Library of expert validated exploits for safe and effective pen tests
Exploit development can be an advanced penetration testing skill that takes time to master. Additionally, when on a job, pen testers often don’t have the resources to create a new exploit. Many resort to searching for and using pre-written exploits that have not been tested and must go through the timely effort of quality assurance testing in order to ensure they are secure and effective.
Core Impact users can save time by finding all the up-to-date exploits they need in one place. We provide a robust library of exploits designed to enable pen testers to safely and efficiently conduct successful penetration tests. Whether written by our own internal team or by a third party like ExCraft, you can trust they have been thoroughly tested and validated by our experts.
The universe of vulnerabilities is huge and not all of them represent the same risk for the customers. Vulnerabilities do not all have the same level of criticality. Some may be easily exploitable by a low-level user, while others may not be exploitable at all. To increase the efficiency of the attacks and the quality of the exploits provided, the Core Impact team has developed selection criteria to prioritize its analysis and implementation. We determine which exploits warrant creation based on the following questions:
What are the most critical attacks from the attacker’s perspective?
What new vulnerabilities are more likely to be exploited in real attacks?
What exploits are the most valuable for Core Impact?
Once an exploit is approved, its priority order considers the following variables:
Vulnerability Properties: CVE, disclosure date, access mechanism and privileges needed.
Target Environment Setup: OS, application prevalence, version and special configurations needed.
Value Provided to Core Impact: Customer request, usage in multiple attacks, allows the installation of an agent, etc.
Technical Cost vs. Benefit: An analysis weighing the resources needed to build an exploit with the internal and external knowledge gained in its creation.
Each one of these variables has a different weight and provides a ranking of the potential exploits to be developed. Following those criteria, the top of the list would contain, for example, a vulnerability on Windows (most popular OS) that can be exploited remotely, without authentication and that provides super user privileges.
Correspondingly, a vulnerability on an application that is rarely installed, needs special configurations, and requires User Interaction, would be at the bottom.
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This module exploits a vulnerability in Apache Struts 2. The specific vulnerability relies on the Struts 1 plugin which might allow remote attackers to execute arbitrary code via a malicious field value passed in a raw message to the ActionMessage.
The DefaultActionMapper class in Apache Struts 2 supports a Dynamic Method Invocation feature via the "method:" prefix. The information contained in this prefix is not properly sanitized before being evaluated as OGNL expressions on the server side, which allows remote attackers to execute arbitrary Java code on the server.
This module exploits the vulnerability in any web application built on top of vulnerable versions of the Apache Struts 2 framework with the "struts.enable.DynamicMethodInvocation" configuration parameter in struts.xml set to True.
The DefaultActionMapper class in Apache Struts2 supports a method for short-circuit navigation state changes by prefixing parameters with "action:" or "redirect:". The information contained in these prefixes is not properly sanitized before being evaluated as OGNL expressions on the server side, which allows remote attackers to execute arbitrary Java code on the server. This module exploits the vulnerability in any web application built on top of vulnerable versions of the Apache Struts 2 framework.
The DefaultActionMapper class in Apache Struts2 supports a method for short-circuit navigation state changes by prefixing parameters with "action:" or "redirect:". The information contained in these prefixes is not properly sanitized before being evaluated as OGNL expressions on the server side, which allows remote attackers to execute arbitrary Java code on the server. This module exploits the vulnerability in any web application built on top of vulnerable versions of the Apache Struts 2 framework.
The best practice for web applications built on top of the Apache Struts 2 framework is to switch off Developer Mode (struts.devMode parameter in the struts.xml configuration file) before going into production. When devMode is left enabled, attackers can gain remote code execution by setting the 'debug=command' URL parameter and sending OGNL expressions through the 'expression' URL parameter. This module takes advantage of this misconfiguration scenario in order to deploy an agent in the target system.
