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1Z0-108 Oracle WebLogic Server 10g System Administration

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1Z0-108 exam Dumps Source : Oracle WebLogic Server 10g System Administration

Test Code : 1Z0-108
Test appellation : Oracle WebLogic Server 10g System Administration
Vendor appellation : Oracle
: 141 existent Questions

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Oracle Oracle WebLogic Server 10g

Oracle app server hack let one attacker mine $226,000 worth of cryptocoins | killexams.com existent Questions and Pass4sure dumps

If "java" suddenly dies on your WebLogic or PeopleSoft server, you may be getting mined for Monero.If "java" unexpectedly dies on your WebLogic or PeopleSoft server, you may well be getting mined for Monero. David Cairns / Getty images reader feedback with 24 posters collaborating Share this story
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  • In a record published on January 7 through SANS know-how Institute, Morphus Labs researcher Renato Marinho published what appears to be an ongoing international hacking crusade through assorted attackers towards PeopleSoft and WebLogic servers that leverages an internet software server vulnerability patched by using Oracle late closing yr.

    additional analyzing Oracle rushes out 5 patches for vast vulnerabilities in PeopleSoft app server

    These attackers don't seem to be stealing statistics from victims, despite the fact—at least as far as any one can tell. as an alternative, the pick advantage of is being used to mine cryptocurrencies. in a separate case, according to evaluation posted today by means of SANS Dean of analysis Johannes B. Ullrich, the attacker netted at the least 611 Monero coins (XMR)—$226,000 dollars' charge of the cryptocurrency.

    The assaults emerge to hold leveraged a proof-of-conception contour the most of the Oracle vulnerability posted in December by chinese language protection researcher Lian Zhang. almost immediately after the proof of conception turned into posted, there hold been studies of it getting used to set up cryptominers from a few diverse places—assaults launched from servers (a few of them likely compromised servers themselves) hosted via Digital Ocean, GoDaddy, and Athenix.

    "The victims are allotted global," wrote Ullrich. "This isn’t a targeted attack. as soon as the contour the most became posted, anybody with restricted scripting competencies turned into able to participate in taking down WebLogic/PeopleSoft servers."

    in the case of the assault documented by Marinho, the attacker Put in a cogent Monero mining software package called xmrig on 722 susceptible WebLogic and PeopleSoft techniques—a lot of them running on public cloud services, according to Ulrich. greater than 140 of those programs hold been in the Amazon internet capabilities public cloud, and smaller numbers of servers hold been on other internet hosting and cloud capabilities—including roughly 30 on Oracle's personal public cloud provider.

    The exploit code makes scanning for susceptible programs primary, so the entire universe of publicly uncovered, unpatched Oracle internet application servers could rapidly Fall victim to those and other assaults. On the vivid side, some of those surreptitious mining efforts were detected exceptionally right away because the script used to "drop" the mining utensil additionally killed the "java" system on the targeted servers—pretty much shutting down the application server and drawing short attention from directors.

    The installer used in the documented Monero assault became a simple bash script. It considerations instructions to are searching for out and slay different blockchain miners that may hold arrived before it, and it units up a CRON job to download and launch the miner device with the end to maintain its foothold intact.

    Ullrich warned that victims shouldn't without problems halt their response to these intrusions by passage of patching their servers and putting off the mining software. "It is awfully workable that greater subtle attackers used this to gain a persistent foothold on the equipment. in this case, the only 'persistence' they noticed changed into the CRON job. however there are many extra, and greater problematic to become awake of, how you can profit persistence."


    1Z0–333: Oracle WebLogic Server 12c Administration I | killexams.com existent Questions and Pass4sure dumps

    The appellation of this test is Oracle WebLogic Server 12c Administration I elements of implementation. The number of tests 1Z0–333 examination this. This evaluation includes a complete variety of seventy six questions. The time limit for completion of this check is 120 minutes. Certification associated with this test is the OPN certified professional Oracle WebLogic Server 12c Administration I. The passing ranking for this exam is 60%. This verify is usually tested with Oracle launched 12C. charge for this perceive at various is round $ 245, and this test is attainable with a selection of format.

