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. Witten by our own internal team, 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 first uses hard-coded credentials for the diagnostics user to authenticate in the UCMDB component. Then a java deserialization vulnerability present in several endpoints of the UCMDB service is used to execute commands. The deployed agent will run with the SYSTEM privileges on Windows and root on Linux.
A vulnerability in the admin web interface could allow an authenticated attacker to upload a custom template to perform an arbitrary code execution. These templates can be used to display customised login and meeting pages and are rendered using the Perl Template Toolkit engine. This engine can be coerced into executing code by creating a new "BLOCK" by abusing the "template" global object to create a new block to be evaluated. The deployed agent will run with ROOT privileges.
Cisco AnyConnect Posture Security Service Local Privilege Escalation Exploit
Multiple vulnerabilities in Cisco AnyConnect Posture for Windows could allow an authenticated local attacker, to execute arbitrary commands with SYSTEM user privileges.
FreeBSD Sendmsg Compat32 Local Privilege Escalation Exploit
This module exploits a vulnerability in FreeBSD. The sendmsg system call in the compat32 subsystem on 64-bit platforms has a time-of-check to time-of-use vulnerability allowing a mailcious userspace program to modify control message headers after they were validation.
Microsoft Windows Print Spooler Service Arbitrary File Write Elevation of Privilege Vulnerability Exploit (CVE-2020-1337)
An elevation of privilege vulnerability exists when the Windows Print Spooler service improperly allows arbitrary writing to the file system bypassing CVE-2020-1048.
Sudo Setcmnd Heap Buffer Overflow Local Privilege Escalation Exploit
Sudo before 1.9.5p2 has a Heap-based Buffer Overflow, allowing privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.
This module exploits a path traversal vulnerability in the FortiOS SSL VPN web portal which allows an unauthenticated attacker to download FortiOS system files through specially crafted HTTP resource requests.
Microsoft Exchange Proxylogon Remote Code Execution Vulnerability Exploit
This module first exploits a server side request forgery vulnerability present in Microsoft.Exchange.HttpProxy of Microsoft Exchange Server to bypass authentication. Then an arbitrary file write vulnerability present in WriteFileActivity of Microsoft.Exchange.Management.ControlPanel.DIService is used to deploy a .aspx file and execute commands. The deployed agent will run with the SYSTEM privileges.
F5 BIG-IP iControl REST API Remote Code Execution Exploit
This vulnerability allows for unauthenticated attackers with network access to the iControl REST interface, through the BIG-IP management interface and self IP addresses, to execute arbitrary system commands, create or delete files, and disable services. This vulnerability can only be exploited through the control plane and cannot be exploited through the data plane. Exploitation can lead to complete system compromise. The BIG-IP system in Appliance mode is also vulnerable.
Exploits / OS Command Injection / Known Vulnerabilities
Impact
SolarWinds Orion Collector Service MSMQ Deserialization Remote Code Execution Exploit
SolarWinds Orion is prone to a remote vulnerability that allows unauthenticated attackers to execute system commands. Using the lack of permissions that the Collector Service set on its private queues, it is possible to remotely send messages that will be deserialized allowing to execute commands as SYSTEM.
VMware vCenter Server uploadova TAR Directory Traversal Remote Code Execution Exploit
This module uses an unauthenticated file upload vulnerability via uploadova plugin in VMware vCenter Server to upload and extract a TAR file. This TAR file contains a path traversal that allows writing files at arbitraries locations. In the vulnerable 6.5.X and 6.7.X (build 13010631 and lower) versions of VMware vCenter Server, a JSP file is deployed to gain arbitrary code execution. In the vulnerable 6.7.X (build 13643870 and greater) and 7.X versions, a file with public keys are uploaded to the vsphere-ui user home directory and then used to deploy an agent via SSH.
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.
Exploits / OS Command Injection / Known Vulnerabilities
Impact
Pulse Secure Arbitrary File Disclosure Exploit
This module exploits a file disclosure vulnerability in Pulse Connect Secure SSL VPN which allows an unauthenticated attacker to download system files through specially crafted HTTP resource requests.
This module uses an authenticated JNDI injection vulnerability via JndiBindingHandle class in Oracle Weblogic Server to upload and execute a java class file to gain arbitrary code execution on the affected system.
This module uses an unauthenticated remote PHP file upload vulnerability via File Manager (wp-file-manager) plugin in WordPress to upload and execute a PHP agent file to gain arbitrary code execution on the affected system.
Exploits / Remote File Inclusion / Known Vulnerabilities
Impact
Ghostcat Local File Inclusion Exploit
In Apache Tomcat 9.0.0.M1 to 9.0.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99, Tomcat shipped with an AJP Connector enabled by default that listened on all configured IP addresses. It was expected (and recommended in the security guide) that this Connector would be disabled if not required.