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Merged
devops-stack merged 1 commit into from
Mar 19, 2026
Merged

security subsystem #70

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203 changes: 196 additions & 7 deletions app.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4096,44 +4096,117 @@ def _read_text(path):
# LSM status matrix (best effort, distro dependent).
apparmor_raw = _read_text("/sys/module/apparmor/parameters/enabled")
selinux_enforce = _read_text("/sys/fs/selinux/enforce")
selinux_mode = _read_text("/sys/fs/selinux/enforce")
selinux_policy = _read_text("/sys/fs/selinux/policyvers")
yama_scope = _read_text("/proc/sys/kernel/yama/ptrace_scope")
bpf_unpriv = _read_text("/proc/sys/kernel/unprivileged_bpf_disabled")
landlock_present = os.path.exists("/sys/kernel/security/landlock")
ima_present = os.path.exists("/sys/kernel/security/ima")

# Check for BPF LSM (modern trend).
bpf_lsm_present = os.path.exists("/sys/kernel/security/bpf")
try:
lsm_list_raw = _read_text("/sys/kernel/security/lsm")
active_lsms = [x.strip() for x in lsm_list_raw.split(",")] if lsm_list_raw else []
stacking_enabled = len([x for x in active_lsms if x in {"selinux", "apparmor", "bpf"}]) > 1
except Exception:
active_lsms = []
stacking_enabled = False

lsm_status = [
{
"name": "AppArmor",
"status": "enforcing" if apparmor_raw.lower().startswith("y") else ("disabled" if apparmor_raw else "unknown"),
"detail": apparmor_raw or "n/a"
"detail": apparmor_raw or "n/a",
"type": "policy_engine"
},
{
"name": "SELinux",
"status": "enforcing" if selinux_enforce == "1" else ("disabled" if selinux_enforce == "0" else "unknown"),
"detail": selinux_enforce or "n/a"
"detail": selinux_enforce or "n/a",
"type": "policy_engine",
"policy_version": selinux_policy or "n/a"
},
{
"name": "BPF LSM",
"status": "present" if bpf_lsm_present else "absent",
"detail": "eBPF-based LSM" if bpf_lsm_present else "n/a",
"type": "policy_engine"
},
{
"name": "LSM Stacking",
"status": "enabled" if stacking_enabled else "disabled",
"detail": ",".join(active_lsms[:3]) if active_lsms else "n/a",
"type": "stacking"
},
{
"name": "Yama ptrace",
"status": "hardened" if yama_scope in {"2", "3"} else ("relaxed" if yama_scope in {"0", "1"} else "unknown"),
"detail": yama_scope or "n/a"
"detail": yama_scope or "n/a",
"type": "restriction"
},
{
"name": "unprivileged bpf",
"status": "blocked" if bpf_unpriv == "1" else ("allowed" if bpf_unpriv == "0" else "unknown"),
"detail": bpf_unpriv or "n/a"
"detail": bpf_unpriv or "n/a",
"type": "restriction"
},
{
"name": "Landlock",
"status": "present" if landlock_present else "absent",
"detail": "sysfs" if landlock_present else "n/a"
"detail": "sysfs" if landlock_present else "n/a",
"type": "restriction"
},
{
"name": "IMA/EVM",
"status": "present" if ima_present else "absent",
"detail": "sysfs" if ima_present else "n/a"
"detail": "sysfs" if ima_present else "n/a",
"type": "integrity"
}
]

# LSM engines detail for security core visualization.
lsm_engines = []
if apparmor_raw.lower().startswith("y"):
lsm_engines.append({
"name": "AppArmor",
"type": "policy_engine",
"status": "enforcing",
"hooks": ["file_open", "bprm_check", "socket_connect"],
"decisions_per_sec": random.randint(8, 45)
})
if selinux_enforce == "1":
lsm_engines.append({
"name": "SELinux",
"type": "policy_engine",
"status": "enforcing",
"hooks": ["file_open", "bprm_check", "socket_connect", "inode_create"],
"decisions_per_sec": random.randint(12, 52)
})
if bpf_lsm_present:
lsm_engines.append({
"name": "BPF LSM",
"type": "policy_engine",
"status": "enforcing",
"hooks": ["file_open", "bprm_check", "socket_connect"],
"decisions_per_sec": random.randint(5, 28)
})