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    Oracle Launches WebLogic Server 10g three | killexams.com existent Questions and Pass4sure dumps

    news

    Oracle Launches WebLogic Server 10g three
  • by Becky Nagel
  • 08/eleven/2008
  • After Oracle received BEA systems in April, the industry introduced that it might be integrating key BEA application into Oracle's Fusion utility line to create "subsequent-technology" middleware. nowadays Oracle launched a key a piece of that approach via launching Oracle WebLogic Server 10g 3, the latest novel release of what changed into BEA's flagship net server utility mixed with expertise from Oracle's items.

    Oracle is touting the application's flexibility through novel and/or improved aid for Java SE 6, commercial enterprise JavaBeans (EJB) three.0, Struts/Spring (amongst different frameworks), XML/AJAX plus net requisites necessary to champion SOA implementations -- a key company enviornment Oracle wants to trap. different novel points, based on the company, encompass stronger excessive-availability, "FastSwap" performance, more suitable diagnostics tools and, of course, constructed-in integration with a few Oracle products, including Coherence and industry supervisor.

    Two versions of WebLogic Server 10g 3 are being provided: enterprise and normal. according to Oracle, the industry edition of WebLogic Server 10g 3 will serve as the "cornerstone" of its 5-product WebLogic Suite. The utility is too being included in the company's SOA, BPM and WebCenter suites.

    "The accelerated unencumber of Oracle WebLogic Server 10g R3 demonstrates their commitment to BEA valued clientele to right away deliver novel integrations with Oracle Fusion Middleware," mentioned Thomas Kurian, senior vice president, Oracle Fusion Middleware. "because the No. 1 middleware provider, they plot to continue providing a complete and pre-integrated middleware suite that permits their shoppers to forward and deploy applications on the information superhighway."

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    Oracle WebLogic Server 10g System Administration

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    Oracle Application Server 10g administration handbook: Distributed Configuration Management | killexams.com existent questions and Pass4sure dumps

    The following is the final piece of a six-part chain on Oracle Application Server 10g administration. Each tip is excerpted from the Osborne Oracle Press book, "Oracle Application Server 10g administration handbook," by John Garmany and Don Burleson. Check back frequently for the next installment, or fade to the main chain page for flagrant installments.

    Distributed Configuration Management

    The Distributed Configuration Management utility can be used instead of EM for some management activities, but not all. The dcmctl utility only manages the OHS/OC4J portion of the instance. It can be used within scripts to automate maintenance functions. If you are working with one instance, you will either necessity to pass dcmctl, the instance's ORACLE_HOME variable, or set it before executing the command. To avoid confusion, it is beneficial practice to always set environmental variables in the script before executing either opmnctl or dcmctl. In a cluster environment, failure to set the appropriate ORACLE_HOME could result in making changes to the wrong instance. You can too employ the environment variable ORACLE_DCM_JVM_ARGS to pass arguments to the Java Virtual Machine.

    The dcmctl utility can be started so that commands can be directly entered using the command shell.

    $ dcmctl shell dcmctl> createcomponent -ct oc4j -co OC4J_T2 dcmctl> exit $ Dcmctl too has an extensive wait on listing obtained with the wait on argument. $ dcmctl help Dcmctl arguments are made up of a one-word command and a set of options, flagrant of which are case insensitive. Options start with a dash, followed by the option in short or long format, followed by the option's arguments. In the previous example, the command is createcomponent and the options are –ct and –co. First, let's debate the options available and then introduce the commands. Options hold a long and short format: Short Format Long Format Description -a -application Application name -cl -cluster Cluster name -co -component Component name -ct -componenttype Component type -i -instance Instance appellation (Oracle9iAS Instance) -d -debug Print stack vestige on exception -l -logdir Location for the error log log.xml -o -oraclehome ORACLE_HOME for that command -t -timeout Max time to complete command (default: 45sec) -v -verbose Verbose listing of situation and error messages

    Now that they hold defined the options, you can initiate using the commands. Since dcmctl is used mostly within scripts, you necessity to be able to start and halt the instances/components. The following command starts the porta904 instance. Notice that they employ the fully qualified instance name.

