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Jul 29, 2021
UPDATE: PetitPotam NTLM Relay Attack
THE THREAT PetitPotam is a variant of the NTLM Relay attack discovered by security researcher Gilles Lionel. It is tracked as an authentication bypass vulnerability in Active Directory (Certificate Services); currently no CVE identifier has been assigned to this vulnerability. Proof of Concept (PoC) code released last week [1] relies on the Encrypting File System Remote (EFSRPC) protocol to…
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Tecala and eSentire Partner to Protect Enterprises across APAC from Business-Disrupting Cyber Attacks
Sydney, 12 July, 2021 - Tecala, Australia’s award-winning technology services and IT consulting provider, today announced it has chosen eSentire, the global Authority in Managed Detection and Response (MDR) cybersecurity services, as their exclusive MDR solution provider in Australia and New Zealand. This partnership will enable Tecala to augment its cybersecurity practice and offer enterprises…
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Security advisories — Jun 19, 2019

SSH Key Vulnerability in Cisco Switches

1 min read

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.

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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