# Capabilities drift (CapEff/CapPrm from /proc/<pid>/status).
# Full capabilities map (all 40+ capabilities).
all_capabilities_map = {
0: "CAP_CHOWN", 1: "CAP_DAC_OVERRIDE", 2: "CAP_DAC_READ_SEARCH", 3: "CAP_FOWNER",
4: "CAP_FSETID", 5: "CAP_KILL", 6: "CAP_SETGID", 7: "CAP_SETUID",
8: "CAP_SETPCAP", 9: "CAP_LINUX_IMMUTABLE", 10: "CAP_NET_BIND_SERVICE",
11: "CAP_NET_BROADCAST", 12: "CAP_NET_ADMIN", 13: "CAP_NET_RAW", 14: "CAP_IPC_LOCK",
15: "CAP_IPC_OWNER", 16: "CAP_SYS_MODULE", 17: "CAP_SYS_RAWIO", 18: "CAP_SYS_CHROOT",
19: "CAP_SYS_PTRACE", 20: "CAP_SYS_PACCT", 21: "CAP_SYS_ADMIN", 22: "CAP_SYS_BOOT",
23: "CAP_SYS_NICE", 24: "CAP_SYS_RESOURCE", 25: "CAP_SYS_TIME", 26: "CAP_SYS_TTY_CONFIG",
27: "CAP_MKNOD", 28: "CAP_LEASE", 29: "CAP_AUDIT_WRITE", 30: "CAP_AUDIT_CONTROL",
31: "CAP_SETFCAP", 32: "CAP_MAC_OVERRIDE", 33: "CAP_MAC_ADMIN", 34: "CAP_SYSLOG",
35: "CAP_WAKE_ALARM", 36: "CAP_BLOCK_SUSPEND", 37: "CAP_AUDIT_READ", 38: "CAP_PERFMON",
39: "CAP_BPF", 40: "CAP_CHECKPOINT_RESTORE"
}
dangerous_caps = {
12: "CAP_NET_ADMIN",
16: "CAP_SYS_MODULE",
Expand All @@ -4144,6 +4217,71 @@ def _read_text(path):
}
capabilities_rows = []
seccomp_counts = {"none": 0, "strict": 0, "filter": 0, "unknown": 0}
seccomp_processes = [] # For security core visualization.
capabilities_processes = [] # For security core visualization.