The best practice for web applications built on top of the Apache Struts 2 framework is to switch off Developer Mode (struts.devMode parameter in the struts.xml configuration file) before going into production. When devMode is left enabled, attackers can gain remote code execution by setting the 'debug=command' URL parameter and sending OGNL expressions through the 'expression' URL parameter. This module takes advantage of this misconfiguration scenario in order to deploy an agent in the target system.
An attacker can manipulate file upload params to enable paths traversal and under some circumstances this can lead to uploading a malicious file which can be used to perform Remote Code Execution. Users are recommended to upgrade to versions Struts 2.5.33 or Struts 6.3.0.2 or greater to fix this issue.
The REST plugin in the Apache Struts 2 framework is prone to a remote code execution vulnerability when evaluating OGNL expressions when Dynamic Method Invocation is enabled.
This vulnerability allows remote attackers to execute arbitrary Java code on the affected server.
This module exploits the vulnerability in any web application built on top of vulnerable versions of Apache Struts 2 making use of the REST plugin with the Dynamic Method Invocation feature enabled.
This module exploits a vulnerability in Apache Struts. The specific vulnerability is in the ParametersInterceptor, which allows a direct manipulation of the ClassLoader and as a result an attacker can execute arbitrary Java code in the target machine. WARNING: This is an early release module. This is not the final version of this module. It is a pre-released version in order to deliver a module as quickly as possible to our customers that may be useful in some situations.
This module exploits a vulnerability in Apache Struts. The specific vulnerability is in the ParametersInterceptor, which allows a direct manipulation of the ClassLoader and as a result an attacker can execute arbitrary Java code in the target machine. This update adds support for Apache Struts 2.3.16, Windows (x86 and x64) and Linux (x64) platforms.
This module exploits a buffer overflow vulnerability in the Apache Tomcat JK Web Server Connector and installs an agent. An attacker can use an overly long URL to trigger a buffer overflow in the URL work map routine (map_uri_to_worker()) in the mod_jk.so library, resulting in the compromise of the target system.
This module exploits a buffer overflow vulnerability in the Apache Tomcat JK Web Server Connector and installs an agent. An attacker can use an overly long URL to trigger a buffer overflow in the URL work map routine (map_uri_to_worker()) in the mod_jk.so library, resulting in the compromise of the target system. This package improves the reliability of the exploit.
Apache Tomcat allows the upload of JSP files to unauthenticated users via a specially crafted request when the readonly initialization parameter of the Default servlet is set to false.
Apache Unomi allows conditions to use OGNL and MVEL scripting which offers the possibility to call static Java classes from the JDK that could execute code with the permission level of the running Java process.
Apple CUPS HP-GL2 filter Remote Code Execution Exploit
This module exploits a specific flaw in the Hewlett-Packard Graphics Language filter. Inadequate bounds checking on the pen width and pen color opcodes result in an arbitrary memory overwrite allowing for the execution of arbitrary code as the "hgltops" process uid.
Apple CUPS HP-GL2 filter Remote Code Execution Exploit Update
This module exploits a specific flaw in the Hewlett-Packard Graphics Language filter. Inadequate bounds checking on the pen width and pen color opcodes result in an arbitrary memory overwrite allowing for the execution of arbitrary code as the "hgltops" process uid. -Linux Support added
Apple CUPS IPP_TAG_UNSUPPORTED Handling null pointer DoS
This module exploits a vulnerability in Apple CUPS, when handling the IPP_TAG_UNSUPPORTED which could be exploited by attackers to cause a remote pre-authentication denial of service.
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple iTunes. The specific flaw exists in the URL handlers associated with iTunes. When processing URLs via the protocol handlers ITMS, ITMSS, DAAP, PCAST, and ITPC an exploitable stack overflow occurs.
Apple iTunes is prone to a buffer-overflow vulnerability because the software fails to bounds-check user-supplied data before copying it into an insufficiently sized buffer. An attacker can exploit this issue to execute arbitrary code within the context of the affected application. Failed exploit attempts will result in a denial-of-service condition.