ID CVE-2015-4852
Summary The WLS Security component in Oracle WebLogic Server,,, and allows remote attackers to execute arbitrary commands via a crafted serialized Java object in T3 protocol traffic to TCP port 7001, related to oracle_common/modules/com.bea.core.apache.commons.collections.jar. NOTE: the scope of this CVE is limited to the WebLogic Server product.
Vulnerable Configurations
  • cpe:2.3:a:oracle:virtual_desktop_infrastructure:3.5.2
  • Oracle Weblogic Server
  • Oracle Weblogic Server
  • Oracle Weblogic Server
  • Oracle Weblogic Server
Base: 7.5 (as of 01-11-2016 - 14:09)
  • Cause Web Server Misclassification
    An attack of this type exploits a Web server's decision to take action based on filename or file extension. Because different file types are handled by different server processes, misclassification may force the Web server to take unexpected action, or expected actions in an unexpected sequence. This may cause the server to exhaust resources, supply debug or system data to the attacker, or bind an attacker to a remote process. This type of vulnerability has been found in many widely used servers including IIS, Lotus Domino, and Orion. The attacker's job in this case is straightforward, standard communication protocols and methods are used and are generally appended with malicious information at the tail end of an otherwise legitimate request. The attack payload varies, but it could be special characters like a period or simply appending a tag that has a special meaning for operations on the server side like .jsp for a java application server. The essence of this attack is that the attacker deceives the server into executing functionality based on the name of the request, i.e. login.jsp, not the contents.
  • LDAP Injection
    An attacker manipulates or crafts an LDAP query for the purpose of undermining the security of the target. Some applications use user input to create LDAP queries that are processed by an LDAP server. For example, a user might provide their username during authentication and the username might be inserted in an LDAP query during the authentication process. An attacker could use this input to inject additional commands into an LDAP query that could disclose sensitive information. For example, entering a * in the aforementioned query might return information about all users on the system. This attack is very similar to an SQL injection attack in that it manipulates a query to gather additional information or coerce a particular return value.
  • Command Delimiters
    An attack of this type exploits a programs' vulnerabilities that allows an attacker's commands to be concatenated onto a legitimate command with the intent of targeting other resources such as the file system or database. The system that uses a filter or a blacklist input validation, as opposed to whitelist validation is vulnerable to an attacker who predicts delimiters (or combinations of delimiters) not present in the filter or blacklist. As with other injection attacks, the attacker uses the command delimiter payload as an entry point to tunnel through the application and activate additional attacks through SQL queries, shell commands, network scanning, and so on.
  • File System Function Injection, Content Based
    An attack of this type exploits the host's trust in executing remote content including binary files. The files are poisoned with a malicious payload (targeting the file systems accessible by the target software) by the attacker and may be passed through standard channels such as via email, and standard web content like PDF and multimedia files. The attacker exploits known vulnerabilities or handling routines in the target processes. Vulnerabilities of this type have been found in a wide variety of commercial applications from Microsoft Office to Adobe Acrobat and Apple Safari web browser. When the attacker knows the standard handling routines and can identify vulnerabilities and entry points they can be exploited by otherwise seemingly normal content. Once the attack is executed, the attackers' program can access relative directories such as C:\Program Files or other standard system directories to launch further attacks. In a worst case scenario, these programs are combined with other propagation logic and work as a virus.
  • Exploiting Multiple Input Interpretation Layers
    An attacker supplies the target software with input data that contains sequences of special characters designed to bypass input validation logic. This exploit relies on the target making multiples passes over the input data and processing a "layer" of special characters with each pass. In this manner, the attacker can disguise input that would otherwise be rejected as invalid by concealing it with layers of special/escape characters that are stripped off by subsequent processing steps. The goal is to first discover cases where the input validation layer executes before one or more parsing layers. That is, user input may go through the following logic in an application: In such cases, the attacker will need to provide input that will pass through the input validator, but after passing through parser2, will be converted into something that the input validator was supposed to stop.
  • Argument Injection
    An attacker changes the behavior or state of a targeted application through injecting data or command syntax through the targets use of non-validated and non-filtered arguments of exposed services or methods.
