Added basic auth.log support.

meshcentral.js

@@ -861,6 +861,13 @@ function CreateMeshCentralServer(config, args) {
     obj.StartEx1b = function () {
         var i;
 
+        // Linux format /var/log/auth.log
+        if (obj.config.settings.authlog != null) {
+            obj.fs.open(obj.config.settings.authlog, 'a', function (err, fd) {
+                if (err == null) { obj.authlog = fd; } else { console.log('ERROR: Unable to open: ' + obj.config.settings.authlog); }
+            })
+        }
+
         // Check if self update is allowed. If running as a Windows service, self-update is not possible.
         if (obj.fs.existsSync(obj.path.join(__dirname, 'daemon'))) { obj.serverSelfWriteAllowed = false; }
 
@@ -2181,6 +2188,15 @@ function CreateMeshCentralServer(config, args) {
     obj.getServerWarnings = function () { return serverWarnings; }
     obj.addServerWarning = function(msg, print) { serverWarnings.push(msg); if (print !== false) { console.log("WARNING: " + msg); } }
 
+    // auth.log functions
+    obj.authLog = function(server, msg) {
+        if (obj.authlog == null) return;
+        var d = new Date();
+        var month = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'][d.getMonth()];
+        var msg = month + ' ' + d.getDate() + ' ' + obj.common.zeroPad(d.getHours(),2) + ':' + obj.common.zeroPad(d.getMinutes(),2) + ':' + d.getSeconds() + ' meshcentral ' + server + '[' + process.pid + ']: ' + msg + ((obj.platform == 'win32')?'\r\n':'\n');
+        obj.fs.write(obj.authlog, msg, function (err, written, string) { });
+    }
+
     // Return the path of a file into the meshcentral-data path
     obj.getConfigFilePath = function (filename) {
         if ((obj.config != null) && (obj.config.configfiles != null) && (obj.config.configfiles[filename] != null) && (typeof obj.config.configfiles[filename] == 'string')) {

mpsserver.js

@@ -40,7 +40,11 @@ module.exports.CreateMpsServer = function (parent, db, args, certificates) {
         obj.server.on('resumeSession', function (id, cb) { cb(null, tlsSessionStore[id.toString('hex')] || null); });
     }
 
-    obj.server.listen(args.mpsport, function () { console.log("MeshCentral Intel(R) AMT server running on " + certificates.AmtMpsName + ":" + args.mpsport + ((args.mpsaliasport != null) ? (", alias port " + args.mpsaliasport) : "") + "."); }).on("error", function (err) { console.error("ERROR: MeshCentral Intel(R) AMT server port " + args.mpsport + " is not available."); if (args.exactports) { process.exit(); } });
+    obj.server.listen(args.mpsport, function () {
+        console.log("MeshCentral Intel(R) AMT server running on " + certificates.AmtMpsName + ":" + args.mpsport + ((args.mpsaliasport != null) ? (", alias port " + args.mpsaliasport) : "") + ".");
+        obj.parent.authLog('mps', 'Server listening on 0.0.0.0 port ' + args.mpsport + '.');
+    }).on("error", function (err) { console.error("ERROR: MeshCentral Intel(R) AMT server port " + args.mpsport + " is not available."); if (args.exactports) { process.exit(); } });
+
     obj.server.on('tlsClientError', function (err, tlssocket) { if (args.mpsdebug) { var remoteAddress = tlssocket.remoteAddress; if (tlssocket.remoteFamily == 'IPv6') { remoteAddress = '[' + remoteAddress + ']'; } console.log('MPS:Invalid TLS connection from ' + remoteAddress + ':' + tlssocket.remotePort + '.'); } });
     obj.parent.updateServerState('mps-port', args.mpsport);
     obj.parent.updateServerState('mps-name', certificates.AmtMpsName);

redirserver.js

@@ -127,10 +127,11 @@ module.exports.CreateRedirServer = function (parent, db, args, func) {
         obj.tcpServer = obj.app.listen(port, function () {
             obj.port = port;
             console.log("MeshCentral HTTP redirection server running on port " + port + ".");
-            obj.parent.updateServerState("redirect-port", port);
+            obj.parent.authLog('http', 'Server listening on 0.0.0.0 port ' + port + '.');
+            obj.parent.updateServerState('redirect-port', port);
             func(obj.port);
-        }).on("error", function (err) {
+        }).on('error', function (err) {
-            if ((err.code == "EACCES") && (port < 65535)) { StartRedirServer(port + 1); } else { console.log(err); func(obj.port); }
+            if ((err.code == 'EACCES') && (port < 65535)) { StartRedirServer(port + 1); } else { console.log(err); func(obj.port); }
         });
     }
 

sample-config.json

@@ -37,6 +37,7 @@
     "_UserBlockedIP": "127.0.0.1,::1,192.168.0.100",
     "_AgentAllowedIP": "192.168.0.100/24",
     "_AgentBlockedIP": "127.0.0.1,::1",
+    "_AuthLog": "c:\\temp\\auth.log",
     "_LocalDiscovery": {
       "name": "Local server name",
       "info": "Information about this server"