    $ dcmctl start -i porta904.appsvr.localdomain.com Current situation for Instance:porta904.appsvr.localdomain.com Component character Up Status In Sync Status ======================================================================= 1 HTTP_Server HTTP_Server Up True 2 OC4J_Demos OC4J Up True 3 OC4J_Portal OC4J Up True 4 OC4J_Testing OC4J Up True 5 OC4J_Wireless OC4J Up True 6 home OC4J Up True The dcmctl utility starts the instance and then provides a list of the current state. To halt the instance, you hold two options, the halt command or the shutdown command. The shutdown command is used to halt the instance and OPMN/DCM, and is used to shut everything down before restarting or shutting down the server. The restart command will start an already down system, or shut down and restart a running system. Lastly, the getstate command returns the situation of the instance/component. $ dcmctl halt -co OC4J_Testing Current situation for Instance:porta904.appsvr.localdomain.com Component character Up Status In Sync Status ======================================================================= 1 OC4J_Testing OC4J Down True Here, they halt the OC4J_Testing container using dcmctl. One dcmctl command has already been introduced a number of times in previous chapters and at the birth of this chapter. If you manually change a configuration file, you must update the repository using the updateConfig command. $dcmctl updateConfig This command reads the configuration files and updates the repository data. You can specify the container as OHS or OC4J with the –co option. The default is both.

    Go to the main chain page.

    About the authors

    A senior Oracle trainer with Burleson Consulting, John Garmany is too a respected Oracle expert and author and chosen by Oracle Press to write the "officially authorized edition" for the "Oracle Application Server 10g administration handbook." John too serves as a writer for DBAZine, "Oracle Internals" and has authored several favorite Oracle books.

    Don Burleson is one of the world's top Oracle database experts with more than 20 years of full-time DBA experience. He specializes in creating database architectures for very big online databases and he has worked with some of the world's most powerful and involved systems. Don's professional Web sites comprise www.dba-oracle.com and www.remote-dba.net.


    Oracle WebLogic RCE Deserialization Vulnerability (CVE-2018-2628) | killexams.com existent questions and Pass4sure dumps

    On April 17, Oracle released the quarterly faultfinding Patch Update (CPU) advisory. Among the 254 novel security fixes, the CPU too contained a fix for the faultfinding WebLogic server vulnerability CVE-2018-2628. This is a Java deserialization vulnerability in the core components of the WebLogic server and, more specifically, it affects the T3 proprietary protocol.

    According to the advisory, the CVE-2018-2628 is a high-risk vulnerability that scores 9.8 in the CVSS v3 system. This score is typical for RCE vulnerabilities that allow attackers to fully compromise a system by remotely executing code without authentication. The vulnerability was reported by Liao Xinxi of the NSFOCUS Security Team as well as a researcher by the appellation loopx9.

    On April 18, multiple users on GitHub released proof of concept (POC) exploit code against this flaw. Soon after, reports indicated increased scanning activity for vulnerable, unpatched servers.

    According to Oracle, the following WebLogic server releases are affected:

  • 10.3.6.0
  • 12.1.3.0
  • 12.2.1.2
  • 12.2.1.3
  • In order to apply Oracle's CPU, WebLogic customers must download the corresponding PSU updates from Oracle's champion site and install the patch using Smart Update or OPatch. The following PSUs correspond to Oracle's April 2018 CPU:

  • PSU 10.3.6.0.180417
  • PSU 12.1.3.0.180417
  • PSU 12.2.1.2.180417
  • PSU 12.2.1.3.180417
  • For more information gratify consult Doc ID 1470197.1 from the Oracle champion site.

