Security aspects specific to the Java programming language, libraries, and virtual machine.

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6
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1answer
112 views

Why java.sql.ResultSet.getString is an Information Leakage vulnerability

Recently I started using LAPSE+ for static code analysis and it kept on pointing java.sql.ResultSet.getString as an Information Leakage. The ResultSet is properly closed after its usage. LAPSE+ does ...
4
votes
1answer
980 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 ...
3
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1answer
3k views

Is keystore file (server.jks), my private key file?

My task is to convert .p7b to .pfx. It would be great, if you could provide me some pointers. Below are the steps I used to generate the .p7b file: I generated a .jks (java keystore) file using ...
2
votes
1answer
48 views

How can Heap Pollution cause a security flaw

I came across this rule in the CERT Secure Coding Standart for Java. Heap Pollution. I understand this can cause the programm throwing an exception at runtime, but i can't understand how this could ...
2
votes
1answer
37 views

Trusting HTMLUnit with Banking Details

I figured this was a good place to learn a little about trusting libraries such as HTMLUnit with sensitive information. I want to build a service that categorises my spending, kind of like my own ...
2
votes
1answer
278 views

How CERT.rsa is interrelated with PackageInfo signatures

I am a newbie in security and cryptography, but I am developing Android applications and now wanna to dive deeper into the Android security mechanisms. I am trying to understand how CERT.rsa (as I ...
1
vote
1answer
144 views

Is use of HttpServletRequest.getQueryString() for a response header vulnerable to response splitting?

I've been told that using HttpServletRequest.getQueryString() in a response header makes my application susceptible to HTTP response splitting attacks, but I just don't see how. It's clear in the ...
0
votes
1answer
28 views

How authentication tag is calculated in AES-GCM-256

I have a sample code,which encrypt and decrypt a string using AES-GCM-256. I am unable to understand,how authentication tag is being generated on encrypter side and how is that being used on ...
0
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1answer
253 views

Creating root CA to issue certificates programatically

I have to generate a self signed root CA and use it to issue to certificates programatically. I am new to security and certificates and I think I am missing some pieces required to make the whole ...
-1
votes
1answer
39 views

Security issues for a Java program that is a consumer of streaming radio

Are there any security issues I should be aware of when opening a Socket connection with the url/port of a streaming radio station? I have written some code to do this (no web stuff, just some ...
5
votes
0answers
68 views

Preventing Server-Side Request Forgeries in Java

The application lets users specify a URL for their profile picture. It fetches the data from the URL and saves it on the server. However, the app is vulnerable to server-side request forgery (SSRF) - ...
4
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0answers
890 views

Why does Java allow AES-256 bit encryption on systems without JCE unlimited strength policies if using PBE?

It's fairly standard knowledge that due to the cryptography export controls, Oracle JRE ships with "limited" cryptographic strength enabled as listed in the JCA Documentation. For AES, the default max ...
3
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0answers
230 views

Security for Hospital IT

I'm developing a program in Java intended to be utilized in a hospital. The system uses RMI internally between workstations and the server program. The program would be installed on the hospital's ...
3
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0answers
140 views

What is the openssl equivalent of using java's KeyPairGenerator?

I have been using java's KeyPairGenerator in order to generate public/private keys within a program so that I can encrypt and decrypt files(also using java encrypt/decrypt methods). I want to be able ...
2
votes
0answers
47 views

How to validate Excel data to protect against XSS?

My application is dynamically constructing a source URL and then writing the resource file (Excel) directly to the response. The URL is read from a properties file, based on the application ...
2
votes
0answers
144 views

Code execution through JSP RFI?

