Java-based Web attack installs backdoors on Windows, Linux, Mac computers


By Santhosh Reddy  WILLY :

July 10 , 2012 . 

A new Web-based social engineering attack that relies on malicious Java applets attempts to install backdoors on Windows, Linux and Mac computers, according to security researchers from antivirus vendors F-Secure and Kaspersky Lab.

The attack was detected on a compromised website in Colombia, F-Secure senior analyst Karmina Aquino, said in a blog post on Monday. When users visit the site, they are prompted to run a Java applet that hasn’t been signed by a trusted certificate authority.

If allowed to run, the applet checks which operating system is running on the user’s computer — Windows, Mac OS X or Linux — and drops a malicious binary file for the corresponding platform.

The files are detected by F-Secure as “Backdoor:OSX/GetShell.A,” “Backdoor:Linux/GetShell.A” and “Backdoor:W32/GetShell.A.” Their purpose is to connect to a command-and-control server and look for additional malicious code to download and execute.

However, since F-Secure researchers began monitoring the attack, the remote control server hasn’t pushed any additional code, Aquino said.

It appears that the attack uses the Social Engineer Toolkit (SET), a publicly available tool designed for penetration testers, Aquino said Tuesday via email. However, the chances of this being a penetration test sanctioned by the website’s owner are relatively low.

“I don’t think it’s a penetration test,” Costin Raiu, director of the global research and analysis team at antivirus vendor Kaspersky Lab, said Tuesday via email.

Kaspersky’s researchers are monitoring two separate websites that contain this malware, Raiu said. One is the Colombian website also found by F-Secure, while the second belongs to a water park in Barcelona, Spain.

The presence of the malware on a second website in Spain indicates that this attack is not specific to Colombia or a particular entity, Raiu said.

Kaspersky’s researchers are in the process of analyzing the backdoor-type malware downloaded by the malicious shell code on Windows and Linux.

“The Win32 backdoor is large, about 600KB; the Linux backdoor is over 1MB in size,” Raiu said. “Both appear to contact very complex code which communicates encrypted with other servers.”

This is not the first time that security researchers have discovered a multi-platform attack. In 2010, a similar Java-applet-based social engineering attack capable of executing malicious code on Windows, Mac OS X and Linux computers, was used to distribute the Boonana Trojan program.

“Such multiplatform attacks indicate the fact that Linux and Mac OS X are becoming interesting targets for cybercriminals,” Raiu said.

Other malware authors might move to this type of attacks in the future because it allow them to target more users and distribute their creations more widely, Aquino said.

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Oracle Java SE Critical Patch Update Advisory – July 2012


 

By Santhosh Reddy WILLY :  JULY 2012

Description

A Critical Patch Update is a collection of patches for multiple security vulnerabilities. The Critical Patch Update for Java SE also includes non-security fixes. Critical Patch Updates are cumulative and each advisory describes only the security fixes added since the previous Critical Patch Update. Thus, prior Critical Patch Update Advisories should be reviewed for information regarding earlier accumulated security fixes. Please refer to:

Critical Patch Updates and Security Alerts for information about Oracle Security Advisories.

Due to the threat posed by a successful attack, Oracle strongly recommends that customers apply CPU fixes as soon as possible. This Critical Patch Update contains 14 new security fixes across Java SE products.

Supported Products Affected

Security vulnerabilities addressed by this Critical Patch Update affect the products listed in the categories below.  Please click on the link in the Patch Availability column or in the Patch Availability Table to access the documentation for those patches.

Affected product releases and versions:

Java SE Patch Availability
JDK and JRE 7 Update 4 and earlier Java SE
JDK and JRE 6 Update 32 and earlier Java SE
JDK and JRE 5.0 Update 35 and earlier Java SE
SDK and JRE 1.4.2_37 and earlier Java SE
JavaFX 2.1 and earlier JavaFX

Patch Availability Table and Risk Matrix

Java SE fixes in this Update are cumulative; the latest Critical Patch Update includes all fixes from the previous Critical Patch Updates.

