security aspects specific to the Java programming language and libraries.

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1answer
5k views

Java Applet - Need Code Signing Certificate vs SSL Certificate

I'm working on a Java Applet that used to be self-signed. Now that java 7u51 is being used, I am working to get the jar for the Applet signed. I used the certificate/key used for the apache2 ssl ...
3
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2answers
399 views

Securing Java web services called by web site in DMZ using web services for communication

Suppose you have an application running Java web services in Apache Axis 2. Specifically, these are JAX-WS (Java API for XML-Based Web Services). Currently these web services are on the same Windows ...
3
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2answers
369 views

Secure Spring FrameworkUser Management

I got asked this question: "Any decent reusable / plug-able Spring user management systems (registration, change pwd, reset etc)? How do you guys do authz in Spring, including managing those roles ...
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2answers
2k views

Java Applet for mutual authentication with smart card

I need to develop a java applet, for a mutual authentication between Tomcat 6 (server) and a SmartCard "IDGo 300" (client). In order to do this I thought the following scheme: 1.Tomcat (server) send ...
3
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1answer
468 views

Are OpenJDK and non-Windows systems vulnerable to the Sept. 25th 2012 Java vulnerability?

I have heard of this vulnerability, but although it was announced on the Full Disclosure list, it does not provide any details (other than a severity assessment). Does anyone have more info than me, ...
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2answers
986 views

Hide web.xml file from public view

I have found a vulnerability in a sun java application where the web.xml file is publicly viewable as the application is not using any .htaccess nor web.config. I don't how to restrict. I tried with ...
3
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1answer
494 views

Best security algorith for storing passwords [duplicate]

Possible Duplicate: Which password hashing method should I use? I want the best cryptography algorithm for storing passwords in database, which one should I use and how can I implement ...
3
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1answer
772 views

Sip call Developing in android with secure data transfer

I would like to make an application similar to RedPhone on android. I took a look at SipDemo from developer.android.com and at the android.net.sip package.My question is, when you make/receive a call, ...
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2answers
95 views

JKS - Keystore protection and configuration file

It appears that Java Keystore is often used by web server using a configuration file, with the password opening the JKS written in it and also the password protecting the specific entry. How could ...
3
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1answer
655 views

Decrypt Passwords based on using a user's password

I am creating a database to store our client's information at work (a heritage center specializing in DNA based genealogy). Once the results of a test come back, we have people that use the ...
3
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1answer
171 views

Is there any public information on audited Java open source projects?

I'm sure that there must have been any number of audits on common Java open source projects, many of them for governments or publicly-funded bodies. Have any of the results been made public, so that ...
3
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1answer
578 views

How to debug/reverse engineer java applets?

I need to analyze a java application (a .jar file) for a war game. I know java can be decompiled, but the coder apparently did a lot of obfuscation to prevent the reverse engineers from understanding ...
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3answers
662 views

Java 7u11 - Safer to switch to 6?

Java update 7u11 has made some news lately for a couple reasons. Firstly, it was an out-of-band patch to resolve vulnerabilities being exploited in the wild. Then it came back up because it is now ...
3
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1answer
281 views

Multibyte Character Exploits JSP/PostgreSQL

I am trying to secure a web application, written in Java/JSP and running on PostgreSQL, against SQL injection. I ran into this very interesting answer, which refers to PHP and MySQL. Is there any ...
3
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2answers
2k views

where can find sample coding for use of Bouncy Castle(java)?

I had found bcprov-ext-jdk16-145.jar and bcprov-jdk16-145.zip. I wish to use the IDEA encryption to encrypt XML, but i haven't found any sample of coding in JAVA. Can anyone tell me how to call the ...
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2answers
450 views

How to intercept url to disallow Forced Browsing in simple Dynamic Web Project?