webserver.js

@@ -695,6 +695,7 @@ module.exports.CreateWebServer = function (parent, db, args, certificates) {
                             if ((req.body.token != null) || (req.body.hwtoken != null)) {
                                 randomWaitTime = 2000 + (obj.crypto.randomBytes(2).readUInt16BE(0) % 4095); // This is a fail, wait a random time. 2 to 6 seconds.
                                 req.session.messageid = 108; // Invalid token, try again.
+                                if (obj.parent.authlog) { obj.parent.authLog('https', 'Failed 2FA for ' + xusername + ' from ' + cleanRemoteAddr(req.ip) + ' port ' + req.port); }
                                 parent.debug('web', 'handleLoginRequest: invalid 2FA token');
                                 obj.parent.DispatchEvent(['*', 'server-users', 'user/' + domain.id + '/' + user.name], obj, { action: 'authfail', username: user.name, userid: 'user/' + domain.id + '/' + user.name, domain: domain.id, msg: 'User login attempt with incorrect 2nd factor from ' + cleanRemoteAddr(req.ip) });
                                 obj.setbadLogin(req);
@@ -717,6 +718,7 @@ module.exports.CreateWebServer = function (parent, db, args, certificates) {
                             }
 
                             // Login successful
+                            if (obj.parent.authlog) { obj.parent.authLog('https', 'Accepted password for ' + xusername + ' from ' + cleanRemoteAddr(req.ip) + ' port ' + req.connection.remotePort); }
                             parent.debug('web', 'handleLoginRequest: successful 2FA login');
                             completeLoginRequest(req, res, domain, user, userid, xusername, xpassword, direct);
                         }
@@ -725,10 +727,14 @@ module.exports.CreateWebServer = function (parent, db, args, certificates) {
                 }
 
                 // Login successful
+                if (obj.parent.authlog) { obj.parent.authLog('https', 'Accepted password for ' + xusername + ' from ' + cleanRemoteAddr(req.ip) + ' port ' + req.connection.remotePort); }
                 parent.debug('web', 'handleLoginRequest: successful login');
                 completeLoginRequest(req, res, domain, user, userid, xusername, xpassword, direct);
             } else {
-                // Login failed, wait a random delay
+                // Login failed, log the error
+                if (obj.parent.authlog) { obj.parent.authLog('https', 'Failed password for ' + xusername + ' from ' + cleanRemoteAddr(req.ip) + ' port ' + req.connection.remotePort); }
+
+                // Wait a random delay
                 setTimeout(function () {
                     // If the account is locked, display that.
                     if (typeof xusername == 'string') {
@@ -1377,16 +1383,19 @@ module.exports.CreateWebServer = function (parent, db, args, certificates) {
             // Login using SSPI
             domain.sspi.authenticate(req, res, function (err) {
                 if ((err != null) || (req.connection.user == null)) {
+                    if (obj.parent.authlog) { obj.parent.authLog('https', 'Failed SSPI-auth for ' + req.connection.user + ' from ' + cleanRemoteAddr(req.ip) + ' port ' + req.connection.remotePort); }
                     parent.debug('web', 'handleRootRequest: SSPI auth required.');
                     res.end('Authentication Required...');
                 } else {
+                    if (obj.parent.authlog) { obj.parent.authLog('https', 'Accepted SSPI-auth for ' + req.connection.user + ' from ' + cleanRemoteAddr(req.ip) + ' port ' + req.connection.remotePort); }
                     parent.debug('web', 'handleRootRequest: SSPI auth ok.');
                     handleRootRequestEx(req, res, domain, direct);
                 }
             });
         } else if (req.query.user && req.query.pass) {
-            // User credentials are being passed in the URL. WARNING: Putting credentials in a URL is not good security... but people are requesting this option.
+            // User credentials are being passed in the URL. WARNING: Putting credentials in a URL is bad security... but people are requesting this option.
             obj.authenticate(req.query.user, req.query.pass, domain, function (err, userid) {
+                if (obj.parent.authlog) { obj.parent.authLog('https', 'Accepted password for ' + req.connection.user + ' from ' + cleanRemoteAddr(req.ip) + ' port ' + req.connection.remotePort); }
                 parent.debug('web', 'handleRootRequest: user/pass in URL auth ok.');
                 req.session.userid = userid;
                 req.session.domainid = domain.id;
@@ -3804,6 +3813,7 @@ module.exports.CreateWebServer = function (parent, db, args, certificates) {
                 obj.tcpServer = obj.tlsServer.listen(port, function () { console.log('MeshCentral HTTPS server running on ' + certificates.CommonName + ':' + port + ((args.aliasport != null) ? (', alias port ' + args.aliasport) : '') + '.'); });
                 obj.parent.updateServerState('servername', certificates.CommonName);
             }
+            if (obj.parent.authlog) { obj.parent.authLog('https', 'Server listening on 0.0.0.0 port ' + port + '.'); }
             obj.parent.updateServerState('https-port', port);
             if (args.aliasport != null) { obj.parent.updateServerState('https-aliasport', args.aliasport); }
         } else {