    This is not the first time that WebLogic was create to be vulnerable to a deserialization vulnerability. In November 2015, Oracle fixed CVE-2015-4852, another Java deserialization flaw in WebLogic. In October 2017, Oracle fixed CVE-2017-10271, an XML deserialization vulnerability which attackers hold been exploiting to download cryptocurrency miners in victim systems.

    Despite the fact that the April CPU contained a fix for the newly discovered CVE-2018-2628, researchers create ways around this patch. The protection bypass was inevitable because Oracle patched WebLogic by implementing a blacklist.

    Using a blacklist approach has unavoidable benefits such as effortless configuration and is less likely to occasions functional issues. However, blacklisting is a terrible security strategy. A blacklist is bound to be incomplete (see CWE-184) and requires constant maintenance. When adopting a blacklist approach for protection, developers are playing the Whac-a-Mole game and are committing to maintain the blacklist for every known exploit in order to be effectual at scale.

    Technical Analysis

    Let's espy how Oracle's blacklist works for CVE-2015-4852 and CVE-2018-2628.

    The following packages are blacklisted and are not allowed to be deserialized:

  • org.apache.commons.collections.functors
  • com.sun.org.apache.xalan.internal.xsltc.trax
  • javassist
  • Initially, as a protection to CVE-2015-4852, only the following classes were blacklisted:

  • org.codehaus.groovy.runtime.ConvertedClosure
  • org.codehaus.groovy.runtime.ConversionHandler
  • org.codehaus.groovy.runtime.MethodClosure
  • In subsequent releases, this blacklist was extended to disallow these classes as well:

  • org.springframework.transaction.support.AbstractPlatformTransactionManager
  • sun.rmi.server.UnicastRef
  • Note that these are the packages and classes that are blacklisted by default. WebLogic administrators hold the option to extend these lists.

    These packages and classes were blacklisted because they are used as gadgets by known gadget chains (exploits). Blacklisting these gadgets allows Oracle to protect WebLogic against known POC exploits but this action does not remediate the issue but does avoid re-architecting the whole component.

    Sophisticated attackers can bypass the blacklist by creating gadget chains with different sets of gadgets. One exploitation technique that authors hold in their arsenal is the employ of dynamic proxies.

    Specifically for CVE-2018-2628, Oracle added one more protection based on a blacklist approach. This time, a specific blacklist was added at the deserialization of InboundMsgAbbrev instances that terminates the process if the instance implements the java.rmi.registry.Registry interface.

    In other words, this protection disallows the employ of exploits (gadget chains) that employ dynamic proxies that implement the Registry interface in site of a legitimate InboundMsgAbbrev instance.

    The employ of the dynamic proxy can be seen in the following stack vestige that shows the RCE assault in action:

    java.lang.Runtime.exec()sun.reflect.NativeMethodAccessorImpl.invoke()sun.reflect.DelegatingMethodAccessorImpl.invoke()java.lang.reflect.Method.invoke()org.apache.commons.collections.functors.InvokerTransformer.transform()org.apache.commons.collections.functors.ChainedTransformer.transform()org.apache.commons.collections.map.LazyMap.get()sun.reflect.annotation.AnnotationInvocationHandler.invoke()$Proxy56.entrySet()sun.reflect.annotation.AnnotationInvocationHandler.readObject()sun.reflect.NativeMethodAccessorImpl.invoke()sun.reflect.DelegatingMethodAccessorImpl.invoke()java.lang.reflect.Method.invoke()java.io.ObjectStreamClass.invokeReadObject()java.io.ObjectInputStream.readSerialData()java.io.ObjectInputStream.readOrdinaryObject()java.io.ObjectInputStream.defaultReadFields()java.io.ObjectInputStream.readSerialData()java.io.ObjectInputStream.readOrdinaryObject()java.io.ObjectInputStream.readObject()sun.rmi.transport.StreamRemoteCall.executeCall()sun.rmi.server.UnicastRef.invoke()sun.rmi.transport.DGCImpl_Stub.dirty()sun.rmi.transport.DGCClient$EndpointEntry.makeDirtyCall()sun.rmi.transport.DGCClient$EndpointEntry.access$1600()sun.rmi.transport.DGCClient$EndpointEntry$RenewCleanThread.run()java.lang.Thread.run()java.lang.Thread.begin()java.lang.Thread.invokeRun()java.lang.Thread$ThreadHandler.invokeRun()

    The above stack vestige was captured in a POC assault that uses the JRMPClient and CommonsCollections1 ysoserial payloads on a Java 6u21 and WebLogic 10.3.6 system.

