Cannot authenticate user in MongoDB 3.0.2 using java connection

Question

1 - Created user in mongo shell

> use admin
switched to db admin
> db.createUser( { user:"tiger", pwd:"secret", roles: [ { role:"readWrite", db:"zoo" } ] } )
Successfully added user: {
    "user" : "tiger",
    "roles" : [
        {
            "role" : "readWrite",
            "db" : "zoo"
        }
    ]
}

2 - Connected to database from Java

List<ServerAddress> seeds = new ArrayList<ServerAddress>();
seeds.add( new ServerAddress( "remoteserver" ));
List<MongoCredential> credentials = new ArrayList<MongoCredential>();  
credentials.add(
    MongoCredential.createMongoCRCredential(
        "tiger",
        "admin",
        "secret".toCharArray()
    )
);
MongoClient mongoClient = new MongoClient( seeds);  //, credentials );
MongoDbFactory mongoDbFactory = new SimpleMongoDbFactory(mongoClient, "zoo");

3 - Insert a row

mongoTemplate.insert(animal, "animal");

4 - Get this error (this code works when I don't use authentication)

2015-05-13 23:11:36.166 ERROR 67846 --- [nio-8443-exec-4] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.data.mongodb.UncategorizedMongoDbException: { "serverUsed" : "remoteserver:27017" , "ok" : 0.0 , "errmsg" : "auth failed" , "code" : 18}; nested exception is com.mongodb.CommandFailureException: { "serverUsed" : "remoteserver:27017" , "ok" : 0.0 , "errmsg" : "auth failed" , "code" : 18}] with root cause

com.mongodb.CommandFailureException: { "serverUsed" : "remoteserver:27017" , "ok" : 0.0 , "errmsg" : "auth failed" , "code" : 18}
    at com.mongodb.CommandResult.getException(CommandResult.java:76)
    at com.mongodb.CommandResult.throwOnError(CommandResult.java:131)
    at com.mongodb.DBPort$NativeAuthenticator.authenticate(DBPort.java:652)
    at com.mongodb.DBPort.authenticate(DBPort.java:364)
    at com.mongodb.DBPort.checkAuth(DBPort.java:375)
    at com.mongodb.DBTCPConnector.doOperation(DBTCPConnector.java:206)
    at com.mongodb.DBCollectionImpl.writeWithCommandProtocol(DBCollectionImpl.java:424)
    at com.mongodb.DBCollectionImpl.insertWithCommandProtocol(DBCollectionImpl.java:389)
    at com.mongodb.DBCollectionImpl.insert(DBCollectionImpl.java:188)
    at com.mongodb.DBCollectionImpl.insert(DBCollectionImpl.java:167)
    at com.mongodb.DBCollection.insert(DBCollection.java:93)
    at com.mongodb.DBCollection.insert(DBCollection.java:78)
    at com.mongodb.DBCollection.insert(DBCollection.java:120)
    at org.springframework.data.mongodb.core.MongoTemplate$8.doInCollection(MongoTemplate.java:904)
    at org.springframework.data.mongodb.core.MongoTemplate.execute(MongoTemplate.java:410)
    at org.springframework.data.mongodb.core.MongoTemplate.insertDBObject(MongoTemplate.java:899)
    at org.springframework.data.mongodb.core.MongoTemplate.doInsert(MongoTemplate.java:721)
    at org.springframework.data.mongodb.core.MongoTemplate.insert(MongoTemplate.java:676)

user4898172 · Accepted Answer · 2015-05-15 01:18:00Z

15

A little digging and I found that Mongo 3 isn't fond of challenge-response and prefers 'MongoCredential.createScramSha1Credential'

List<ServerAddress> seeds = new ArrayList<ServerAddress>();
seeds.add( new ServerAddress( "remoteServer" ));
List<MongoCredential> credentials = new ArrayList<MongoCredential>();
credentials.add(
    MongoCredential.createScramSha1Credential(
        "username",
        "adminDatabase",
        "password".toCharArray()
    )
);
MongoClient mongoClient = new MongoClient( seeds, credentials );
MongoDbFactory mongoDbFactory = new SimpleMongoDbFactory(mongoClient, "applicationDatabase");
mongoTemplate = new MongoTemplate(mongoDbFactory);

answered May 15, 2015 at 1:18

user4898172

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2 Comments

IsAs Over a year ago

Please refer to this link for more details on authentication failures in mongo 3.0 due to change in auth mechanism - claudiokuenzler.com/blog/553/…

cnmuc Over a year ago

Switching to MongoCredential.createCredential worked for me.

IstaLibera · Accepted Answer · 2016-12-14 12:27:49Z

When using the maven dependency with artefactId "spring-boot-starter-data-mongodb" the MongoCredential.createScramSha1Credential was not available.

So here is what I had to do:

A) Include the maven dependency to mongodb in the pom.xml:

<dependency>
    <groupId>org.mongodb</groupId>
    <artifactId>mongo-java-driver</artifactId>
    <version>3.4.0</version>
</dependency>

B) Using the solution from user4898172 (MongoCredential.createScramSha1Credential)

public Mongo mongo() throws Exception {
    List<MongoCredential> credentials = new ArrayList<>();
    credentials.add(MongoCredential.createScramSha1Credential(username, database, password.toCharArray()));

    return new MongoClient(new ServerAddress(host, port), credentials);
}

These two changes helped me solve the Exeption:

com.mongodb.CommandFailureException: { "serverUsed" : "remoteserver:27017" , "ok" : 0.0 , "errmsg" : "auth failed" , "code" : 18}

(I'm using MongoDB server version: 3.4.0)

The mongodb github site is also a good reference for implementation details.

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