  • Manipulating Writeable Configuration Files
    Generally these are manually edited files that are not in the preview of the system administrators, any ability on the attackers' behalf to modify these files, for example in a CVS repository, gives unauthorized access directly to the application, the same as authorized users.
  • Manipulating Input to File System Calls
    An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.
exploit-db via4
  • file exploits/multiple/remote/46628.rb
    id EDB-ID:46628
    last seen 2019-03-28
    modified 2019-03-28
    platform multiple
    published 2019-03-28
    reporter Exploit-DB
    title Oracle Weblogic Server Deserialization RCE - Raw Object (Metasploit)
    type remote
  • description Oracle WebLogic Server - Java Deserialization. CVE-2015-4852. Remote exploit for Java platform
    file exploits/java/remote/
    id EDB-ID:42806
    last seen 2017-09-29
    modified 2017-09-27
    platform java
    published 2017-09-27
    reporter Exploit-DB
    title Oracle WebLogic Server - Java Deserialization
    type remote
  • description Websphere/JBoss/OpenNMS/Symantec Endpoint Protection Manager - Java Deserialization Remote Code Execution. CVE-2015-4852. Remote exploit for Multiple platform
    id EDB-ID:44552
    last seen 2018-05-24
    modified 2016-07-20
    published 2016-07-20
    reporter Exploit-DB
    title Websphere/JBoss/OpenNMS/Symantec Endpoint Protection Manager - Java Deserialization Remote Code Execution
metasploit via4
description An unauthenticated attacker with network access to the Oracle Weblogic Server T3 interface can send a serialized object (weblogic.jms.common.StreamMessageImpl) to the interface to execute code on vulnerable hosts.
last seen 2019-03-27
modified 2019-03-26
published 2018-12-16
reliability Excellent
reporter Rapid7
title Oracle Weblogic Server Deserialization RCE - Raw Object
nessus via4
  • NASL family F5 Networks Local Security Checks
    NASL id F5_BIGIP_SOL30518307.NASL
    description CVE-2015-4852 Java applications that have an endpoint that accepts serialized Java objects, an attacker can combine serializable collections to create arbitrary remote code execution. Based on the FoxGlove, an attack can be done via RMI or HTTP. The vulnerability is actually in InvokerTransformer class. If class path exists for commons-collections or commons-collections4, the vulnerability exits in the application. Apache Collections-580 - Arbitrary remote code execution with InvokerTransformer With InvokerTransformer, serializable collections can be build that execute arbitrary Java code. sun.reflect.annotation.AnnotationInvocationHandler#readObject invokes #entrySet and #get on a deserialized collection. If you have an endpoint that accepts serialized Java objects (JMX, RMI, remote EJB, ...) you can combine the two to create arbitrary remote code execution vulnerability.
    last seen 2019-02-21
    modified 2019-01-04
    plugin id 87432
    published 2015-12-17
    reporter Tenable
    title F5 Networks BIG-IP : Java commons-collections library vulnerability (K30518307)
  • NASL family Web Servers
    NASL id WEBLOGIC_2015_4852.NASL
    description The remote Oracle WebLogic server is affected by a remote code execution vulnerability in the WLS Security component due to unsafe deserialize calls of unauthenticated Java objects to the Apache Commons Collections (ACC) library. An unauthenticated, remote attacker can exploit this to execute arbitrary Java code in the context of the WebLogic server.
    last seen 2019-02-21
    modified 2018-11-15
    plugin id 87011
    published 2015-11-23
    reporter Tenable
    title Oracle WebLogic Java Object Deserialization RCE
packetstorm via4
refmap via4
bid 77539
  • 42806
  • 46628
mlist [oss-security] 20151117 Re: Assign CVE for common-collections remote code execution on deserialisation flaw
sectrack 1038292
saint via4
bid 77539
description Oracle WebLogic Apache Commons library deserialization vulnerability
id web_dev_weblogic
title weblogic_apache_commons_deserialization
type remote
Last major update 24-04-2017 - 21:59
Published 18-11-2015 - 10:59
Last modified 28-03-2019 - 15:29
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