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Grief Ransomware Gang Claims 41 New Victims, Targeting Manufacturers; Municipalities; & Service Companies in U.K. & Europe
Grief Operators Earned an Estimated 8.5 Million British Pounds in Four Months Key Findings: The Grief Ransomware Gang (a rebrand of the DoppelPaymer Ransomware Group) claims to have infected 41 new victims between May 27, 2021—Oct. 1, 2021 with their ransomware.Over half the companies listed on Grief’s underground leak site are based in the U.K. and Europe. The Grief Ransomware Gang appears to…
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Waterloo, ON – Oct. 12, 2021 -- eSentire, recognized globally as the Authority in Managed Detection and Response (MDR), today announced the expansion of its award-winning MDR services with Microsoft Azure Sentinel, as part of its integration with the complete Microsoft 365 Defender and Azure Defender product suites supporting Microsoft SIEM, endpoint, identity, email and cloud security services.…
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Security advisories — Jun 19, 2019

SSH Key Vulnerability in Cisco Switches

A vulnerability in the Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software has been identified by the security researcher Oliver Matula [1]. If exploited, the vulnerability would allow a remote and unauthenticated threat actor to connect to vulnerable system with root user privileges. At this time, proof of concept code is not publicly available, and exploitation has not been identified in the wild.

A security patch for the vulnerability has been released. It is highly recommended to apply the patch, after a business impact review is performed.

What are we doing about it

What you should do about it

Additional information

This Cisco vulnerability is being tracked as CVE-2019-1804 [2]. All versions of Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode prior to 14.1(1i) are affected.

The source of the vulnerability resides in the use of default SSH key pair that is present in the affected devices. The SSH key pair can be used to access affected devices through an SSH connection using IPv6. IPv4 connections are not vulnerable to this attack.

Resources:

[1] https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-nexus9k-sshkey

[2] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1804