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https://github.com/Ylianst/MeshCentral.git
synced 2024-12-24 06:05:53 -05:00
Added user session destruction on logout for improved security.
This commit is contained in:
Ylian Saint-Hilaire
parent
b939c4b89e
commit
933b9af899
16
package.json
16
package.json
@ -36,6 +36,9 @@
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"sample-config-advanced.json"
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],
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"dependencies": {
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"@yetzt/nedb": "^1.8.0",
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"archiver": "^4.0.2",
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"archiver-zip-encrypted": "^1.0.10",
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"body-parser": "^1.19.0",
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"cbor": "~5.2.0",
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"compression": "^1.7.4",
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@ -43,13 +46,22 @@
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"express": "^4.17.0",
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"express-handlebars": "^3.1.0",
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"express-ws": "^4.0.0",
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"image-size": "^1.0.0",
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"ipcheck": "^0.1.0",
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"loadavg-windows": "^1.1.1",
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"minimist": "^1.2.5",
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"multiparty": "^4.2.1",
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"@yetzt/nedb": "^1.8.0",
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"node-forge": "^0.10.0",
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"node-rdpjs-2": "^0.3.5",
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"node-windows": "^0.1.4",
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"otplib": "^10.2.3",
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"pg": "^8.7.1",
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"pgtools": "^0.3.2",
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"ssh2": "^1.5.0",
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"web-push": "^3.4.5",
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"ws": "^5.2.3",
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"yauzl": "^2.10.0"
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"yauzl": "^2.10.0",
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"yubikeyotp": "^0.2.0"
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},
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"engines": {
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"node": ">=10.0.0"
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42
webserver.js
42
webserver.js
@ -84,6 +84,7 @@ module.exports.CreateWebServer = function (parent, db, args, certificates, doneF
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obj.blockedAgents = 0;
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obj.renderPages = null;
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obj.renderLanguages = [];
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obj.destroyedSessions = {};
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// Mesh Rights
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const MESHRIGHT_EDITMESH = 0x00000001;
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@ -768,6 +769,7 @@ module.exports.CreateWebServer = function (parent, db, args, certificates, doneF
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if (req.session.userid) {
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var user = obj.users[req.session.userid];
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if (user != null) { obj.parent.DispatchEvent(['*'], obj, { etype: 'user', userid: user._id, username: user.name, action: 'logout', msgid: 2, msg: 'Account logout', domain: domain.id }); }
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if (req.session.x) { clearDestroyedSessions(); obj.destroyedSessions[req.session.userid + '/' + req.session.x] = Date.now(); } // Destroy this session
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}
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req.session = null;
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parent.debug('web', 'handleLogoutRequest: success.');
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@ -1260,6 +1262,7 @@ module.exports.CreateWebServer = function (parent, db, args, certificates, doneF
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delete req.session.currentNode;
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req.session.userid = userid;
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req.session.ip = req.clientIp;
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setSessionRandom(req);
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// If a login token was used, add this information and expire time to the session.
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if ((loginOptions != null) && (loginOptions.tokenName != null) && (loginOptions.tokenUser != null)) {
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@ -1423,6 +1426,7 @@ module.exports.CreateWebServer = function (parent, db, args, certificates, doneF
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obj.users[user._id] = user;
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req.session.userid = user._id;
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req.session.ip = req.clientIp; // Bind this session to the IP address of the request
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setSessionRandom(req);
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// Create a user, generate a salt and hash the password
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require('./pass').hash(req.body.password1, function (err, salt, hash, tag) {
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if (err) throw err;
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@ -1531,6 +1535,7 @@ module.exports.CreateWebServer = function (parent, db, args, certificates, doneF
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parent.debug('web', 'handleResetPasswordRequest: success');
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req.session.userid = userid;
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req.session.ip = req.clientIp; // Bind this session to the IP address of the request
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setSessionRandom(req);
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completeLoginRequest(req, res, domain, obj.users[userid], userid, req.session.tuser, req.session.tpass, direct, loginOptions);
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}, 0);
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}
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@ -2425,6 +2430,7 @@ module.exports.CreateWebServer = function (parent, db, args, certificates, doneF
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parent.DispatchEvent(targets, obj, event);
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req.session.userid = userid;
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setSessionRandom(req);
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} else {
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// New users not allowed
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parent.debug('web', 'handleStrategyLogin: Can\'t create new accounts');
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@ -2449,6 +2455,7 @@ module.exports.CreateWebServer = function (parent, db, args, certificates, doneF
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}
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parent.debug('web', 'handleStrategyLogin: succesful login: ' + userid);
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req.session.userid = userid;
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setSessionRandom(req);
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}
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}
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//res.redirect(domain.url); // This does not handle cookie correctly.
