|Exam Name||:||Oracle WebLogic Server 10g System Administration|
|Questions and Answers||:||141 Q & A|
|Updated On||:||February 15, 2019|
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In a file posted on January 7 with the aid of SANS technology Institute, Morphus Labs researcher Renato Marinho printed what seems to be an ongoing global hacking crusade via dissimilar attackers towards PeopleSoft and WebLogic servers that leverages a web application server vulnerability patched by Oracle late ultimate yr.extra analyzing Oracle rushes out 5 patches for large vulnerabilities in PeopleSoft app server
These attackers aren't stealing facts from victims, youngsters—at least as far as any person can tell. in its place, the make the most is being used to mine cryptocurrencies. in a single case, in line with analysis posted nowadays with the aid of SANS Dean of analysis Johannes B. Ullrich, the attacker netted at the least 611 Monero coins (XMR)—$226,000 dollars' value of the cryptocurrency.
The assaults appear to have leveraged a proof-of-thought make the most of the Oracle vulnerability published in December by chinese safety researcher Lian Zhang. almost immediately after the proof of thought became posted, there were experiences of it getting used to set up cryptominers from a few distinct locations—attacks launched from servers (a few of them seemingly compromised servers themselves) hosted through Digital Ocean, GoDaddy, and Athenix.
"The victims are disbursed worldwide," wrote Ullrich. "This isn’t a focused assault. once the take advantage of became published, anybody with limited scripting capabilities changed into able to take part in taking down WebLogic/PeopleSoft servers."
within the case of the assault documented by using Marinho, the attacker put in a valid Monero mining application package referred to as xmrig on 722 prone WebLogic and PeopleSoft methods—many of them operating on public cloud capabilities, in line with Ulrich. greater than a hundred and forty of these programs have been in the Amazon net services public cloud, and smaller numbers of servers have been on other hosting and cloud features—including roughly 30 on Oracle's own public cloud service.
The exploit code makes scanning for prone programs elementary, so the whole universe of publicly uncovered, unpatched Oracle internet software servers may instantly fall sufferer to these and other assaults. On the vivid side, some of these surreptitious mining efforts had been detected surprisingly straight away because the script used to "drop" the mining tool additionally killed the "java" technique on the targeted servers—almost shutting down the utility server and drawing quick consideration from directors.
The installer used in the documented Monero assault changed into a simple bash script. It considerations instructions to are seeking out and kill different blockchain miners that may have arrived before it, and it units up a CRON job to down load and launch the miner device with a purpose to keep its foothold intact.
Ullrich warned that victims mustn't without problems end their response to those intrusions with the aid of patching their servers and removing the mining software. "It is very probably that more subtle attackers used this to gain a persistent foothold on the system. in this case, the handiest 'persistence' we observed changed into the CRON job. but there are lots of more, and greater complicated to notice, ways to profit persistence."
newsOracle Launches WebLogic Server 10g 3
After Oracle acquired BEA programs in April, the business announced that it might be integrating key BEA software into Oracle's Fusion application line to create "subsequent-technology" middleware. these days Oracle released a key a part of that method via launching Oracle WebLogic Server 10g three, the newest generation of what was BEA's flagship web server software combined with technology from Oracle's items.
Oracle is touting the software's flexibility via new and/or better support for Java SE 6, enterprise JavaBeans (EJB) 3.0, Struts/Spring (among other frameworks), XML/AJAX plus internet requirements needed to assist SOA implementations -- a key enterprise area Oracle desires to seize. different new aspects, in line with the company, encompass improved high-availability, "FastSwap" functionality, more advantageous diagnostics equipment and, of direction, constructed-in integration with a few Oracle items, together with Coherence and commercial enterprise manager.
Two versions of WebLogic Server 10g 3 are being provided: business and usual. based on Oracle, the commercial enterprise edition of WebLogic Server 10g 3 will serve because the "cornerstone" of its 5-product WebLogic Suite. The utility is also being protected within the company's SOA, BPM and WebCenter suites.
"The accelerated release of Oracle WebLogic Server 10g R3 demonstrates our commitment to BEA customers to at once deliver new integrations with Oracle Fusion Middleware," talked about Thomas Kurian, senior vice chairman, Oracle Fusion Middleware. "because the No. 1 middleware issuer, we plan to proceed offering a complete and pre-built-in middleware suite that permits our valued clientele to enhance and set up applications on the information superhighway."
extra information can be found right here .
ahead of their joint press conference later nowadays, Microsoft and Oracle introduced a brand new partnership that allows you to bring a number of Oracle products to home windows Server and the business’s Azure cloud computing platform. These Oracle products encompass Java, Oracle Database and Oracle WebLogic Server.
starting nowadays, Oracle clients can run supported Oracle application on windows Server Hyper-V and in home windows Azure. Oracle additionally now offers license mobility for consumers who wish to run its utility on Azure and produce Oracle Linux to Azure.
