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// SERVER-8623: Test that renameCollection can't be used to bypass auth checks on system namespaces
var conn = MongoRunner.runMongod({auth : ""});
var adminDB = conn.getDB("admin");
var testDB = conn.getDB("testdb");
var testDB2 = conn.getDB("testdb2");
var CodeUnauthorized = 13;
var backdoorUserDoc = { user: 'backdoor', db: 'admin', pwd: 'hashed', roles: ['root'] }
adminDB.createUser({user:'userAdmin',
pwd:'password',
roles:['userAdminAnyDatabase']});
adminDB.auth('userAdmin', 'password');
adminDB.createUser({user:'readWriteAdmin',
pwd:'password',
roles:['readWriteAnyDatabase']});
adminDB.createUser({user:'readWriteAndUserAdmin',
pwd:'password',
roles:['readWriteAnyDatabase', 'userAdminAnyDatabase']});
adminDB.createUser({user: 'root', pwd: 'password', roles: ['root']});
adminDB.createUser({user: 'rootier', pwd: 'password', roles: ['__system']});
adminDB.logout();
jsTestLog("Test that a readWrite user can't rename system.profile to something they can read");
adminDB.auth('readWriteAdmin', 'password');
res = adminDB.system.profile.renameCollection("profile");
assert.eq(0, res.ok);
assert.eq(CodeUnauthorized, res.code);
jsTestLog("Test that a readWrite user can't rename system.users to something they can read");
var res = adminDB.system.users.renameCollection("users");
assert.eq(0, res.ok);
assert.eq(CodeUnauthorized, res.code);
assert.eq(0, adminDB.users.count());
jsTestLog("Test that a readWrite user can't use renameCollection to override system.users");
adminDB.users.insert(backdoorUserDoc);
res = adminDB.users.renameCollection("system.users", true);
assert.eq(0, res.ok);
assert.eq(CodeUnauthorized, res.code);
adminDB.users.drop();
jsTestLog("Test that a userAdmin can't rename system.users without readWrite");
adminDB.logout();
adminDB.auth('userAdmin', 'password');
var res = adminDB.system.users.renameCollection("users");
assert.eq(0, res.ok);
assert.eq(CodeUnauthorized, res.code);
assert.eq(5, adminDB.system.users.count());
adminDB.auth('readWriteAndUserAdmin', 'password');
assert.eq(0, adminDB.users.count());
jsTestLog("Test that even with userAdmin AND dbAdmin you CANNOT rename to/from system.users");
var res = adminDB.system.users.renameCollection("users");
assert.eq(0, res.ok);
assert.eq(CodeUnauthorized, res.code);
assert.eq(5, adminDB.system.users.count());
adminDB.users.drop();
adminDB.users.insert(backdoorUserDoc);
var res = adminDB.users.renameCollection("system.users");
assert.eq(0, res.ok);
assert.eq(CodeUnauthorized, res.code);
assert.eq(null, adminDB.system.users.findOne({user: backdoorUserDoc.user}));
assert.neq(null, adminDB.system.users.findOne({user:'userAdmin'}));
adminDB.auth('rootier', 'password');
jsTestLog("Test that with __system you CAN rename to/from system.users");
var res = adminDB.system.users.renameCollection("users", true);
assert.eq(1, res.ok, tojson(res));
// At this point, all the user documents are gone, so further activity may be unauthorized,
// depending on cluster configuration. So, this is the end of the test.
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