    In a vulnerable system, WebLogic administrators can identify workable Java deserialization attacks if similar exceptions are seen in their WebLogic logs:

  • java.lang.ClassCastException: $Proxy56 cannot be cast to weblogic.rjvm.ClassTableEntr
  • java.io.InvalidObjectException: Unauthorized proxy deserialization
  • The problem with blacklisting the java.rmi.registry.Registry interface from the deserialization of the InboundMsgAbbrev instance is that attackers can simply supplant the blacklisted interface with another interface. Deserialization gadget chains are enjoy words in a Scrabble game. If a particular word cannot be used, another word can potentially be used to achieve the same goal.

    On April 29, several security researchers, such as @pyn3rd, claimed that they hold successfully bypassed WebLogic's Registry interface blacklisting by using different gadgets.

    Remediation

    As of now, Oracle has not released another patch update for this CVE. Despite the fact that researchers pretense to hold bypassed Oracle's April CPU fix for CVE-2018-2628, users should by no means be discouraged from installing the April CPU.

    One passage to toughen the system against gadget chains is to employ the latest JDK. The publicly available RCE POC exploits depend on older versions of the JDK. Upgrading the JDK is not a complete remediation of the issue but it is highly advisable to Do since it deactivates the known POC exploits. Based on experiments, the minimum JDK versions that should be used are the ones that were released as piece of the October 2015 CPU; namely: 6u111, 7u91, and 8u65. Note that it is recommended to install the JDK of the latest April 2018 CPU.

    Another judgement to upgrade the latest JDK is that it will allow you to employ the JEP-290 Serialization Filtering mechanism. Using the process-wide global filter administrators can define their own whitelists for deserialization. WebLogic too has its own system properties that allow users to specify their own filters. Consult the Oracle documentation on how to set up the weblogic.oif.serialFilter property.

    Security administrators could even consider blocking or filtering incoming connections to WebLogic's admin port, which, by default, is 7001.

    The employ of a Web Application Firewall could too be helpful but beware of the inaccurate positives since most of these solutions employ pattern and signature matching. These heuristic approaches are never fully accurate and, in effect, they simply proffer another passage of performing filtering (blacklisting and/or whitelisting). This character of filtering is even less accurate compared to the JEP-290 Serialization Filtering mechanism of the JRE.

    Topics:

    security ,cybersecurity ,web application security ,java security


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    WLSDM is an enterprise “WebLogic console extension” which enables monitoring for WebLogic JMX MBean metrics, flagrant the WebLogic domain assets (Health, Servers, Applications, Data Sources, JMS… etc.) and back-end systems monitoring (JDBC, EJB, JAXWS WebServices, Servlets). It is very effortless to create alarm and notification definitions by using WLSDM metric browser. WLSDM can store any WebLogic metric values historically and too can generate graphical reports. WLSDM is a WebLogic Console extension and runs under WebLogic console on Admin server.

    1. Monitor WebLogic Health States2. Monitor WebLogic JVM System Resources3. Monitor WebLogic Servers4. Monitor Response Times5. Monitor Back-end Systems6. Monitor Profiling Dumps7. List Previous Health Notifications8. List Metric Notifications9. List Log Inspector Notifications10. List Response Times Notifications11. Monitor Logs by Log Viewer and Tailer12. Manage Files by File Explorer13. race WebLogic Scripts on WLST Web Console14. Monitor WLSDM Agents15. Monitor WebLogic and Application Log Files16. Add Action/Script and Scheduler Definition17. Check HTML Email Notifications sent by WLSDM

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