Description of the security update for Microsoft Exchange Server 2019: June 13, 2023 (KB5026261)

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PT-2023-3127 · Microsoft · Exchange Server

Name of the Vulnerable Software and Affected Versions: Microsoft Exchange Server affected versions not specified Description: The issue is related to insufficient input validation in Microsoft Exchange Server, allowing a remote attacker to execute arbitrary code. This can affect the system...

KLA50319 Multiple vulnerabilities in Microsoft Server Software

A remote code execution vulnerabilities were found in Microsoft Server Software. Malicious users can exploit these vulnerabilities to execute arbitrary code. Original advisories CVE-2023-32031 CVE-2023-28310 Exploitation Public exploits exist for this vulnerability. Malware exists for this...

Microsoft Exchange Server 安全漏洞

Microsoft Exchange Server is the United States Microsoft Microsoft company's set of e-mail service program. It provides e-mail access, storage, forwarding, voice mail, e-mail filtering and screening. A remote code execution vulnerability exists in Microsoft Exchange Server, which can be exploited...

Command Execution Vulnerability in 4A Unified Security Control Platform of Beijing Qixingchen Information Security Technology Co.

Beijing Qixingchen Information Security Technology Co., Ltd. is an enterprise mainly engaged in science and technology promotion and application service industry. A command execution vulnerability exists in the 4A Unified Security Control Platform of Beijing Qixingchen Information Security...

PowerExchange Backdoor and Web Shells Breach at UAE Government Agency

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary A high-severity attack targeted a UAE government agency, utilizing a custom PowerShell backdoor named PowerExchange and web shells on Microsoft Exchange servers. To receive real-time threat advisories,...

New PowerExchange Backdoor Used in Iranian Cyber Attack on UAE Government

An unnamed government entity associated with the United Arab Emirates U.A.E. was targeted by a likely Iranian threat actor to breach the victim's Microsoft Exchange Server with a "simple yet effective" backdoor dubbed PowerExchange. According to a new report from Fortinet FortiGuard Labs, the...

APT trends report Q1 2023

For more than five years, the Global Research and Analysis Team GReAT at Kaspersky has been publishing quarterly summaries of advanced persistent threat APT activity. These summaries are based on our threat intelligence research; and they provide a representative snapshot of what we have publishe...

Microsoft Exchange Active Directory Topology 15.02.1118.007 - Service MSExchangeADTopology Unquoted

Exploit Title: Microsoft Exchange Active Directory Topology 15.02.1118.007 - 'Service MSExchangeADTopology' Unquoted Service Path Exploit Author: Milad Karimi Ex3ptionaL Vendor : Microsoft Version : 15.02.1118.007 Tested on OS: Microsoft Exchange Server 2019 CU12 PoC : ============== C:\sc qc...

Microsoft Exchange Active Directory Topology 15.02.1118.007 - 'Service MSExchangeADTopology' Unquoted Service Path

Exploit Title: Microsoft Exchange Active Directory Topology 15.02.1118.007 - 'Service MSExchangeADTopology' Unquoted Service Path Exploit Author: Milad Karimi Ex3ptionaL Exploit Date: 2023-01-18 Vendor : Microsoft Version : 15.02.1118.007 Tested on OS: Microsoft Exchange Server 2019 CU12 PoC :...

Guidance for investigating attacks using CVE-2023-23397

This guide provides steps organizations can take to assess whether users have been targeted or compromised by threat actors exploiting CVE-2023-23397. A successful exploit of this vulnerability can result in unauthorized access to an organization’s environment by triggering a Net-NTLMv2 hash leak...

Guidance for investigating attacks using CVE-2023-23397

This guide provides steps organizations can take to assess whether users have been targeted or compromised by threat actors exploiting CVE-2023-23397. A successful exploit of this vulnerability can result in unauthorized access to an organization’s environment by triggering a Net-NTLMv2 hash leak...

Operation Soft Cell: Chinese Hackers Breach Middle East Telecom Providers

Telecommunication providers in the Middle East are the subject of new cyber attacks that commenced in the first quarter of 2023. The intrusion set has been attributed to a Chinese cyber espionage actor associated with a long-running campaign dubbed Operation Soft Cell based on tooling overlaps...

NAPLISTENER: New Malware in REF2924 Group's Arsenal for Bypassing Detection

The threat group tracked as REF2924 has been observed deploying previously unseen malware in its attacks aimed at entities in South and Southeast Asia. The malware, dubbed NAPLISTENER by Elastic Security Labs, is an HTTP listener programmed in C and is designed to evade "network-based forms of...

NAPLISTENER: New Malware in REF2924 Group's Arsenal for Bypassing Detection

The threat group tracked as REF2924 has been observed deploying previously unseen malware in its attacks aimed at entities in South and Southeast Asia. The malware, dubbed NAPLISTENER by Elastic Security Labs, is an HTTP listener programmed in C and is designed to evade "network-based forms of...

New Version of Prometei Botnet Infects Over 10,000 Systems Worldwide

An updated version of a botnet malware called Prometei has infected more than 10,000 systems worldwide since November 2022. The infections are both geographically indiscriminate and opportunistic, with a majority of the victims reported in Brazil, Indonesia, and Turkey. Prometei, first observed i...

The vulnerability of the Microsoft Exchange Server mail server, related to errors in code generation, allows a hacker to execute arbitrary code.

The vulnerability of Microsoft Exchange Server is related to errors in code generation. Exploiting this vulnerability allows a malicious actor to execute arbitrary code remotely...

The vulnerability of Microsoft Exchange Server’s mail server, related to improper code generation, allows a hacker to execute arbitrary code.

The vulnerability of Microsoft Exchange Server is related to incorrect code generation management. Exploiting this vulnerability allows a malicious actor to execute arbitrary code remotely...

The vulnerability of Microsoft Exchange Server servers, related to the use of dangerous methods or functions, allows attackers to execute arbitrary code.

The vulnerability of Microsoft Exchange Server servers is related to the use of dangerous methods or functions. Exploiting this vulnerability could allow a malicious actor to execute arbitrary code remotely...

Microsoft Exchange MultiValuedProperty Exposed Dangerous Function Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft Exchange. Authentication is required to exploit this vulnerability. The specific flaw exists within the MultiValuedProperty class. The issue results from the exposure of a dangerous functio...