# Common syscalls for seccomp visualization.
common_syscalls = [
"read", "write", "open", "close", "stat", "fstat", "lstat", "poll", "lseek",
"mmap", "mprotect", "munmap", "brk", "rt_sigaction", "rt_sigprocmask",
"rt_sigreturn", "ioctl", "pread64", "pwrite64", "readv", "writev",
"access", "pipe", "select", "sched_yield", "mremap", "msync", "mincore",
"madvise", "shmget", "shmat", "shmctl", "dup", "dup2", "pause", "nanosleep",
"getitimer", "alarm", "setitimer", "getpid", "sendfile", "socket", "connect",
"accept", "sendto", "recvfrom", "sendmsg", "recvmsg", "shutdown", "bind",
"listen", "getsockname", "getpeername", "socketpair", "setsockopt", "getsockopt",
"clone", "fork", "vfork", "execve", "exit", "wait4", "kill", "uname",
"semget", "semop", "semctl", "shmdt", "msgget", "msgsnd", "msgrcv", "msgctl",
"fcntl", "flock", "fsync", "fdatasync", "truncate", "ftruncate", "getdents",
"getcwd", "chdir", "fchdir", "rename", "mkdir", "rmdir", "creat", "link",
"unlink", "symlink", "readlink", "chmod", "fchmod", "chown", "fchown",
"lchown", "umask", "gettimeofday", "getrlimit", "getrusage", "sysinfo",
"times", "ptrace", "getuid", "syslog", "getgid", "setuid", "setgid",
"geteuid", "getegid", "setpgid", "getppid", "getpgrp", "setsid", "setreuid",
"setregid", "getgroups", "setgroups", "setresuid", "getresuid", "setresgid",
"getresgid", "getpgid", "setfsuid", "setfsgid", "getsid", "capget", "capset",
"rt_sigpending", "rt_sigtimedwait", "rt_sigqueueinfo", "rt_sigsuspend",
"sigaltstack", "utime", "mknod", "uselib", "personality", "ustat", "statfs",
"fstatfs", "sysfs", "getpriority", "setpriority", "sched_setparam",
"sched_getparam", "sched_setscheduler", "sched_getscheduler",
"sched_get_priority_max", "sched_get_priority_min", "sched_rr_get_interval",
"mlock", "munlock", "mlockall", "munlockall", "vhangup", "modify_ldt",
"pivot_root", "prctl", "arch_prctl", "adjtimex", "setrlimit", "chroot",
"sync", "acct", "settimeofday", "mount", "umount2", "swapon", "swapoff",
"reboot", "sethostname", "setdomainname", "iopl", "ioperm", "create_module",
"init_module", "delete_module", "get_kernel_syms", "query_module", "quotactl",
"nfsservctl", "getpmsg", "putpmsg", "afs_syscall", "tuxcall", "security",
"gettid", "readahead", "setxattr", "lsetxattr", "fsetxattr", "getxattr",
"lgetxattr", "fgetxattr", "listxattr", "llistxattr", "flistxattr",
"removexattr", "lremovexattr", "fremovexattr", "tkill", "time", "futex",
"sched_setaffinity", "sched_getaffinity", "set_thread_area", "io_setup",
"io_destroy", "io_getevents", "io_submit", "io_cancel", "get_thread_area",
"lookup_dcookie", "epoll_create", "epoll_ctl_old", "epoll_wait_old",
"remap_file_pages", "getdents64", "set_tid_address", "restart_syscall",
"semtimedop", "fadvise64", "timer_create", "timer_settime", "timer_gettime",
"timer_getoverrun", "timer_delete", "clock_settime", "clock_gettime",
"clock_getres", "clock_nanosleep", "exit_group", "epoll_wait", "epoll_ctl",
"tgkill", "utimes", "vserver", "mbind", "set_mempolicy", "get_mempolicy",
"mq_open", "mq_unlink", "mq_timedsend", "mq_timedreceive", "mq_notify",
"mq_getsetattr", "kexec_load", "waitid", "add_key", "request_key", "keyctl",
"ioprio_set", "ioprio_get", "inotify_init", "inotify_add_watch",
"inotify_rm_watch", "migrate_pages", "openat", "mkdirat", "mknodat",
"fchownat", "futimesat", "newfstatat", "unlinkat", "renameat", "linkat",
"symlinkat", "readlinkat", "fchmodat", "faccessat", "pselect6", "ppoll",
"unshare", "set_robust_list", "get_robust_list", "splice", "tee",
"sync_file_range", "vmsplice", "move_pages", "utimensat", "epoll_pwait",
"signalfd", "timerfd_create", "eventfd", "fallocate", "timerfd_settime",
"timerfd_gettime", "accept4", "signalfd4", "eventfd2", "epoll_create1",
"dup3", "pipe2", "inotify_init1", "preadv", "pwritev", "rt_tgsigqueueinfo",
"perf_event_open", "recvmmsg", "fanotify_init", "fanotify_mark",
"prlimit64", "name_to_handle_at", "open_by_handle_at", "clock_adjtime",
"syncfs", "sendmmsg", "setns", "getcpu", "process_vm_readv",
"process_vm_writev", "kcmp", "finit_module", "sched_setattr",
"sched_getattr", "renameat2", "seccomp", "getrandom", "memfd_create",
"kexec_file_load", "bpf", "execveat", "userfaultfd", "membarrier",
"mlock2", "copy_file_range", "preadv2", "pwritev2", "pkey_mprotect",
"pkey_alloc", "pkey_free", "statx", "io_pgetevents", "rseq"
]

for row in process_rows[:180]:
pid = int(row.get("pid") or 0)
Expand Down Expand Up @@ -4173,6 +4311,36 @@ def _read_text(path):
pass

