommended (Total: $PORT_COUNT, Public: $INTERNET_PORTS accessible ports): $PUBLIC_PORTS"
|
||||
else
|
||||
RESULT="${RED}[FAIL]${NC} Port Security ${GRAY}- High exposure (Total: $PORT_COUNT, Public: $INTERNET_PORTS accessible ports): $PUBLIC_PORTS${NC}"
|
||||
echo -e "$RESULT"
|
||||
format_for_report "[FAIL] Port Security - High exposure (Total: $PORT_COUNT, Public: $INTERNET_PORTS accessible ports): $PUBLIC_PORTS"
|
||||
fi
|
||||
|
||||
# Check disk space usage
|
||||
DISK_TOTAL=$(df -h / | awk 'NR==2 {print $2}')
|
||||
DISK_USED=$(df -h / | awk 'NR==2 {print $3}')
|
||||
|
||||
Loading…
Reference in New Issue
Block a user