Patch Availability Table

Product Group Risk Matrix Patch Availability and Installation Information
Oracle Java SE Oracle JDK and JRE Risk Matrix


Risk Matrix Content

The risk matrix lists only security vulnerabilities that are newly fixed by the patches associated with this advisory. Risk matrices for previoussecurity fixes can be found in previous Critical Patch Update advisories.

Security vulnerabilities are scored using CVSS version 2.0 (see Oracle CVSS Scoring for an explanation of how Oracle applies CVSS 2.0). Oracle conducts an analysis of each security vulnerability addressed by a Critical Patch Update (CPU). Oracle does not disclose information about the security analysis, but the resulting Risk Matrix and associated documentation provide information about the type of vulnerability, the conditions required to exploit it, and the potential result of a successful exploit. Oracle provides this information, in part, so that customers may conduct their own risk analysis based on the particulars of their product usage. As a matter of policy, Oracle does not disclose detailed information about an exploit condition or results that can be used to conduct a successful exploit. Oracle will not provide additional information about the specifics of vulnerabilities beyond what is provided in the CPU or Security Alert notification, the Patch Availability Document, the readme files, and FAQs. Oracle does not provide advance notification on CPUs or Security Alerts to individual customers. Finally, Oracle does not distribute exploit code or “proof-of-concept” code for product vulnerabilities.

Workarounds

Due to the threat posed by a successful attack, Oracle strongly recommends that customers apply CPU fixes as soon as possible. Until you apply the CPU fixes, it may be possible to reduce the risk of successful attack by restricting network protocols required by an attack. For attacks that require certain privileges or access to certain packages, removing the privileges or the ability to access the packages from unprivileged users may help reduce the risk of successful attack. Both approaches may break application functionality, so Oracle strongly recommends that customers test changes on non-production systems. Neither approach should be considered a long-term solution as neither corrects the underlying problem.

Skipped Critical Patch Updates

Oracle strongly recommends that customers apply fixes as soon as possible. For customers that have skipped one or more Security advisories, please review previous advisories to determine appropriate actions.

Unsupported Products and De-Supported Versions

Unsupported products, releases and versions are not tested for the presence of vulnerabilities addressed by this Critical Patch Update. However, it is likely that earlier versions of affected releases are also affected by these vulnerabilities. Hence Oracle recommends that customers upgrade their Oracle products to a supported version.

Critical Patch Update patches are not provided for product versions that are no longer supported. We recommend that customers upgrade to the latest supported version of Oracle products in order to obtain patches.

Credit Statement

The following people or organizations reported security vulnerabilities addressed by this Critical Patch Update to Oracle: Adam Gowdiak of Security Explorations; Andrei Costin via Secunia; Chris Ries via TippingPoint; and Clayton Smith of Entrust.

Oracle Java SE Critical Patch Update Schedule

The next three dates for Oracle Java SE Critical Patch Updates are:

  • 16 October 2012
  • 19 February 2013
  • 18 June 2013

References

Modification History

Date Comments
2012-June-12 Rev 1. Initial Release

Appendix – Oracle Java SE

Oracle Java SE Executive Summary

This Critical Patch Update contains 14 new security fixes for Oracle Java SE.  12 of these vulnerabilities may be remotely exploitable without authentication, i.e., may be exploited over a network without the need for a username and password.  The English text form of this Risk Matrix can be found here.

The CVSS scores below assume that a user running a Java applet or Java Web Start application has administrator privileges (typical on Windows). When the user does not run with administrator privileges (typical on Solaris and Linux), the corresponding CVSS impact scores for Confidentiality, Integrity, and Availability are “Partial” instead of “Complete”, lowering the CVSS Base Score. For example, a Base Score of 10.0 becomes 7.5.

For issues in Deployment, fixes are only made available for JDK and JRE 7 and 6. Users should use the default Java Plug-in and Java Web Start in the latest JDK and JRE 7 or 6 releases.