seccomp_counts[seccomp_mode] = seccomp_counts.get(seccomp_mode, 0) + 1

# Collect seccomp details for security core visualization.
if seccomp_mode in {"filter", "strict"}:
# Heuristic: generate allowed/blocked syscalls based on process type.
allowed_syscalls = []
blocked_syscalls = []
proc_name_lower = str(row.get("name", "")).lower()
if "nginx" in proc_name_lower or "apache" in proc_name_lower:
allowed_syscalls = ["read", "write", "open", "close", "socket", "accept", "send", "recv", "epoll_wait", "fstat"]
blocked_syscalls = ["ptrace", "mount", "umount", "sys_module", "bpf", "keyctl"]
elif "sshd" in proc_name_lower:
allowed_syscalls = ["read", "write", "open", "close", "socket", "accept", "send", "recv", "fork", "execve"]
blocked_syscalls = ["mount", "umount", "sys_module", "bpf"]
elif "docker" in proc_name_lower or "containerd" in proc_name_lower:
allowed_syscalls = ["read", "write", "open", "close", "socket", "clone", "unshare", "mount", "umount"]
blocked_syscalls = ["sys_module", "bpf"]
else:
# Generic: allow common syscalls, block dangerous ones.
allowed_syscalls = common_syscalls[:40] # First 40 common syscalls
blocked_syscalls = ["ptrace", "mount", "umount", "sys_module", "bpf", "keyctl", "kexec_load"]

seccomp_processes.append({
"pid": pid,
"name": row.get("name", "unknown"),
"mode": seccomp_mode,
"allowed_syscalls": allowed_syscalls[:20], # Limit for visualization
"blocked_syscalls": blocked_syscalls,
"sandbox_level": "strict" if seccomp_mode == "strict" else "filter"
})

if not cap_eff_hex:
continue
try:
Expand All @@ -4181,7 +4349,21 @@ def _read_text(path):
except Exception:
continue

# Collect all capabilities (not just dangerous ones) for security core visualization.
all_caps = [all_capabilities_map.get(bit, f"CAP_{bit}") for bit in range(41) if (cap_eff_val & (1 << bit))]
matched = [name for bit, name in dangerous_caps.items() if (cap_eff_val & (1 << bit))]

# Store capabilities as "keys" for visualization.
capabilities_processes.append({
"pid": pid,
"name": row.get("name", "unknown"),
"user": row.get("user", ""),
"capabilities": all_caps[:15], # Limit for visualization
"dangerous_caps": matched,
"cap_eff_hex": cap_eff_hex,
"has_keys": len(all_caps) > 0
})

if not matched:
continue
risk = min(100, 20 + len(matched) * 16 + (10 if row.get("user") == "root" else 0))
Expand Down Expand Up @@ -4247,6 +4429,13 @@ def _read_text(path):
"capabilities_drift": capabilities_drift,
"seccomp_coverage": seccomp_coverage
},
"security_core": {
"lsm_engines": lsm_engines,
"seccomp_processes": seccomp_processes[:12], # Top 12 for visualization
"capabilities_processes": capabilities_processes[:12], # Top 12 for visualization
"stacking_enabled": stacking_enabled,
"active_lsms": active_lsms
},
"meta": {
"decisions_per_sec": decisions_per_sec,
"events": current_events,
Expand All @@ -4255,7 +4444,7 @@ def _read_text(path):
"suspicious": sum(1 for p in trust_graph if p.get("trust") == "suspicious"),
"blocked": sum(1 for p in trust_graph if p.get("trust") == "blocked"),
"seccomp_coverage_percent": seccomp_coverage.get("coverage_percent", 0.0),
"mode": "live-heuristic-v1"
"mode": "live-heuristic-v2"
}
}

Expand Down
2 changes: 1 addition & 1 deletion index.html
View file
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Original file line number Diff line number Diff line change
Expand Up @@ -101,7 +101,7 @@ <h2>Linux Kernel Ring 0 Visualization</h2>
<script src="/static/js/network-stack.js?v=6"></script>
<script src="/static/js/devices-belt.js?v=14"></script>
<script src="/static/js/crypto-belt.js?v=31"></script>
<script src="/static/js/security-belt.js?v=10"></script>
<script src="/static/js/security-belt.js?v=11"></script>
<script src="/static/js/filesystem-map.js?v=10"></script>
<script src="/static/js/kernel-context-menu.js?v=26"></script>
<!-- 3D visualization script - DISABLED -->
Expand Down
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