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Fuzzing para-virtualized devices in Hyper-V

Introduction Introduction Hyper-V is the backbone of Azure, running on its Hosts to provide efficient and fair sharing of resources, but also isolation. That’s why we, in the vulnerability research team for Windows, have been working in the background for years now helping secure Hyper-V. And why Microsoft invites security researchers across the globe to submit their vulnerabilities through the Hyper-V Bounty Program for payment of up to $250,000 USD.

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#vulnerability#ios#mac#windows#microsoft#linux#git#intel#rce#pdf
Microsoft’s Cyber Defense Operations Center shares best practices

Today, a single breach, physical or virtual, can cause millions of dollars of damage to an organization and potentially billions in financial losses to the global economy. Each week seems to bring a new disclosure of a cybersecurity breach somewhere in the world. As we look at the current state of cybersecurity challenges today, we see the same types of attacks, but the sophistication and scope of each attack continues to grow and evolve.

CVE-2019-2455: Oracle Critical Patch Update Advisory - January 2019

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Parser). Supported versions that are affected are 5.6.42 and prior, 5.7.24 and prior and 8.0.13 and prior. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

CVE-2018-3986: TALOS-2018-0654 || Cisco Talos Intelligence Group

An exploitable information disclosure vulnerability exists in the "Secret Chats" functionality of the Telegram Android messaging application version 4.9.0. The "Secret Chats" functionality allows a user to delete all traces of a chat, either by using a time trigger or by direct request. There is a bug in this functionality that leaves behind photos taken and shared on the secret chats, even after the chats are deleted. These photos will be stored in the device and accessible to all applications installed on the Android device.

CVE-2018-3988: TALOS-2018-0656 || Cisco Talos Intelligence Group

Signal Messenger for Android 4.24.8 may expose private information when using "disappearing messages." If a user uses the photo feature available in the "attach file" menu, then Signal will leave the picture in its own cache directory, which is available to any application on the system.

CVE-2018-3854: TALOS-2018-0537 || Cisco Talos Intelligence Group

An exploitable information disclosure vulnerability exists in the password protection functionality of Quicken Deluxe 2018 for Mac version 5.2.2. A specially crafted sqlite3 request can cause the removal of the password protection, allowing an attacker to access and modify the data without knowing the password. An attacker needs to have access to the password-protected files to trigger this vulnerability.

CVE-2018-3951: TALOS-2018-0620 || Cisco Talos Intelligence Group

An exploitable remote code execution vulnerability exists in the HTTP header-parsing function of the TP-Link TL-R600VPN HTTP Server. A specially crafted HTTP request can cause a buffer overflow, resulting in remote code execution on the device. An attacker can send an authenticated HTTP request to trigger this vulnerability.

CVE-2018-3950: TALOS-2018-0619 || Cisco Talos Intelligence Group

An exploitable remote code execution vulnerability exists in the ping and tracert functionality of the TP-Link TL-R600VPN HWv3 FRNv1.3.0 and HWv2 FRNv1.2.3 http server. A specially crafted IP address can cause a stack overflow, resulting in remote code execution. An attacker can send a single authenticated HTTP request to trigger this vulnerability.

CVE-2018-3949: TALOS-2018-0618 || Cisco Talos Intelligence Group

An exploitable information disclosure vulnerability exists in the HTTP server functionality of the TP-Link TL-R600VPN. A specially crafted URL can cause a directory traversal, resulting in the disclosure of sensitive system files. An attacker can send either an unauthenticated or an authenticated web request to trigger this vulnerability.

CVE-2018-3948: TALOS-2018-0617 || Cisco Talos Intelligence Group

An exploitable denial-of-service vulnerability exists in the URI-parsing functionality of the TP-Link TL-R600VPN HTTP server. A specially crafted URL can cause the server to stop responding to requests, resulting in downtime for the management portal. An attacker can send either an unauthenticated or authenticated web request to trigger this vulnerability.