Microsoft, nevertheless, will offer Java in home windows Azure and will quickly add Infrastructure services circumstances with configurations for Oracle Java, Oracle Database and WebLogic Server to the windows Azure graphic gallery.
As Microsoft’s Satya Nadella, Microsoft’s president of its server and tools business notes within the company’s announcement today, he believes that “this partnership will assist valued clientele embody cloud computing via improving flexibility and selection whereas additionally retaining the primary-type assist that these workloads demand.”
Oracle president Mark Hurd echoes this commentary and additionally notes that Oracle is “dedicated to offering greater alternative and suppleness to valued clientele with the aid of providing numerous deployment options for our utility, together with on-premises, in addition to public, private, and hybrid clouds. This collaboration with Microsoft extends our partnership and is essential for the improvement of our customers.”
It’s worth noting that Amazon internet features also offers a few Oracle business options for its purchasers. The partnership with Microsoft, despite the fact, looks to head a little bit past this and, for essentially the most half, covers a special set of services.
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The following is the final part of a six-part series 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 go to the main series page for all 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 need to pass dcmctl, the instance's ORACLE_HOME variable, or set it before executing the command. To avoid confusion, it is good 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 also use 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 also has an extensive help listing obtained with the help argument. $ dcmctl help Dcmctl arguments are made up of a one-word command and a set of options, all 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 discuss the options available and then introduce the commands. Options have 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 name (Oracle9iAS Instance) -d -debug Print stack trace 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 state and error messages
Now that we have defined the options, you can begin using the commands. Since dcmctl is used mostly within scripts, you need to be able to start and stop the instances/components. The following command starts the porta904 instance. Notice that we use the fully qualified instance name.$ dcmctl start -i porta904.appsvr.localdomain.com Current State for Instance:porta904.appsvr.localdomain.com Component Type 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 stop the instance, you have two options, the stop command or the shutdown command. The shutdown command is used to stop 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 state of the instance/component. $ dcmctl stop -co OC4J_Testing Current State for Instance:porta904.appsvr.localdomain.com Component Type Up Status In Sync Status ======================================================================= 1 OC4J_Testing OC4J Down True Here, we stop the OC4J_Testing container using dcmctl. One dcmctl command has already been introduced a number of times in previous chapters and at the beginning 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 series page.About the authors
A senior Oracle trainer with Burleson Consulting, John Garmany is also 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 also serves as a writer for DBAZine, "Oracle Internals" and has authored several popular 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 large online databases and he has worked with some of the world's most powerful and complex systems. Don's professional Web sites include www.dba-oracle.com and www.remote-dba.net.
On April 17, Oracle released the quarterly Critical Patch Update (CPU) advisory. Among the 254 new security fixes, the CPU also contained a fix for the critical 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 name 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:
In order to apply Oracle's CPU, WebLogic customers must download the corresponding PSU updates from Oracle's support site and install the patch using Smart Update or OPatch. The following PSUs correspond to Oracle's April 2018 CPU:
For more information please consult Doc ID 1470197.1 from the Oracle support site.
This is not the first time that WebLogic was found 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 have 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 found ways around this patch. The protection bypass was inevitable because Oracle patched WebLogic by implementing a blacklist.
Using a blacklist approach has certain benefits such as easy configuration and is less likely to cause 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 effective at scale.Technical Analysis
Let's see 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:
Initially, as a protection to CVE-2015-4852, only the following classes were blacklisted:
In subsequent releases, this blacklist was extended to disallow these classes as well:
Note that these are the packages and classes that are blacklisted by default. WebLogic administrators have 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 have in their arsenal is the use 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 use of exploits (gadget chains) that use dynamic proxies that implement the Registry interface in place of a legitimate InboundMsgAbbrev instance.
The use of the dynamic proxy can be seen in the following stack trace that shows the RCE attack in action:
The above stack trace was captured in a POC attack 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 possible Java deserialization attacks if similar exceptions are seen in their WebLogic logs:
The problem with blacklisting the java.rmi.registry.Registry interface from the deserialization of the InboundMsgAbbrev instance is that attackers can simply replace the blacklisted interface with another interface. Deserialization gadget chains are like 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 have 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 claim to have bypassed Oracle's April CPU fix for CVE-2018-2628, users should by no means be discouraged from installing the April CPU.
One way to harden the system against gadget chains is to use 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 part 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 reason to upgrade the latest JDK is that it will allow you to use the JEP-290 Serialization Filtering mechanism. Using the process-wide global filter administrators can define their own whitelists for deserialization. WebLogic also 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 use of a Web Application Firewall could also be helpful but beware of the false positives since most of these solutions use pattern and signature matching. These heuristic approaches are never fully accurate and, in effect, they simply offer another way of performing filtering (blacklisting and/or whitelisting). This type of filtering is even less accurate compared to the JEP-290 Serialization Filtering mechanism of the JRE.
security ,cybersecurity ,web application security ,java security
Enterprise SoftwareExtends Top-Down Application Management Capabilities to Oracle WebLogic Server, Oracle Enterprise Service Bus, Oracle Coherence and Oracle Beehive
REDWOOD SHORES, Calif., March 3 / / - News Facts
- Further enhancing its top-down approach to application management, Oracle today announced new and enhanced management packs for Oracle® Fusion Middleware through the release of Oracle Enterprise Manager 10g Release 5 (10gR5).