I'm working on improving my understanding of RFI (Remote File Inclusion), especially in JSP apps. I've created a vulnerable application that imports a JSP page from another server to replicate the ...
2
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0answers
90 views

Does the Java version matter when compiling an Android, Amazon, or Blackberry app? (for security reasons)

I need to compile an app that will run on an Android, or Android compatible system (Android, Amazon Fire, or Blackberry). The developer documentation says that JDK 7 is needed, however there are ...
2
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0answers
2k views

Java Updates Restrict Unsafe SSL Renegotiation With Active Directory Servers

We have two active directory (AD) hosts, ead01.domain.com and ead02.domain.com; we also have a corresponding service domain, at eadauth.domain.com which round-robins between these AD hosts (via DNS). ...
2
votes
0answers
128 views

Grant permission to read java home from untrusted java code

I'm loading untrusted code at runtime and for this reason I'm also writing a custom SecurityManager. This untrusted code however lazy-loads some JRE classes that I do not want to block. Would it be ...
1
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0answers
42 views

Diffie Hellman Key Exchange in a messaging application

I'm currently a student that is trying to develop a messaging application on android using java that will implement diffie hellman key exchange in order to ensure that they both will be able to ...
1
vote
0answers
40 views

How to “stealthily” call a Java function to avoid text search?

Assume I am an attacker, I want to call an API function from an Android app, say Build.getRadioVersion(). But I want to keep this call stealthy, i.e., it cannot be searched through, e.g., grep ...
1
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0answers
31 views

Create a signed file from the detached signature and the clear text file content

Assuming I have the following: data.txt data.ps7 (the detached signature) Can I generate the bundled signed file ? Any example would be great, using C#, Java or openssl or any other tool ?
1
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0answers
18 views

How can I protect against cross-build injection and other dependancy management threats in Play Framework?

I am using Play Framework's inbuilt dependancy management to download a library (HTMLUnit), to do this I add the dependancy to the build.sbt file like so: libraryDependencies += ...
1
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0answers
108 views

How can I safely store a password during a user session

I am writing an Java application that is using OAuth to authentificate against a server API. The server is offering the OAuth secrets for users to copy from its website. Because each request needs ...
1
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0answers
84 views

How to use metasploit java exploit with custom payload?

I've been testing Java metasploit exploits on my VMs for some college assignment. I tested exploit/multi/browser/java_atomicreferencearray and it works great but with one of metasploits payloads from ...
1
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0answers
39 views

Renewing certificates in web services using mutual (2-way) authentication

I have a web service (let's call it Service X) which multiple other web services (clients) depend on. Communication between the Service X and any of the clients is done via mutual authentication ...
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0answers
132 views

How to import Comodo certificates into Keystore?

I'm trying to create a Keystore. I've already generated a Private Key, generated and sent a certificate request to a CA (Comodo), and I've received a ZIP file from the CA (Comodo) containing four ...
1
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0answers
53 views

Theory behind certificate for job account

I made it work a job account protected by a certificate in a java spring application but is not that clear to me the minimal steps.(Could you believe that :) I need some theory. Here my steps: ...
1
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0answers
120 views

What is the point of signature file in signed JAR/ZIP files

The way JAR signatures (or ZIP for Android) are designed is that they have a manifest file, containing digest for each file in the archive. Then there is a "signature file" that contains digest of ...
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0answers
92 views

How can I use session salt for encrypting data using AES in CTR mode?

I have to implement a crypto-plugin in Java. The approach followed is conceptually similar to that used for SRTP. The algorithm used for data confidentiality is AES in CTR mode (I'm following a ...
1
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0answers
237 views

Problem in 'underscore.js' “new Function()” when CSP header is set.

In underscore.js, template rendering causes violation of the 'unsafe-eval' property, with CSP error at following line: "render = new Function(settings.variable || 'obj', '_', source);" The solution ...
1
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0answers
127 views

Through signing process with HSM Luna, What device perform the signing?