I found an issue related to Forced Browsing in my web-application.And I was able to verify that my static content(like text document...mainly help documents) can be accessed by simply hitting the URL ...
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0answers
503 views

When to move from Container managed security to alternatives like Apache Shiro, Spring Security? [closed]

I am trying to secure my application which is built using JSF2.0. I am confused about when do people choose to go with security alternatives like Shiro, Spring Security or owasp's esapi leaving ...
3
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1answer
461 views

Session fixation in Java

In the process of developing a vulnerable jsp/servlet based application I made an attempt to introduce the session fixation vulnerability. Referring to the documentation I came up with the following ...
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2answers
12k views

Best Approach for removing XSS Vulnerability

I have been developing a Webobjects application, and I found that my application is vulnerable to XSS through URL, but not when malicious input like <script>alert("hi")</script> is input ...
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3answers
478 views

Microsoft password strength checker

I typed in my password in Microsoft password strength checker website. Could it now be possible for someone to recover that password from my computer?
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4answers
618 views

How to identify the Java program that is maliciously accessing my web site from many client addresses?

For many years, my personal web site receives numerous pairs of hits that look like this, every day: 202.xx.xx.xx - - [22/Apr/2013:12:02:26 +0000] "GET / HTTP/1.1" 200 5923 "-" "Java/1.4.1_04" ...
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5answers
3k views

Website vulnerability scanner in Java && Open Source [closed]

I am working on a Web platform that must-need-should have a good level of security. Therefore, I am interested in a good quality tool to test my Web platform QA on security. My main programming ...
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2answers
104 views

Is writing to /dev/null secure?

I am working on a web-service based crypto project in JAVA. The basic idea is for the client to send a SOAP request to a servlet to encrypt data. For data transmission I am using MIME/data-handlers ...
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2answers
151 views

Understanding salted password hashing using Java

Context: I am using this tutorial and trying to understand and implement salted password hashing using Java. After spending some time on this topic, I figured out that the basic idea is to: Convert ...
2
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1answer
252 views

Taking root ownership

Just gonna make this clear first, this is for class! I have an assignment that requires to 1) modify a web server written in Java to accept file uploads and to use this to deface the homepage (did ...
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1answer
215 views

Crackstation “Secure Salted Password” Java example - is it really secure?

I'm making an auth service so I've been looking for some good Java/Groovy implementations of password + salt hashing. I've found this article on crackstation along with a code example and decided to ...
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1answer
856 views

Preventing License protection circumvention in Java software

A software (written in Java) by a vendor uses DSA signature to verify that the license information is correct. It achieves this by embedding the public key in the same Java software. Legit license ...
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3answers
188 views

Identifying and preventing execution of “any” function via Late-Bound commands

The Command Pattern is widely used to create a robust, salable applications. However I see guidance in this MSDN article that could allow a caller to invoke a late-bound command... enabling the ...
2
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2answers
127 views

Why is “\000” added to the end of passwords prior to hashing with bcrypt?

I am implementing bcrypt for java as found here. Before the actual hash takes place, line 455 of this implementation takes the raw String password, and transforms it into a byte array like so: ...
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1answer
2k views

How securely random is Oracle's java.security.SecureRandom

There was a lot of news in the past year about exploitable weaknesses in cryptography which originated from weak random number generators. In some cases it was negligence on side of the developers, in ...
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4answers
2k views

Bouncy Castle - document signed by sender and only readable by receiver?

I am building an application that requires secure data transfer. In particular, the sender has a data file that needs to be sent to the receiver. It is required that only the receiver be able to read ...
2
votes
1answer
163 views

Is there a tool that puts on a webserver some .html or .php files filled with popular malware like java drive-bys or other browser exploit payloads? [closed]

As mentioned in the title I'm looking for a tool that puts on a webserver some .html or .php files filled with popular malware like java drive-bys or other browser exploit payloads? Maybe there is ...
2
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1answer
256 views

Are Java applications vulnerable to CVE-2014-6321 (WinShock)?