- With this release, Oracle Enterprise Manager deepens its comprehensive top-down application management capabilities for Oracle WebLogic Server and other key components of Oracle Fusion Middleware, enabling customers to reduce the complexity and cost of managing enterprise applications while increasing service quality.
- Oracle WebLogic Server customers can now benefit from a unified application management solution, eliminating the need for multiple tools. Oracle Application Server customers looking to implement this industry leading application server can now use the same familiar toolset in Oracle Enterprise Manager to accelerate adoption of Oracle WebLogic Server.
- Oracle Enterprise Manager 10gR5 also adds model-based application performance management through its Composite Application Monitor and Modeler for SOA and new management capabilities for Oracle Enterprise Service Bus, Oracle Coherence, Oracle Beehive and enhancements for Oracle BPEL Process Manager.
Expanded Diagnostics and Configuration Management
o Featuring tighter integration with Oracle WebLogic Server, OracleEnterprise Manager 10gR5 delivers the most complete management solution for Oracle WebLogic Server. Highlights include:
- Application Performance Management Optimized for Production - provides low-overhead monitoring and diagnostic capabilities for applications and Web services running on Oracle WebLogic Server; extensive historical and real-time visibility into application performance running on virtually any JVM including Oracle JRockit;tracing of in-flight transactions and cross-tier performance diagnostics with the Oracle Database - enabling superior proactive analysis of performance and availability for Oracle WebLogic Server and significantly reduced costs associated with administration and application downtime.
- Extensive Configuration Management - delivers auto-discovery andconfiguration tracking for Oracle WebLogic Server and its underlying hardware and operating system; and provides change detection, analysis and reporting including compliance dashboards -simplifying IT compliance and aiding in problem avoidance and diagnosis of hard to locate issues resulting from configuration changes.
Enhanced SOA Management
- Adding to its extensive SOA management capabilities, Oracle EnterpriseManager 10gR5 extends its management of Oracle BPEL Process Manager with the ability to manage Oracle Enterprise Service Bus. Enhancements include:
- Service Bus management - provides the ability to monitor, manage, and deploy Oracle Enterprise Service Bus and automate deployment of Oracle Enterprise Service Bus projects and resources;
- Enhanced BPEL management - reports on BPEL instance and activity performance to enable faster and more accurate problem resolution.
- Configuration management - adds configuration collection, recording and analysis of Oracle Service Bus. Administrators can now use an integrated solution for managing Oracle Enterprise Service Bus, Oracle BPEL Process Manager and Oracle WebLogicServer, enabling administrators to quickly resolve configuration related issues across the entire SOA environment.
- Composite application management - addresses the increasingly complex task of managing composite applications built on SOA platforms through a Composite Application Monitor and Modeler, providing visibility of business services across all relatedapplication components.
New Capabilities for Oracle Coherence and Oracle Beehive
- Oracle Enterprise Manager 10gR5 also includes integrated management of Oracle Coherence clusters with the new Management Pack for Oracle Coherence, helping administrators deploy and manage large Oracle Coherence clusters, including key aspects such as discovery, monitoring, reporting, events management, configuration management, lifecycle management and deployment automation.
- In this release, Oracle Enterprise Manager enables administrators to manage Oracle Beehive services collectively and at the individual component level. Key highlights include automatic discovery of Oracle Beehive components; service monitoring from both component and end-user perspectives; and integrated root-cause analysis and problem remediation. These capabilities enable the best performance andavailability for Oracle Beehive while reducing the cost and complexity of administration.
- "With Oracle Enterprise Manager customers gain a complete and uninterrupted view of their SOA environments. This provides the ability to efficiently diagnose and remedy complex application performance issues, saving time and resources. With the new management capabilities for Oracle WebLogic Server, and other key components ofOracle Fusion Middleware, customers can effectively eliminate the IT visibility gap," said Richard Sarwal, Oracle senior vice president Product Development.
- Join Richard Sarwal, Oracle senior vice president, for a Webcast - Tuesday, March 3rd, 9am Pacific
- Oracle Enterprise Manager
- Management Pack Plus for SOA;
- Diagnostics Pack For Oracle Middleware
- Configuration Management Pack for Oracle Middleware
- Management Pack for Oracle Coherence
Oracle (NASDAQ:ORCL) is the world's largest business software company. For more information about Oracle, please visit our Web site at http://www.oracle.com/.
Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners.
CONTACT: Teri Whitaker, +1-650-506-9914, firstname.lastname@example.org, or Jim Rivas, +1-650-506-8879, email@example.com, both of Oracle
Web Site: http://www.oracle.com/Related Thomas Industry Update
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