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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We provide pen testers with real-time updates for a wide range of exploits for different platforms, operating systems, and applications.
Search our continuously growing library to discover an exploit that will allow you to gain and retain access on the target host or application.
freeSSHd SSH Server Authentication Bypass Remote Code Execution Exploit
A vulnerability in the freeSSHd SSH Server allows remote attackers to bypass authentication via a crafted session. This module exploits the vulnerability and installs an agent into the target host.
Denial of service vulnerability present in the web server. Vulnerability is very simple to trigger by sending special crafted GET request
Windows
Denial of Service / Remote
IOT
FreeFTPD User Command Buffer Overflow Exploit
An internal memory buffer may be overrun while handling long "USER" command. This condition may be exploited by attackers to ultimately execute instructions with the privileges of the FreeFTPdService.exe process.
The bdfReadCharacters() function in the libXfont component of X.Org is prone to a stack-based buffer overflow vulnerability when parsing a specially crafted BDF font file. This vulnerability can be exploited by a local unprivileged attacker to gain root privileges.
Local attackers can exploit this issue to execute arbitrary code with superuser privileges. Successfully exploiting this issue will facilitate in the complete compromise of affected computers.
On Intel CPUs, sysret to non-canonical addresses causes a fault on the sysret instruction itself after the stack pointer is set to guest value but before the current privilege level (CPL) is changed. FreeBSD is vulnerable to this issue due to insufficient sanity checks when returning from a system call. This module exploits the vulnerability and installs an agent with root privileges.
FreeBSD Sendmsg Compat32 Local Privilege Escalation Exploit
In FreeBSD 12.1-STABLE before r363918, 12.1-RELEASE before p8, 11.4-STABLE before r363919, 11.4-RELEASE before p2, and 11.3-RELEASE before p12, 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.
Due to failure to handle exceptional conditions, a NULL pointer is dereferenced by the FreeBSD kernel allowing to overwrite arbitrary kernel memory. This module exploits the vulnerability to install an agent with root privileges.
The NFS client subsystem in FreeBSD fails to correctly validate the length of a parameter provided by the user when a filesystem is mounted. This may cause a kernel stack overflow that can be exploited by local users to gain root privileges.
FreeBSD mount Local Privilege Escalation Exploit Update
FreeBSD is prone to multiple stack-based buffer-overflow vulnerabilities because the kernel fails to perform adequate boundary checks on user-supplied data. If the system is configured to allow unprivileged users to mount file systems, it is possible for a local adversary to exploit this vulnerability and execute code in the context of the kernel. This update fixs some issues and adds validations pre-explotation.
FreeBSD is prone to multiple stack-based buffer-overflow vulnerabilities because the kernel fails to perform adequate boundary checks on user-supplied data. If the system is configured to allow unprivileged users to mount file systems, it is possible for a local adversary to exploit this vulnerability and execute code in the context of the kernel.
This module exploits a vulnerability in FreeBSD. The FreeBSD virtual memory system allows files to be memory-mapped. All or parts of a file can be made available to a process via its address space. The process can then access the file using memory operations rather than filesystem I/O calls. Due to insufficient permission checks in the virtual memory system, a tracing process (such as a debugger) may be able to modify portions of the traced process's address space to which the traced process itself does not have write access.
The read-only flag is not correctly copied when a mbuf buffer reference is duplicated. When the sendfile system call is used to transmit data over the loopback interface, this can result in the backing pages for the transmitted file being modified, causing data corruption. This data corruption can be exploited by an local attacker to escalate their privilege by carefully controlling the corruption of system files. It should be noted that the attacker can corrupt any file they have read access to.
FreeBSD is prone to a local privilege-escalation vulnerability because it fails to adequately bounds-check user-supplied data. An attacker can exploit this vulnerability to run arbitrary code with elevated privileges.
The FreeBSD kernel provides support for a variety of different types of communications sockets, including IPv4, IPv6, ISDN, ATM, routing protocol, link-layer, netgraph(4), and bluetooth sockets. Some function pointers for netgraph and bluetooth sockets are not properly initialized. This can be exploited to e.g. read or write to arbitrary kernel memory via a specially crafted "socket()" system call, and allows an unprivileged process to elevate privileges to root or escape a FreeBSD jail.
The amd64_set_ldt() function in sys/amd64/amd64/sys_machdep.c in the FreeBSD kernel code is prone to an integer signedness error when processing a system call with specially crafted parameters originated from user space. This issue ultimately leads to a kernel heap overflow, which can be used by unprivileged local attackers to cause a kernel panic and crash the machine.
FreeBSD IOCTL CDIOCREADSUBCHANNELSYSSPACE Local Privilege Escalation Exploit
A bug in the cdrom driver allows users with read access to the cdrom device to arbitrarily overwrite kernel memory when media is present thereby allowing a malicious user in the operator group to gain root privileges.
Incorrect signedness comparison in the ioctl handler of the atkbd keyboard driver in the FreeBSD kernel can be leveraged by a local unprivileged user to overwrite a portion of the kernel memory, thus allowing the attacker to gain root privileges on the affected system.
This update improves the checking of preconditions before launching the attack.
Incorrect signedness comparison in the ioctl handler of the atkbd keyboard driver in the FreeBSD kernel can be leveraged by a local unprivileged user to overwrite a portion of the kernel memory, thus allowing the attacker to gain root privileges on the affected system.