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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Title
Description
Date Added
CVE Link
Exploit Platform
Exploit Type
Product Name
Linux Kernel RDS Protocol Privilege Escalation Exploit
The Linux kernel is prone to a privilege escalation vulnerability that can be exploited by local unprivileged users to gain root access, because
the RDS protocol does not properly check that the base address of a user-provided iovec struct points to a valid userspace address before using the __copy_to_user_inatomic() function to copy the data. By providing a kernel address as an iovec base and issuing a recvmsg() style socket call, a local user could write arbitrary data into kernel memory, thus escalating privileges to root.
Linux Kernel Route4 Change UAF Local Privilege Escalation Exploit
A use-after-free flaw was found in route4_change in the net/sched/cls_route.c filter implementation in the Linux kernel. This module allows to create a user with root privileges.
Linux Kernel Sock_Sendpage Local Privilege Escalation Exploit
The Linux kernel 2.6.0 through 2.6.30.4, and 2.4.4 through 2.4.37.4, does not initialize all function pointers for socket operations in proto_ops structures, which allows local users to trigger a NULL pointer dereference and gain privileges by using mmap to map page zero, placing arbitrary code on this page, and then invoking an unavailable operation, as demonstrated by the sendpage operation (sock_sendpage function) on a PF_PPPOX socket
Linux Kernel Sock_Sendpage Local Privilege Escalation Exploit Update
The Linux kernel 2.6.0 through 2.6.30.4, and 2.4.4 through 2.4.37.4, does not initialize all function pointers for socket operations in proto_ops structures, which allows local users to trigger a NULL pointer dereference and gain privileges by using mmap to map page zero, placing arbitrary code on this page, and then invoking an unavailable operation, as demonstrated by the sendpage operation (sock_sendpage function) on a PF_PPPOX socket.
This update adds the 'one-shot' tag to the XML of the module.
Linux Kernel SO_SNDBUFFORCE Privilege Escalation Exploit
This module exploits a signedness issue in the Linux Kernel. The sock_setsockopt function in net/core/sock.c in the Linux kernel before 4.8.14 mishandles negative values of sk_sndbuf and sk_rcvbuf, which allows local users to escalate privileges.
Linux Kernel udp_sendmsg Privilege Escalation Exploit
This module exploits a vulnerability in the udp_sendmsg function in the UDP implementation in net/ipv4/udp.c and net/ipv6/udp.c in the Linux kernel before 2.6.19 allowing local users to gain privileges via vectors involving the MSG_MORE flag and a UDP socket.
Linux Kernel UFO Memory Corruption Privilege Escalation Exploit
This module exploits a memory corruption vulnerability in the Linux kernel. When building a UFO packet with MSG_MORE __ip_append_data() calls ip_ufo_append_data() to append. However in between two send() calls, the append path can be switched from UFO to non-UFO one, which leads to a memory corruption that can be used by an attacker to escalate privileges.
Linux Kernel Vmsplice() Privilege Escalation Exploit
Exploits a missing verification of parameters within the vmsplice_to_user(), copy_from_user_mmap_sem(), and get_iovec_page_array() functions in fs/splice.c before using them to perform certain memory operations. This can be exploited to e.g. read or write to arbitrary kernel memory via a specially crafted vmsplice() system call, and allows an unprivileged process to elevate privileges to root.
Linux Kernel watch_queue Local Privilege Escalation Exploit
An out-of-bounds (OOB) memory write flaw was found in the Linux kernel's watch_queue event notification subsystem. This flaw can overwrite parts of the kernel state, potentially allowing a local user to gain privileged access or cause a denial of service on the system.
Linux Kernel x86_64 Ptrace Sysret Privilege Escalation Exploit
On x86_64 Intel CPUs, sysret to a non-canonical address causes a fault on the sysret instruction itself after the stack pointer has been set to a usermode-controlled value, but before the current privilege level (CPL) is changed.
A flaw in the ptrace subsystem of the Linux kernel allows a tracer process to set the RIP register of the tracee to a non-canonical address, which is later used when returning to user space with a sysret instruction instead of iret after a system call, thus bypassing sanity checks that were previously introduced to fix related vulnerabilities.
Linux Looney Tunables GLIBC Local Privilege Escalation Exploit
A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges.
Linux Looney Tunables GLIBC Local Privilege Escalation Exploit Update
A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID permission to execute code with elevated privileges.
This update contains a minor fix in the exploit time out.
Linux OverlayFS Attr Local Privilege Escalation Exploit
The overlayfs implementation in the linux kernel did not properly validate with respect to user namespaces the setting of file capabilities on files in an underlying file system. Due to the combination of unprivileged user namespaces along with a patch carried in the Ubuntu kernel to allow unprivileged overlay mounts, an attacker could use this to gain elevated privileges.
Linux Overlayfs Local Privilege Escalation Exploit
This module exploits a vulnerability in Linux. The overlayfs filesystem does not correctly check file permissions when creating new files in the upper filesystem directory. This can be exploited by an unprivileged process in kernels with CONFIG_USER_NS=y and where overlayfs has the FS_USERNS_MOUNT flag, which allows the mounting of overlayfs inside unprivileged mount namespaces.
Linux Overlayfs ovl_setattr Local Privilege Escalation Exploit
This module exploits a vulnerability in Linux. The ovl_setattr function in fs/overlayfs/inode.c in the Linux kernel through 4.3.3 attempts to merge distinct setattr operations, which allows local users to bypass intended access restrictions and modify the attributes of arbitrary overlay files via a crafted application.
This module exploits a vulnerability in Linux for x86_64. The IA32 system call emulation functionality does not zero extend the eax register after the 32bit entry path to ptrace is used, which might allow local users to trigger an out-of-bounds access to the system call table using the %RAX register and escalate privileges.
Linux PTRACE_TRACEME Local Privilege Escalation Exploit
In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to create a ptrace relationship, which allows local users to obtain root access by leveraging certain scenarios with a parent-child process relationship, where a parent drops privileges and calls execve (potentially allowing control by an attacker).
Linux snapd dirty_sock Local Privilege Escalation Exploit
This module exploits a vulnerability in snapd which incorrectly validates and parses the remote socket address when performing access controls on its UNIX socket.
A local attacker could use this to access privileged socket APIs and obtain administrator privileges.