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@ -2500,6 +2507,7 @@ module.exports.CreateWebServer = function (parent, db, args, certificates, doneF
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req.session.userid = userid;
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delete req.session.currentNode;
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req.session.ip = req.clientIp; // Bind this session to the IP address of the request
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setSessionRandom(req);
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handleRootRequestEx(req, res, domain, direct);
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});
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} else if ((req.session != null) && (typeof req.session.loginToken == 'string')) {
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@ -2531,6 +2539,7 @@ module.exports.CreateWebServer = function (parent, db, args, certificates, doneF
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req.session.userid = 'user/' + domain.id + '/~';
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delete req.session.currentNode;
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req.session.ip = req.clientIp; // Bind this session to the IP address of the request
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setSessionRandom(req);
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if (obj.users[req.session.userid] == null) {
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// Create the dummy user ~ with impossible password
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parent.debug('web', 'handleRootRequestEx: created dummy user in nouser mode.');
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@ -2544,6 +2553,7 @@ module.exports.CreateWebServer = function (parent, db, args, certificates, doneF
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req.session.userid = 'user/' + domain.id + '/' + obj.args.user.toLowerCase();
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delete req.session.currentNode;
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req.session.ip = req.clientIp; // Bind this session to the IP address of the request
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setSessionRandom(req);
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} else if (req.query.login && (obj.parent.loginCookieEncryptionKey != null)) {
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var loginCookie = obj.parent.decodeCookie(req.query.login, obj.parent.loginCookieEncryptionKey, 60); // 60 minute timeout
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//if ((loginCookie != null) && (obj.args.cookieipcheck !== false) && (loginCookie.ip != null) && (loginCookie.ip != req.clientIp)) { loginCookie = null; } // If the cookie if binded to an IP address, check here.
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@ -2554,6 +2564,7 @@ module.exports.CreateWebServer = function (parent, db, args, certificates, doneF
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req.session.userid = loginCookie.u;
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delete req.session.currentNode;
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req.session.ip = req.clientIp; // Bind this session to the IP address of the request
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setSessionRandom(req);
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} else {
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parent.debug('web', 'handleRootRequestEx: cookie auth failed.');
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}
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@ -2570,6 +2581,7 @@ module.exports.CreateWebServer = function (parent, db, args, certificates, doneF
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req.session.usersGroups = req.connection.userGroups;
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delete req.session.currentNode;
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req.session.ip = req.clientIp; // Bind this session to the IP address of the request
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setSessionRandom(req);
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// Check if this user exists, create it if not.
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user = obj.users[req.session.userid];
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@ -5576,6 +5588,20 @@ module.exports.CreateWebServer = function (parent, db, args, certificates, doneF
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// Add HTTP security headers to all responses
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obj.app.use(function (req, res, next) {
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// Check if a session is destroyed
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if (typeof req.session.userid == 'string') {
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if (typeof req.session.x == 'string') {
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if (obj.destroyedSessions[req.session.userid + '/' + req.session.x] != null) {
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delete req.session.userid;
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delete req.session.ip;
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delete req.session.t;
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delete req.session.x;
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}
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} else {
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// Legacy session without a random, add one.
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setSessionRandom(req);
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}
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}
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// Remove legacy values from the session to keep the session as small as possible
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delete req.session.domainid;
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@ -7932,5 +7958,21 @@ module.exports.CreateWebServer = function (parent, db, args, certificates, doneF
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}
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}
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// Set a random value to this session. Only works if the session has a userid.
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// This random value along with the userid is used to destroy the session when logging out.
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function setSessionRandom(req) {
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if ((req.session == null) || (req.session.userid == null) || (req.session.x != null)) return;
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var x = obj.crypto.randomBytes(6).toString('base64');
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while (obj.destroyedSessions[req.session.userid + '/' + x] != null) { x = obj.crypto.randomBytes(6).toString('base64'); }
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req.session.x = x;
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}
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// Remove all destroyed sessions after 2 hours, these sessions would have timed out anyway.
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function clearDestroyedSessions() {
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var toRemove = [], t = Date.now() - (2 * 60 * 60 * 1000);
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for (var i in obj.destroyedSessions) { if (obj.destroyedSessions[i] < t) { toRemove.push(i); } }
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for (var i in toRemove) { delete obj.destroyedSessions[toRemove[i]]; }
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}
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return obj;
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};
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