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How Does Threat Exposure Management Optimize Security Posture?

By Waqas Threat Exposure Management is a program that enables IT teams to keep the cybersecurity of the company under control and find critical flaws early. This is a post from HackRead.com Read the original post: How Does Threat Exposure Management Optimize Security Posture?

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Researcher Spotlight: Globetrotting with Yuri Kramarz

From the World Cup in Qatar to robotics manufacturing in east Asia, this incident responder combines experience from multiple arenas  By Jon Munshaw.  Yuri “Jerzy” Kramarz helped secure everything from the businesses supporting the upcoming World Cup in Qatar to the Black Hat security conference and critical national infrastructure.  He’s no stranger to cybersecurity on the big stage, but he still enjoys working with companies and organizations of all sizes in all parts of the world.  “What really excites me is making companies more secure,” he said in a recent interview. “That comes down to a couple things, but it’s really about putting a few solutions together at first and then hearing the customer’s feedback and building from there.”  Yuri is a senior incident response consultant with Cisco Talos Incident Response (CTIR) currently based in Qatar. He walks customers through various exercises, incident response plan creation, recovery in the event of a cyber attack and much more unde...

Researcher Spotlight: Globetrotting with Yuri Kramarz

“You have completely different angles in preparing different customers for defense during major global events depending on their role, technology and function,” Kramarz said.

Researcher Spotlight: Globetrotting with Yuri Kramarz

“You have completely different angles in preparing different customers for defense during major global events depending on their role, technology and function,” Kramarz said.

Threat Advisory: Microsoft warns of actively exploited vulnerabilities in Exchange Server

Cisco Talos has released new coverage to detect and prevent the exploitation of two recently disclosed vulnerabilities collectively referred to as "ProxyNotShell," affecting Microsoft Exchange Servers 2013, 2016 and 2019. One of these vulnerabilities could allow an attacker to execute remote code on the targeted server. Limited exploitation of these vulnerabilities in the wild has been reported. CVE-2022-41040 is a Server Side Request Forgery (SSRF) vulnerability, while CVE-2022-41082 enables Remote Code Execution (RCE) when PowerShell is accessible to the attackers. While no fixes or patches are available yet, Microsoft has provided mitigations for on-premises Microsoft Exchange users on Sept. 29, 2022. Even organizations that use Exchange Online may still be affected if they run a hybrid server. Cisco Talos is closely monitoring the recent reports of exploitation attempts against these vulnerabilities and strongly recommends users implement mitigation steps while waiting for securit...

CVE-2022-20728: Cisco Security Advisory: Cisco Access Points VLAN Bypass from Native VLAN Vulnerability

A vulnerability in the client forwarding code of multiple Cisco Access Points (APs) could allow an unauthenticated, adjacent attacker to inject packets from the native VLAN to clients within nonnative VLANs on an affected device. This vulnerability is due to a logic error on the AP that forwards packets that are destined to a wireless client if they are received on the native VLAN. An attacker could exploit this vulnerability by obtaining access to the native VLAN and directing traffic directly to the client through their MAC/IP combination. A successful exploit could allow the attacker to bypass VLAN separation and potentially also bypass any Layer 3 protection mechanisms that are deployed.

CVE-2022-20662: Cisco Security Advisory: Cisco Duo for macOS Authentication Bypass Vulnerability

A vulnerability in the smart card login authentication of Cisco Duo for macOS could allow an unauthenticated attacker with physical access to bypass authentication. This vulnerability exists because the assigned user of a smart card is not properly matched with the authenticating user. An attacker could exploit this vulnerability by configuring a smart card login to bypass Duo authentication. A successful exploit could allow the attacker to use any personal identity verification (PIV) smart card for authentication, even if the smart card is not assigned to the authenticating user.

CVE-2022-20855: Cisco Security Advisory: Cisco IOS XE Software for Embedded Wireless Controllers on Catalyst Access Points Privilege Escalation Vulnerability

A vulnerability in the self-healing functionality of Cisco IOS XE Software for Embedded Wireless Controllers on Catalyst Access Points could allow an authenticated, local attacker to escape the restricted controller shell and execute arbitrary commands on the underlying operating system of the access point. This vulnerability is due to improper checks throughout the restart of certain system processes. An attacker could exploit this vulnerability by logging on to an affected device and executing certain CLI commands. A successful exploit could allow the attacker to execute arbitrary commands on the underlying OS as root. To successfully exploit this vulnerability, an attacker would need valid credentials for a privilege level 15 user of the wireless controller.

CVE-2022-20848: Cisco Security Advisory: Cisco IOS XE Software for Embedded Wireless Controllers on Catalyst 9100 Series Access Points UDP Processing Denial of Service Vulnerability

A vulnerability in the UDP processing functionality of Cisco IOS XE Software for Embedded Wireless Controllers on Catalyst 9100 Series Access Points could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to the improper processing of UDP datagrams. An attacker could exploit this vulnerability by sending malicious UDP datagrams to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.