I'v succesfully configure and test character String signin usign Java and HSM Luna SA through PKCS11. My question is, In wich processor cryptographic operations are perform? In wich way HSM Luna ...
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0answers
71 views

Setup local Certificate Authority & integrate with SCEP

I want setup local Certificate Authority and issue X.509 certificates under my CA. In order to achieve this I am exploring following options such as: OpenSSL/OpenCA BouncyCastle Cryptographic APIs ...
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0answers
383 views

Best approach for storing banking information

I am currently developing an auction desktop application. At the moment I am storing the buyer and vendor information in 2 separate tables within a MySQL Database. Currently the data for these tables ...
1
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0answers
158 views

Need help to Webservice in Axis2 with https in java

I have written my webservice with https. but as per requirement i should provide authentication. so thought of going with https ssl. could any one help me with steps like moving http to https and ssl ...
1
vote
0answers
58 views

Should we allow JSPs to change on a running application server?

Should we allow JSPs to change on a running application server on a production system? My gut feeling is no. However, I can't seem to find any information to justify it. From a performance end, ...
0
votes
0answers
16 views

Securing FTP Creds in a Java Open Source API

I've written a basic Java API and source code must be released to a small community for the application to function correctly. The Java API helps developers track data for their running scripts and ...
0
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0answers
28 views

Web service authorization to specific applications: certificates, embedded secret or both?

My needs are somehow similar to this answer, but I would to be more specific. I have a set of web applications (A and B) that access to a REST service (R). A, B and R could be on the same server or ...
0
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0answers
66 views

JSP shell in the image on Tomcat

I have the server running Tomcat/7.0.52 under Ubuntu. I'm trying to create an image with JSP shell. I wrote the shell like this: <%@ page import="java.io.*" %> <%@ page import="java.util.*" ...
0
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0answers
10 views

Java card 3 connected edition availability

Why I am unable to find any Java card 3 connected edition development kit with smart cards? Does it mean that the connected edition are not manufactured by any company currently? The idea of ...
0
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0answers
74 views

OAUTH 2.0 Authorization Code flow and API key in Authorization header

We are creating Spring Boot REST services that registered third parties can use. We provided the third parties with a unique API key in JWT format, containing authorizations for that party to the ...
0
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0answers
31 views

JAAS Authorization with OSGi

I have a custom permission called SomePermission which extends the BasicPermission class. Also I have following entry in the policy file. grant principal org.sample.jaas.pincipal.SomePrincipal ...
0
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0answers
83 views

How does protection of code and applications work in Java?

I am not sure this kind of question is correct for this place, but I will ask as I can not find a better place to ask. I have started thinking about making money out of my own code and as such it is ...
0
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0answers
47 views

Missing link between Java javax.smartcardio and OpenPGP functionality

As I understand, Yubikey NEO in CCID mode can be used as a SmartCard. I connected it, configured using GnuPG and tested using Kleopatra: encrypted a text file. Is it possible to encrypt data with ...
0
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0answers
22 views

SCEP CertRep SUCCESS: how many certs are in the response?

I am working on an SCEP implementation (both requester and authority). The project uses JScep as a library. During the communication for a PKCSReq the client receives a CertRep SUCCESS. The draft ...
0
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0answers
239 views

Best way to store a password in a text file

We have a WebLogic server (WLS_APP) with a lot of web applications, we also have an Oracle Service Bus (WLS_OSB) with a lot of services deployed on it. We have these services aggregated in proxy ...
0
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0answers
56 views

Apache SSL proxy or Jetty with SSL via keystore to app?

Our team is debating two deployment methods for a RESTful web application. Run the app under http with an embedded Jetty server, but fronted by Apache - Apache would handle the SSL/TLS. Install our ...
0
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0answers
73 views

Java: tokens in memory and garbage collection

I was thinking today about whether this piece of code is secure: String token = <<**token received from REST API call**>> String encryptedToken = Base64.encodeToString(token.getBytes(), ...
0
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0answers
154 views

How to add a certificate chain to a JKS

I want to setup a KeyStore which contains certificate-chains only. This is required by a PKE system which uses the PublicKey of the desired certificate for encryption an then sends the cipher to the ...
0
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0answers
656 views

Multiple user type management - token based authentication

I am currently working on an e-commerce application. The application has different users: Customers Merchants Logistics Admin The current db structure has a different table for each of these user ...