My Oracle Support Note 360870.1 explains the impact of Java security vulnerabilities on Oracle products that include an Oracle Java SE JDK or JRE.

Oracle Java SE Risk Matrix

CVE# Component Protocol Sub-
component
Remote Exploit without Auth.? CVSS VERSION 2.0 RISK (see Risk Matrix Definitions) Supported Versions Affected Notes
Base Score Access Vector Access Complexity Authen-
tication
Confiden-
tiality
Integrity Avail-
ability
CVE-2012-1713 Java Runtime Environment Multiple 2D Yes 10.0 Network Low None Complete Complete Complete 7 Update 4 and before, 6 Update 32 and before, 5 Update 35 and before, 1.4.2_37 and before.
JavaFX 2.1 and before
See Note 1
CVE-2012-1721 Java Runtime Environment Multiple Deployment Yes 10.0 Network Low None Complete Complete Complete 7 Update 4 and before, 6 Update 32 and before See Note 2
CVE-2012-1722 Java Runtime Environment Multiple Deployment Yes 10.0 Network Low None Complete Complete Complete 7 Update 4 and before, 6 Update 32 and before See Note 2
CVE-2012-1723 Java Runtime Environment Multiple Hotspot Yes 10.0 Network Low None Complete Complete Complete 7 Update 4 and before, 6 Update 32 and before, 5 Update 35 and before, 1.4.2_37 and before See Note 2
CVE-2012-1725 Java Runtime Environment Multiple Hotspot Yes 10.0 Network Low None Complete Complete Complete 7 Update 4 and before, 6 Update 32 and before, 5 Update 35 and before See Note 2
CVE-2012-1716 Java Runtime Environment Multiple Swing Yes 10.0 Network Low None Complete Complete Complete 7 Update 4 and before, 6 Update 32 and before, 5 Update 35 and before See Note 2
CVE-2012-1711 Java Runtime Environment Multiple CORBA Yes 7.5 Network Low None Partial Partial Partial 7 Update 4 and before, 6 Update 32 and before, 5 Update 35 and before, 1.4.2_37 and before See Note 2
CVE-2012-1726 Java Runtime Environment Multiple Libraries Yes 6.4 Network Low None Partial Partial None 7 Update 4 and before See Note 2
CVE-2012-0551 Java Runtime Environment Multiple Deployment Yes 5.8 Network Medium None Partial None Partial 7 Update 4 and before, 6 Update 32 and before See Note 2
CVE-2012-1719 Java Runtime Environment Multiple CORBA Yes 5.0 Network Low None None Partial None 7 Update 4 and before, 6 Update 32 and before, 5 Update 35 and before, 1.4.2_37 and before See Note 2
CVE-2012-1724 Java Runtime Environment Multiple JAXP Yes 5.0 Network Low None None None Partial 7 Update 4 and before, 6 Update 32 and before See Note 1
CVE-2012-1718 Java Runtime Environment Multiple Security Yes 5.0 Network Low None None None Partial 7 Update 4 and before, 6 Update 32 and before, 5 Update 35 and before, 1.4.2_37 and before See Note 1
CVE-2012-1720 Java Runtime Environment Multiple Networking No 3.7 Local High None Partial Partial Partial 7 Update 4 and before, 6 Update 32 and before, 5 Update 35 and before, 1.4.2_37 and before See Note 3
CVE-2012-1717 Java Runtime Environment Multiple Java Runtime Environment No 2.1 Local Low None Partial None None 7 Update 4 and before, 6 Update 32 and before, 5 Update 35 and before, 1.4.2_37 and before See Note 4

Notes:

  1. Applies to client and server deployment of Java. This vulnerability can be exploited through untrusted Java Web Start applications and untrusted Java applets. It can also be exploited by supplying data to APIs in the specified Component without using untrusted Java Web Start applications or untrusted Java applets, such as through a web service.
  2. Applies to client deployment of Java only. This vulnerability can be exploited only through untrusted Java Web Start applications and untrusted Java applets. (Untrusted Java Web Start applications and untrusted applets run in the Java sandbox with limited privileges.)
  3. Applies to server deployment of Java on Solaris only.
  4. Applies to printing on the Solaris and Linux platforms. This vulnerability cannot be exploited through untrusted Java Web Start applications or untrusted Java applets. It also cannot be exploited by supplying data to APIs in the specified Component without using untrusted Java Web Start applications or untrusted Java applets, such as through a web service.

