Metasploit Weekly Wrap-Up

PetitPotam Improvements Metasploit’s Ruby support has been updated to allow anonymous authentication to SMB servers. This is notably useful while exploiting the PetitPotam vulnerability with Metasploit, which can be used to coerce a Domain Controller to send an authentication attempt over SMB to...

Microsoft Windows SMB Information Disclosure Vulnerability

An information disclosure vulnerability exists in the way that the Windows SMB Server handles certain requests, which could lead to information disclosure from the server...

Microsoft Windows SMB Remote Code Execution Vulnerability (CNVD-2022-74598)

Microsoft Windows SMB Server is a network file sharing protocol from Microsoft Corporation USA. It allows applications on a computer to read and write files and request services from server programs on the computer network.A remote code execution vulnerability exists in Microsoft Windows SMB, whi...

March 22, 2022—KB5011551 (OS Build 17763.2746) Preview

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March 2022 Patch Tuesday: Microsoft Releases 92 Vulnerabilities with 3 Critical; Adobe Releases 3 Advisories, 6 Vulnerabilities with 5 Critical.

Microsoft Patch Tuesday Summary Microsoft has fixed 92 vulnerabilities, including 21 Microsoft Edge vulnerabilities, in the March 2022 update, with three 3 classified as Critical as they allow Remote Code Execution RCE. This months Patch Tuesday release includes fixes for three 3 publicly disclos...

Metasploit Wrap-Up

Capture Credentials with our new SMB Server Our own Adam Galway revamped the old SMB capture module and now supports NTLMv1 and NTLMv2, as well as SMB1, SMB2 and SMB3. This was possible thanks to @zeroSteiner's new RubySMB server implementation. Metasploit is now able to capture NTLM hashes from...

Metasploit Wrap-up

PrintNightmare Rapid7 security researchers Christophe De La Fuente, and Spencer McIntyre, have added a new module for CVE-2021-34527, dubbed PrintNightmare. This module builds upon the research of Xuefeng Li, Zhang Yunhai, Zhiniang Peng, Zhipeng Huo, and cube0x0. The module triggers a remote DLL...

SUSE: Security Advisory (SUSE-SU-2012:0077-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Vulnerability Spotlight: A deep dive into macOS SMB server

By Aleksandar Nikolich.Executive summary Cisco Talos recently discovered multiple vulnerabilities in macOS’s implementation of SMB server. An adversary could exploit these vulnerabilities to carry out a variety of malicious actions, including revealing sensitive information on the server,...

Apple macOS SMB server lock request infinite loop

Summary A resource exhaustion vulnerability exists in the SMB Server on Apple macOS 11.2. A specially crafted SMB packet can trigger an infinite loop which leads to maximum CPU utilization and denial of service. This vulnerability can be triggered by sending a malicious packet to the vulnerable...

Apple macOS SMB server IOCTL request uninitialized stack variable vulnerability

Summary A memory corruption vulnerability exists in the SMB Server Apple macOS 11.1. A specially crafted SMB packet can trigger the use of an uninitialized stack variable which can lead to memory corruption and denial of service. This vulnerability can be triggered by sending a malicious packet t...

Apple macOS SMB server create file request uninitialized memory disclosure

Summary A use of uninitialized data vulnerability exists in the SMB Server Apple macOS 11.2. A specially crafted SMB packet can cause uninitialized data to end up in server reply which can leak sensitive information. This vulnerability can be triggered by sending a malicious packet to the...

Vulnerability Spotlight: Information disclosure vulnerability in macOS SMB server

Aleksandar Nikolic of Cisco Talos discovered this vulnerability. Blog by Jon Munshaw. Cisco Talos recently discovered an exploitable integer overflow vulnerability in Apple macOS’ SMB server that could lead to information disclosure. Server Message Block SMB is a network... This is only the...

Apple macOS SMB server signature verification information disclosure vulnerability

Summary An information disclosure vulnerability exists in the SMB Server Apple macOS 11.1. A specially crafted SMB packet can trigger an integer overflow, leading to information disclosure, cryptographic check bypass and denial of service. This vulnerability can be triggered by sending a maliciou...

Microsoft Windows SMB Server Information Disclosure (CVE-2020-17140)

An information disclosure vulnerability has been reported in the SMBv2 component of Microsoft Windows SMB server. The vulnerability is due to improper handling of SMB2SETINFO messages. A remote, authenticated attacker can exploit this vulnerability by sending crafted SMBv2 messages to the target...

MikroTik RouterOS Integer Underflow Vulnerability

MikroTik RouterOS is a Linux-based router operating system developed by the Latvian company MikroTik. The system can be deployed in a PC to enable it to provide router functionality. An integer underflow vulnerability exists in the SMB server in versions of MikroTik RouterOS prior to 6.45.5, whic...

CVE-2019-16160

An integer underflow in the SMB server of MikroTik RouterOS before 6.45.5 allows remote unauthenticated attackers to crash the service...

Integer overflow

An integer underflow in the SMB server of MikroTik RouterOS before 6.45.5 allows remote unauthenticated attackers to crash the service...

CVE-2019-16160

CVE-2019-16160 affects MikroTik RouterOS: an integer underflow in the SMB server prior to version 6.45.5 allows remote unauthenticated attackers to crash the service (DoS). Affected component is the SMB server in RouterOS; impact is service crash with no confidentiality/integrity gain reported. P...

MikroTik RouterOS < 6.46.7, 6.47.x < 6.48beta40, 7.x < 7.1beta3 DoS Vulnerability

MikroTik RouterOS is prone to a denial of service DoS vulnerability in the SMB server. SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE =...