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Microsoft Exchange vulnerabilities exploited once again for ransomware, this time with Babuk

By Chetan Raghuprasad and Vanja Svajcer, with contributions from Caitlin Huey. Cisco Talos recently discovered a malicious campaign deploying variants of the Babuk ransomware predominantly affecting users in the U.S. with smaller number of infections in U.K., Germany, Ukraine, Finland, Brazil,... [[ This is only the beginning! Please visit the blog for the complete entry ]]

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5 MITRE ATT&CK Tactics Most Frequently Detected by Cisco Secure Firewalls

Cisco Security examines the most frequently encountered MITRE ATT&CK tactics and techniques.

Where Is Cloud Permissions Management Headed?

Cloud permissions management emerged as a standalone cloud security technology but is quickly becoming part of a broader set of capabilities

Microsoft Exchange vulnerabilities exploited once again for ransomware, this time with Babuk

By Chetan Raghuprasad and Vanja Svajcer, with contributions from Caitlin Huey. Cisco Talos recently discovered a malicious campaign deploying variants of the Babuk ransomware predominantly affecting users in the U.S. with smaller number of infections in U.K., Germany, Ukraine, Finland, Brazil,... [[ This is only the beginning! Please visit the blog for the complete entry ]]

Quarterly Report: Incident Response trends from Q3 2021

Ransomware again dominated the threat landscape, while BEC grew  By David Liebenberg and Caitlin Huey.  Once again, ransomware was the most dominant threat observed in Cisco Talos Incident Response (CTIR) engagements this quarter.   CTIR helped resolve several significant... [[ This is only the beginning! Please visit the blog for the complete entry ]]

CVE-2021-40114: Cisco Security Advisory: Multiple Cisco Products Snort Memory Leak Denial of Service Vulnerability

Multiple Cisco products are affected by a vulnerability in the way the Snort detection engine processes ICMP traffic that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper memory resource management while the Snort detection engine is processing ICMP packets. An attacker could exploit this vulnerability by sending a series of ICMP packets through an affected device. A successful exploit could allow the attacker to exhaust resources on the affected device, causing the device to reload.

CVE-2021-34756: Cisco Security Advisory: Cisco Firepower Threat Defense Software Command Injection Vulnerabilities

Multiple vulnerabilities in the CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to execute arbitrary commands with root privileges. For more information about these vulnerabilities, see the Details section of this advisory.

CVE-2021-40118: Cisco Security Advisory: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Denial of Service Vulnerabilities

A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition. This vulnerability is due to improper input validation when parsing HTTPS requests. An attacker could exploit this vulnerability by sending a malicious HTTPS request to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

CVE-2021-34754: Cisco Firepower Threat Defense Software Ethernet Industrial Protocol Policy Bypass Vulnerabilities

Multiple vulnerabilities in the payload inspection for Ethernet Industrial Protocol (ENIP) traffic for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured rules for ENIP traffic. These vulnerabilities are due to incomplete processing during deep packet inspection for ENIP packets. An attacker could exploit these vulnerabilities by sending a crafted ENIP packet to the targeted interface. A successful exploit could allow the attacker to bypass configured access control and intrusion policies that should be activated for the ENIP packet.

CVE-2021-40114: Multiple Cisco Products Snort Memory Leak Denial of Service Vulnerability

Multiple Cisco products are affected by a vulnerability in the way the Snort detection engine processes ICMP traffic that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper memory resource management while the Snort detection engine is processing ICMP packets. An attacker could exploit this vulnerability by sending a series of ICMP packets through an affected device. A successful exploit could allow the attacker to exhaust resources on the affected device, causing the device to reload.