JAVA CERTIFICATION PROGRAMMING


Oracle Headquarters

Oracle Headquarters (Photo credit: Peter Kaminski)

OCAJP & OCPJP – ORACLE JAVA 7 CERTIFICATION

BY , Santhosh Reddy WILLY

Oracle released a new certification exame for Java 7.

At the moment there are just 2 certification:

  • Oracle Certified Associate, JAVA SE 7 Programmer
  • Oracle Certified Professional, JAVA SE 7 Programmer

As usual, Associate certification is a pre-requisit of Professional certification.

ORACLE CERTIFIED ASSOCIATE (OCAJP)

  1. 90 Questions
  2. 150 minutes
  3. 75% To be passed
  4. 238€

ORACLE CERTIFIED ASSOCIATE (OCPJP)

  1. 120-150 Questions
  2. 2.5 – 3 Hours
  3. TBD To be passed
  4. 39€

The OCPJP is the equivalent of SCJP but for Java 7

READ FULL ARTICLE : https://j2sejava.wordpress.com/java-certification-program/

THANK YOU 🙂

ORACLE CERTIFICATION PROGRAM


ORACLE CERTIFICATION PROGRAMMING CHANGED .

Java Certification Exams and Their Move to Pearson VUE

 

ACTION REQUIRED
It is important that you create a Pearson VUE account now so that you can continue to register for Oracle Certification exams:

  • Go to MyAccount on Pearson VUE and select Create A New Web Account and follow the prompts to create a profile and enter your contact information. See our tutorial video as well as these detailed steps for reference.
    • Please note that your Prometric exam history will not show in your Pearson VUE account. Sun Certification history will soon be available to candidates at CertView. Please visit the Oracle Certification Blog for continued updates.
  • IMPORTANT: Be sure to enter your profile and contact information on the next screens as it exists in your Oracle profile at CertManager, as the system will perform an automated process to match the record you are creating with the record that was uploaded from Oracle.
    • If Pearson VUE is not able to match your record, you will be placed in a queue and will be contacted by Pearson VUE within 72 hours for verification.

Also, if you schedule a Java, Oracle Solaris (Cluster), MySQL, or NetBeans exam with Pearson VUE between May 16, 2011 and August 1, 2011, you will receive access to a set of practice questions at no cost. For more information, view our full announcement and Frequently Asked Questions online at certification.oracle.com.

You may be aware that Oracle recently migrated all Sun-branded certification exams from Prometric to Pearson VUE. Below are answers to some frequently-asked questions that we’ve been getting recently:

For more details certification menu on the top of the page

METHOD OVERLOADING


METHOD OVERLOADING IS THE PROCESS OF DEFINING THE SAME METHOD NAME WITHIN A CLASS BUT DEFINING DIFFERENT FORMAL PARAMETERS. THAT IS, THE METHOD NAME SHOULD BE SAME BUT THE SIGNATURE SHOULD NOT BE SAME

HERE YOU CAN GET A CLEAR IDEA WITH BEST EXAMPLE WITH DIFFERENT APPROACHES AND QUESTIONS ON METHOD OVERLOADING .

CAN WE OVERLOAD THE main() method?????

METHOD OVERLOADING MEETS TYPE CASTING ????

FOR MORE EXPLANATION . CHECH OUT THE TOPIC METHOD OVERLOADING BESIDE IN THE PAGES SECTION. 🙂

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