CVE-2014-6321 (also known as MS14-066) is a heap overflow vulnerability discovered by Microsoft engineers in Schannel, the SSL/TLS implementation used by Windows. My Java application uses SSL (JSSE ...
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1answer
147 views

Java org.xmlpull.v1.XmlPullParser and XML External Entity (XXE) Processing Attacks

I'm evaluating the security of an Android application and the application is using the XmlPullParser included with Android. I'm having some difficulty getting any common attacks to work, but I want ...
2
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1answer
997 views

Are there any functional differences in the implementations of OpenSSL, GnuTLS, Java's TLS, and .NET's TLS?

Question Are there any functional (or detectable) differences between the various implementations of SSL/TLS? What are the differences between them? (e.g. which ones implement "False Start") ...
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2answers
396 views

What is the correct way to assess and compare Certicom's products to the alternatives?

I'm investigating Certicom's API because they are "free" with the Blackberry implementations, and have come to realize that I have several alternatives for implementing crypto such as BouncyCastle, ...
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2answers
130 views

Best way to securely store passwords for local use?

I am writing a Java application who needs three username/password pairs. I would like to add a "remember me" feature, implying I would have to store passwords on the user's computer. Knowing this ...
2
votes
1answer
142 views

How to run multiple session while scanning application through Burp?

While the scanning the application through Burp, I found that if I use multiple threads it is resulting to session errors like (The requested session id appears to be invalid.You may have more than ...
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3answers
3k views

(Android) hacking server by a simple socket

I have written an Android game. Now, I want to connect the marks of the players. The code below is the client side program, which send their names, countries and marks to the server. Basically, I use ...
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2answers
67 views

Is there a website or other resource that lists operating systems/platforms and the included root certificates?

I need to choose a certification authority (CA), to get a certificate, but I noticed that there are several of these only present in some operating systems/platforms like windows. I need to choose one ...
2
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2answers
953 views

How do I Mitigate Directory Traversal when User-Supplied Input is a Mandatory Business Case?

I have an instance where we have an application that requires the ability to set up sftp commands that are specified by administrative users. They are configured through the front-end of the ...
2
votes
1answer
531 views

What key to use in HMAC

I need to use HMAC on a certain message to guarantee integrity, but I cannot figure out what are the requirements for the key to be given as input to the hashing algorithm. In particular I have to ...
2
votes
1answer
4k views

Where to store Java keystore password?

We are going to have a Java Key Store which will store certificates & public/private keys. This keystore will be protected with the password. However, access to the keystore is only from the ...
2
votes
1answer
546 views

How disable Java in Chrome 23?

Well in case someone doesn't know yet... there is a new Java zero day. I'm trying to disable it on Chrome but I can't find any option. Google searches says that the option for deactivate it is on ...
2
votes
1answer
381 views

Is DWR (Direct Web Remoting) Secure?

Is DWR considered secure, or what may be required to secure Direct Web Remoting? Are there better options for hardened asynchronous communication?
2
votes
1answer
152 views

How 'Logjam' attack affects openID since it uses Diffie-Hellman key exchange method?

According to the Diffie-Hellman key exchange get affected by logjam, and openID uses this to establish an association. So how this going to affect OpenID?
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1answer
25 views

How is composed “public host key and certificates (K_S)” in SSH_MSG_KEX_DH_GEX_REPLY message? (SSH2 key exchange)

I'm trying to implement SSH2 key exchange in Java, and having some difficulties. The RFC4419 states, that: The server responds with: byte SSH_MSG_KEX_DH_GEX_REPLY string server public host ...
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1answer
495 views

SSL communication between a C# Server and an Android Client App

I'm using a C# server and a C# tcp client example I extracted from the MSDN and I have created a self signed certificate using makecert.exe. I have got this to communicate with one another and it ...
2
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1answer
72 views

How to prevent browser from rendering malacious content if request or response is hacked

We are currently working on OWASP security fixes and we identified one attack scenario for which we are trying to figure out a possible solution: User hits a valid HTTPRequest to our application. ...
2
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1answer
106 views

Smartcard - main differences between .NET and Java smartcard?

My question focuses on the differences regarding PKCS11 implementation between a .Net and a Java smartcard. More generally, do smartcard use a specific "OS" (or firmware) and only differ in the ...