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A vulnerability exists in the Core subcomponent of Oracle VM VirtualBox prior to version 5.1.24. A high-privileged attacker with local access to the infrastructure running VirtualBox can exploit this flaw to cause a denial of service (hang or crash) or to perform unauthorized update, insert, or delete operations on data accessible to VirtualBox. The vulnerability affects the integrity and availability of the system, and may have cascading effects on other products relying on VirtualBox.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository documents and demonstrates a proof-of-concept (PoC) exploit for CVE-2017-10235, a buffer overflow vulnerability in Oracle VirtualBox's emulation of the Intel 82540EM Ethernet Controller (E1000) in versions prior to 5.1.24. The vulnerability allows a malicious guest OS to trigger a buffer overflow in the host process by sending specially crafted network packets, potentially leading to remote code execution on the host, though the provided PoC only demonstrates a host crash (denial of service). The repository contains: - Detailed English and Spanish writeups explaining the vulnerability, exploitation method, and affected configurations. - A patch file (poc/0001-e1k-buffer-overflow-poc.patch) for the Linux kernel e1000 driver, which modifies the driver to generate the necessary transmit descriptors to trigger the bug from the guest. - Instructions and a pre-built kernel image for Ubuntu 16.04 guests, allowing easy testing of the PoC. The exploit requires the attacker to control the guest OS and run a custom kernel with the modified e1000 driver. The attack vector is a guest-to-host escape via the virtualized network device. No direct network endpoints or IPs are involved; the exploit targets the virtual hardware interface between guest and host. The PoC is operational as a denial-of-service, but the vulnerability could theoretically be weaponized for full guest-to-host code execution.
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