PT-2023-4299 · Microsoft · Outlook

Name of the Vulnerable Software and Affected Versions: Microsoft Outlook affected versions not specified Description: The issue is related to errors in the representation of information by the user interface of the Microsoft Outlook email client. Exploitation of this issue may allow a remote...

Security Updates for Outlook (August 2023)

The Microsoft Outlook application installed on the remote host is missing a security update. It is, therefore, affected by the following vulnerability: - A session spoofing vulnerability exists. An attacker can exploit this to perform actions with the privileges of another user. CVE-2023-36893...

PT-2023-4373 · Microsoft · Windows Mshtml Platform +2

Name of the Vulnerable Software and Affected Versions: Windows HTML Platforms affected versions not specified Description: A security-feature bypass vulnerability in the Windows HTML Platforms allows attackers to affect the system. The issue is related to errors in privilege management...

Microsoft Patch Tuesday July 2023: Vulristics improvements, Office RCE, SFB SmartScreen and Outlook, EoP MSHTML and ERS, other RCEs

Microsoft Patch Tuesday July 2023: Vulristics improvements, Office RCE, SFB SmartScreen and Outlook, EoP MSHTML and ERS, other RCEs. Hello everyone! This episode will be about Microsoft Patch Tuesday for July 2023, including vulnerabilities that were added between June and July Patch Tuesdays...

The vulnerability of the Microsoft Outlook email client, related to insufficient validation of input data, allows attackers to circumvent existing security restrictions.

The vulnerability of the Microsoft Outlook email client is related to insufficient validation of input data. Exploiting this vulnerability can allow an attacker to bypass existing security restrictions remotely...

Azure AD Token Forging Technique in Microsoft Attack Extends Beyond Outlook, Wiz Reports

The recent attack against Microsoft's email infrastructure by a Chinese nation-state actor referred to as Storm-0558 is said to have a broader scope than previously thought. According to cloud security company Wiz, the inactive Microsoft account MSA consumer signing key used to forge Azure Active...

Microsoft Office 365 Version 18.2305.1222.0 - Elevation of Privilege / Remote Code Execution

Title: Microsoft Office 365 Version 18.2305.1222.0 - Elevation of Privilege + RCE. Author: nu11secur1ty Vendor: https://www.microsoft.com/ Software: https://www.microsoft.com/en-us/microsoft-365/microsoft-office Reference: https://portswigger.net/web-security/access-control CVE-2023-33148...

Upmoutlookhook64.dll error launching a Published Desktop session

Error "C:\Program Files\Citrix\User Profile Manager\upmoutlookhook64.dll is either not designed to run on Windows or it contains an error" when launching Outlook from a Published Desktop...

Microsoft Office 365 Version 18.2305.1222.0 - Elevation of Privilege + RCE.

Title: Microsoft Office 365 Version 18.2305.1222.0 - Elevation of Privilege + RCE. Author: nu11secur1ty Date: 07.18.2023 Vendor: https://www.microsoft.com/ Software: https://www.microsoft.com/en-us/microsoft-365/microsoft-office Reference: https://portswigger.net/web-security/access-control...

Comprehensive analysis of initial attack samples exploiting CVE-2023-23397 vulnerability

On March 14, 2023, Microsoft published a blogpost describing an Outlook Client Elevation of Privilege Vulnerability CVSS: 9.8 CRITICAL. The publication generated a lot of activity among white, grey and black hat researchers, as well as lots of publications and tweets about the vulnerability and i...

Microsoft validation error allowed state actor to access user email of government agencies and others

Microsoft is getting criticized for the way in which it handled a serious security incident that allowed a suspected Chinese espionage group to access user email from approximately 25 organizations, including government agencies and related consumer accounts in the public cloud. The attacks were...

Microsoft Office 365 18.2305.1222.0 Remote Code Execution

Title: Microsoft Office 365 Version 18.2305.1222.0 - Elevation of Privilege Vulnerability + RCE. Author: nu11secur1ty Date: 07.18.2023 Vendor: https://www.microsoft.com/ Software: https://www.microsoft.com/en-us/microsoft-365/microsoft-office Reference:...

The vulnerability of the Microsoft Outlook email client, related to errors in information presentation on the user interface, allows attackers to perform spear-phishing attacks.

The vulnerability of the Microsoft Outlook email client is related to information representation errors in the user interface. Exploiting this vulnerability can allow attackers to perform spear-phishing attacks remotely...

The vulnerability of the Microsoft Outlook email client, related to insufficient validation of input data, allows a hacker to execute arbitrary code on the target system.

The vulnerability of the Microsoft Outlook email client is related to insufficient validation of input data. Exploiting this vulnerability allows a malicious actor to execute arbitrary code on the target system using a specially created file...

The vulnerability of the Microsoft Outlook email client, related to the execution of operations outside the buffer in memory, allows a hacker to execute arbitrary code.

The vulnerability of the Microsoft Outlook email client is related to the execution of operations outside the buffer in memory. Exploiting this vulnerability allows a malicious actor to execute arbitrary code remotely...

SUSE: Security Advisory (SUSE-SU-2023:2849-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 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...

New SOHO Router Botnet AVrecon Spreads to 70,000 Devices Across 20 Countries

A new malware strain has been found covertly targeting small office/home office SOHO routers for more than two years, infiltrating over 70,000 devices and creating a botnet with 40,000 nodes spanning 20 countries. Lumen Black Lotus Labs has dubbed the malware AVrecon, making it the third such...

U.S. Government Agencies' Emails Compromised in China-Backed Cyber Attack

An unnamed Federal Civilian Executive Branch FCEB agency in the U.S. detected anomalous email activity in mid-June 2023, leading to Microsoft's discovery of a new China-linked espionage campaign targeting two dozen organizations. The details come from a joint cybersecurity advisory released by th...

CISA and FBI Release Cybersecurity Advisory on Enhanced Monitoring to Detect APT Activity Targeting Outlook Online

The Cybersecurity and Infrastructure Security Agency CISA and Federal Bureau of Investigation FBI have released a joint Cybersecurity Advisory CSA, Enhanced Monitoring to Detect APT Activity Targeting Outlook Online, to provide guidance to agencies and critical infrastructure organizations on...

Microsoft Releases Patches for 132 Vulnerabilities, Including 6 Under Active Attack

Microsoft on Tuesday released updates to address a total of 132 new security flaws spanning its software, including six zero-day flaws that it said have been actively exploited in the wild. Of the 132 vulnerabilities, nine are rated Critical, 122 are rated Important in severity, and one has been...